57
9
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
POSISTORr for Circuit Protection
for Overheat Sensing Chip Type
This chip PTC Thermistor is reflow soldering SMD type
for overheat sensing for power transistors, power
diodes and power ICs in hybrid circuits.
■ Features
1. SMD type is helpful for miniaturizing circuits
because of its small size and light weight.
2. Excellent thermal response due to small size
3. Solid-state construction provides excellent
mechanical vibration and impact resistance.
4. Contactless operation provides noiseless operation.
5. Lead is not contained in the terminations.
L
T
Part Number
L W T
Dimensions (mm)
e g
1.0±0.05
1.6±0.15
2.0±0.2
0.5±0.05
0.8±0.15
1.25±0.2
0.5±0.05
0.8±0.15
0.9±0.2
0.15 to 0.4
0.1 to 0.6
0.2 min.
0.3 min.
-
0.5 min.
PRF15_RC
PRF18_RB
PRF21_RA
W
e eg
Chip Type 0402 (1005) Size
Part Number Sensing Temperature
(at 4.7k ohm)
(°C)
Maximum
Voltage
(V)
Resistance
(at 25°C)
(ohm)
Temperature Range
(°C)
PRF15BC471QB1RC 105 ±5°C 32 470 ±50% -20 to 120
PRF15BB471QB1RC 115 ±5°C 32 470 ±50% -20 to 130
PRF15BA471QB1RC 125 ±5°C 32 470 ±50% -20 to 140
This product is applied to reflow soldering.
Chip Type 0603 (1608) Size
Part Number Sensing Temperature
(at 4.7k ohm)
(°C)
Maximum
Voltage
(V)
Resistance
(at 25°C)
(ohm)
Temperature Range
(°C)
PRF18BG471QB1RB 65 ±5°C 32 470 ±50% -20 to 80
PRF18BF471QB1RB 75 ±5°C 32 470 ±50% -20 to 90
PRF18BE471QB1RB 85 ±5°C 32 470 ±50% -20 to 100
PRF18BD471QB1RB 95 ±5°C 32 470 ±50% -20 to 110
PRF18BC471QB1RB 105 ±5°C 32 470 ±50% -20 to 120
PRF18BB471QB1RB 115 ±5°C 32 470 ±50% -20 to 130
PRF18BA471QB1RB 125 ±5°C 32 470 ±50% -20 to 140
PRF18AR471QB1RB 135 ±5°C 32 470 ±50% -20 to 150
PRF18AS471QB1RB 145 ±5°C 32 470 ±50% -20 to 160
This product is applied to reflow soldering. Please consult us for flow soldering usage.
Please contact us for UL recognized products.
Chip Type 0805 (2012) Size
Part Number Sensing Temperature
(at 4.7k ohm)
(°C)
Maximum
Voltage
(V)
Resistance
(at 25°C)
(ohm)
Temperature Range
(°C)
PRF21BE471QB1RA 85 ±5°C 32 470 ±50% -20 to 100
PRF21BD471QB1RA 95 ±5°C 32 470 ±50% -20 to 110
PRF21BC471QB1RA 105 ±5°C 32 470 ±50% -20 to 120
PRF21BB471QB1RA 115 ±5°C 32 470 ±50% -20 to 130
PRF21BA471QB1RA 125 ±5°C 32 470 ±50% -20 to 140
PRF21AR471QB1RA 135 ±5°C 32 470 ±50% -20 to 150
PRF21AS471QB1RA 145 ±5°C 32 470 ±50% -20 to 160
This product is applied to reflow soldering. Please consult us for flow soldering usage.
This product is recognized by UL.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
06.3.31
58
10
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
POSISTORr for Circuit Protection
for Overheat Sensing Chip Type Tight-tolerance Type
PRF18_RB1RB series is an improvement on sensing
accuracy from existing PRF18_QB1RB series.
■ Features
1. Sensing accuracy +/-3 deg.C which is highest of
PTC Thermistor and the same level as NTC at
sensing point.
2. Same resistance-temperature characteristics as
PRF18_QB1RB series.
Easy to use higher accurate sensing type.
3. SMD type is helpful for miniaturizing circuits
because of its small size and light weight.
4. Excellent thermal response due to small size
5. Solid-state construction provides excellent
mechanical vibration and impact resistance.
6. Contactless operation provides noiseless operation.
7. Lead is not contained in the terminations.
L
T
Part Number
L W T
Dimensions (mm)
e g
1.0±0.05
1.6±0.15
2.0±0.2
0.5±0.05
0.8±0.15
1.25±0.2
0.5±0.05
0.8±0.15
0.9±0.2
0.15 to 0.4
0.1 to 0.6
0.2 min.
0.3 min.
-
0.5 min.
PRF15_RC
PRF18_RB
PRF21_RA
W
e eg
Chip Tight Tolerance Type 0603 (1608) Size
Part Number Sensing Temperature
(at 4.7k ohm)
(°C)
Maximum
Voltage
(V)
Resistance
(at 25°C)
(ohm)
Temperature Range
(°C)
PRF18BE471RB1RB 85 ±3°C 32 470 ±50% -20 to 100
PRF18BD471RB1RB 95 ±3°C 32 470 ±50% -20 to 110
PRF18BC471RB1RB 105 ±3°C 32 470 ±50% -20 to 120
PRF18BB471RB1RB 115 ±3°C 32 470 ±50% -20 to 130
This product is applied to reflow soldering. Please consult us for flow soldering usage.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
06.3.31
for Overheat Sensing Chip Type (Reference Data)
59
10
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
■ Standard Land Pattern Dimensions
a
c
Solder resist
(in mm)
b
Land
Chip
Part Number Chip (LgW) a
Dimensions (mm)
b c
1.0g0.5
1.6g0.8
Soldering
Methods 0.5 0.4-0.5 0.5
Reflow Soldering 0.6-0.8 0.6-0.7 0.6-0.8
2.0g1.25 1.0-1.2 0.5-0.7 1.0-1.2
PRF15
PRF18
PRF21
■ Resistance-Temperature Characteristics (Typical)
Temperature (°C)
Resistance Change, R/R25
0 20Y20 40 60 80 100 120 140 160
0.1
1
10
100
1000 BA
BCBE
AS
AR
BBBD
BGBF
■ Overheat Protection Circuit
R1
R2
Thermal
+Vcc
RL
RE
Connection
PTH
■ Temperature Sensing Circuit
R1
RL1
RL2
RE1
RE2
Load
+Vcc
PTH
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
06.3.31
Chip Type (Ref. Only)
60
10
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
■ Resistance-Temperature Characteristics Range
PRF15BC471QB1RC
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
PRF15BB471QB1RC
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
PRF15BA471QB1RC
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
PRF18/21BG471Q Type
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
PRF18/21BF471Q Type
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
PRF18/21BE471Q Type
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
06.3.31
Chip Type (Ref. Only)
61
10
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
Continued from the preceding page.
■ Resistance-Temperature Characteristics Range
PRF18/21BD471Q Type
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
PRF18/21BC471Q Type
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
PRF18/21BB471Q Type
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
PRF18/21BA471Q Type
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
PRF18/21AR471Q Type
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
PRF18/21AS471Q Type
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
06.3.31
Chip Tight Tolerance Type (Ref. Only)
62
10
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
■ Resistance-Temperature Characteristics Range
PRF18BE471RB1RB
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
PRF18BD471RB1RB
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
PRF18BC471RB1RB
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
PRF18BB471RB1RB
Temperature (°C)
Resistance (Ω)
Y20 0 20 40 60 80 100 120 140 160
100
100000
10000
1000
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
06.3.31
Specifications and Test Methods
No. Item Rating Value Method of Examination
The resistance value should be within the specified
tolerance.
Resistance Value (at 25°C)
1After applying maximum operating voltage for 3 mins. and
leaving for 2 hrs. at 25°C, measured by applying voltage of less
than 1.5Vdc (by a direct current of less than 10mA).
Normal appearance
Resistance change: not to exceed ±20% (*)
Vibrationability2
JIS C 5102 term 8.2
Soldered PTC to PCB
Vibration: 10-55-10Hz (1 min.)
Width: 1.5mm
Vibrate for 2 hrs. in each of 3 mutually perpendicular planes
for a total of 6 hrs.
Normal appearance
Resistance change: not to exceed ±20% (*)
Temperature Cycling5
JIS C 5102 term 9.3
Times: 5 cycles
Step
1
2
3
4
-20 +0, -3
Room temp.
+150 +3, -0
Room temp.
Temp. (°C)
Normal appearance
Resistance change: not to exceed ±20% (*)
6JIS C 5102 term 9.5
40±2°C, 90-95%RH leave for 500±8 hrs.
Min. 75% electrode is covered with new solder.
Resistance change: not to exceed ±20% (*)
Solderability3
JIS C 5102 term 8.4
Solder: Sn 63%/Pb 37% (or 60/40%)
Solder temp: 230±5°C
Soaking time: 3±0.5 sec.
Soaking position: Until a whole electrode is soaked.
Normal appearance
Resistance change: not to exceed ±20% (*)
Solder-heatability4
Solder: Sn 63%/Pb 37% (or 60/40%)
Flux: Solder paste containing less than 0.2wt% of chlorine.
Preheating: 150±5°C 3 mins.
Peak temp.: 260±5°C 10±5 sec. (reflow)
PCB: Glass Epoxy PCB (JIS C 6484)
30
10-15
30
10-15
Time (min.)
Humidity Test
Normal appearance
Resistance change: not to exceed ±20% (*)
7JIS C 5102 term 9.10
85±5°C (in air), load maximum operating voltage for 1000±12 hrs.
High Temperature
Load Test
(*) Measurement resistance after the test by applying voltage of less than 1.5Vdc by a direct current of less than 10mA after product is left at 25±2°C for 2 hours.
Above mentioned soldering in "2. Vibrationability" is done following condition at our side.
#Glass-Epoxy PC board
#Standard land dimension
#Standard solder paste
#Standard solder profile
Above conditions are mentioned in Notice.
■PRF15 Series
Chip Type Specifications and Test Methods (PRF15 Series)
63
10
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
06.3.31
Specifications and Test Methods
No. Item Rating Value Method of Examination
There is no sign of electrode exfoliation
The resistance value should be within the specified
tolerance.
Resistance Value (at 25°C)
Adhesive Strength
1
2
EIAJ ET-7403 term 9
Solder PTC to PCB and add a force of 5.0N in the direction
shown below.
After applying maximum operating voltage for 3 mins. and
leaving for 2 hrs. at 25°C, measured by applying voltage of less
than 1.5Vdc (by a direct current of less than 10mA).
Normal appearance
Resistance change: not to exceed ±20% (*)
Vibrationability3
JIS C 5102 term 8.2
Soldered PTC to PCB
Vibration: 10-55-10Hz (1 min.)
Width: 1.5mm
Vibrate for 2 hrs. in each of 3 mutually perpendicular planes
for a total of 6 hrs.
Normal appearance
Resistance change: not to exceed ±20% (*)
Temperature Cycling6
JIS C 5102 term 9.3
Times: 5 cycles
Step
1
2
3
4
-20 +0, -3
Room temp.
+150 +3, -0
Room temp.
Temp. (°C)
Normal appearance
Resistance change: not to exceed ±20% (*)
7JIS C 5102 term 9.5
40±2°C, 90-95%RH leave for 500±8 hrs.
Glass Epoxy PCB
F=5.0N
F
F
PTC
Min. 75% electrode is covered with new solder.
Resistance change: not to exceed ±20% (*)
Solderability4
JIS C 5102 term 8.4
Solder: Sn 63%/Pb 37% (or 60/40%)
Solder temp: 230±5°C
Soaking time: 3±0.5 sec.
Soaking position: Until a whole electrode is soaked.
Normal appearance
Resistance change: not to exceed ±20% (*)
Solder-heatability5
Solder: Sn 63%/Pb 37% (or 60/40%)
Flux: Solder paste containing less than 0.2wt% of chlorine.
Preheating: 150±5°C 3 mins.
Peak temp.: 260±5°C 10±5 sec. (reflow)
PCB: Glass Epoxy PCB (JIS C 6484)
30
10-15
30
10-15
Time (min.)
Humidity Test
Normal appearance
Resistance change: not to exceed ±20% (*)
8JIS C 5102 term 9.10
85±5°C (in air), load maximum operating voltage for 1000±12 hrs.
High Temperature
Load Test
(*) Measurement resistance after the test by applying voltage of less than 1.5Vdc by a direct current of less than 10mA after product is left at 25±2°C for 2 hours.
Above mentioned soldering in "2. Adhesive Strength" and "3. Vibrationability" is done following condition at our side.
#Glass-Epoxy PC board
#Standard land dimension
#Standard solder paste
#Standard solder profile
Above conditions are mentioned in Notice.
■PRF18/21 Series
Chip Type Specifications and Test Methods (PRF18/21 Series)
64
10
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
06.3.31
Specifications and Test Methods
No. Item Rating Value Method of Examination
There is no sign of electrode exfoliation
The resistance value should be within the specified
tolerance.
Resistance Value (at 25°C)
Adhesive Strength
1
2
EIAJ ET-7403 term 9
Solder PTC to PCB and add a force of 5.0N in the direction
shown below.
After applying maximum operating voltage for 3 mins. and
leaving for 2 hrs. at 25°C, measured by applying voltage of less
than 1.5Vdc. (by a direct current of less than 10mA).
Normal appearance
Resistance change: not to exceed ±20% (*1)
Vibrationability3
JIS C 5102 term 8.2
Soldered PTC to PCB
Vibration: 10-55-10Hz (1 min.)
Width: 1.5mm
Vibrate for 2 hrs. in each of 3 mutually perpendicular planes
for a total of 6 hrs.
Normal appearance
Resistance change: not to exceed ±20% (*1, 2)
Temperature Cycling6
JIS C 5102 term 9.3
Times: 5 cycles
Step
1
2
3
4
-20 +0, -3
Room temp.
+150 +3, -0
Room temp.
Temp. (°C)
Normal appearance
Resistance change: not to exceed ±20% (*1, 2)
7JIS C 5102 term 9.5
40±2°C, 90-95%RH leave for 500±8 hrs.
Glass Epoxy PCB
F=5.0N
F
F
PTC
Min. 75% electrode is covered with new solder.
Resistance change: not to exceed ±20% (*1)
Solderability4
JIS C 5102 term 8.4
Solder: Sn 63%/Pb 37% (or 60/40%)
Solder temp: 230±5°C
Soaking time: 3±0.5 sec.
Soaking position: Until a whole electrode is soaked
Normal appearance
Resistance change: not to exceed ±20% (*1)
Solder-heatability5
Solder: Sn 63%/Pb 37% (or 60/40%)
Flux: Solder paste containing less than 0.2wt% of chlorine.
Preheating: 150±5°C 3 mins.
Peak temp.: 260±5°C 10±5 sec. (reflow)
PCB: Glass Epoxy PCB (JIS C 6484)
30
10-15
30
10-15
Time (min.)
Humidity Test
Normal appearance
Resistance change: not to exceed ±20% (*1, 2)
8JIS C 5102 term 9.10
85±5°C (in air), load maximum operating voltage for 1000±12 hrs.
High Temperature
Load Test
(*1) Measurement resistance after the test by applying voltage of less than 1.5Vdc by a direct current of less than 10mA after product is left at 25±2°C for 2 hours.
(*2) Sensing temp. change: not to exceed ±1°C
Above mentioned soldering in "2. Adhesive Strength" and "3. Vibrationability" is done following condition at our side.
#Glass-Epoxy PC board
#Standard land dimension
#Standard solder paste
#Standard solder profile
Above conditions are mentioned in Notice.
Chip Tight Tolerance Type Specifications and Test Methods
65
10
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
06.3.31
66
11
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
POSISTORr for Circuit Protection
for Overheat Sensing Lead Type
PTFM type has been developed for protecting power
transistors, stereo main amplifiers, etc. from
overheating, and also for sensing the temperature of
other components which may be overheated. The "POSISTOR"
offers an excellent temperature sensing ability,
exhibiting a steep change in electrical resistivity
near the temperature setting. PTFL type is suitable
for use as an air temperature sensor.
■ Features
1. PTFM type is a screw-fixing type and PTFL type is a
lead type, therefore mounting is easy.
2. Compact and light design as well as excellent
thermal response.
3. Solid-state construction withstands mechanical
vibration and impact sufficiently.
4. Contactless operation provides a prolonged service
life, yet permits noiseless operation.
5. The operating point of "POSISTOR" is set on the
steepest point along the resistance-temperature
characteristic curve, thus performing the overheat
protective operation securely.
6. PTFM type and PTFL type have the same temperature
characteristic, providing a selection depending on
the mounting method.
3.5±1.5
4.0 max.
ø0.5±0.05
(in mm)
5.0 max.
3.0 max.
25 min.
PTFL Series
ø0.5±0.05
2.5max.
t0.5±0.05
3.0±0.3
7.5±0.4
3.7±0.3
13.2±0.539±5
3.5±1.5
in mm
PTFM Series
Part Number Max. Voltage
(V)
Sensing
Temp. (TS)
(°C)
Resistance Value
at 25°C (max.)
(ohm)
Resistance Value
(at Sensing Temp. -10°C)
(max.)
Resistance Value
(at Sensing Temp. TS°C)
(min.)
PTFp04BH471Q2N34B0 16 60 100 330ohm 470ohm
PTFp04BG471Q2N34B0 16 70 100 330ohm 470ohm
PTFp04BF471Q2N34B0 16 80 100 330ohm 470ohm
PTFp04BE471Q2N34B0 16 90 100 330ohm 470ohm
PTFp04BD471Q2N34B0 16 100 100 330ohm 470ohm
PTFp04BC471Q2N34B0 16 110 100 330ohm 470ohm
PTFp04BB471Q2N34B0 16 120 100 330ohm 470ohm
PTFp04BH222Q2N34B0 16 60 330 1.5k ohm 2.2k ohm
PTFp04BG222Q2N34B0 16 70 330 1.5k ohm 2.2k ohm
PTFp04BF222Q2N34B0 16 80 330 1.5k ohm 2.2k ohm
PTFp04BE222Q2N34B0 16 90 330 1.5k ohm 2.2k ohm
PTFp04BD222Q2N34B0 16 100 330 1.5k ohm 2.2k ohm
PTFp04BC222Q2N34B0 16 110 330 1.5k ohm 2.2k ohm
PTFp04BB222Q2N34B0 16 120 330 1.5k ohm 2.2k ohm
A blank is filled with type codes. (L: Lead type, M: with Lug-terminal)
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
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67
11
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• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
■ Resistance-Temperature Characteristics
Resistance Change (R/R25˚C)
−20 Temperature (˚C)
104
103
102
10
1
0 20 40 60 80 100 120 140
BC
BD
BE
BF
BG
BH
BB
■ Example of Thermal Response Time
Operating Time of POSISTORr
6050403020100
20
0
40
60
80
100
Time (sec.)
,,
,,,
,,,
,,
Aluminum plate
T=90°C constant
PTFM04BE222Q2N34B0
Relation between resistance change and time after POSISTORr
PTFM04BE222Q2N34B0 is installed on the part heated at a constant
temperature of 90°C (3mm thick alminum sheet) is shown in the figure below.
Resistance Change (%) (R/R90°C)
Heater
R meter
POSISTORr
Screw
■ Overheat Protection Circuit
R1
R2
Thermal
+Vcc
RL
RE
Connection
PTH
■ Overheat Sensing Circuit
R1
RL1
RL2
RE1
RE2
Load
+Vcc
PTH
■ Resistance-Temperature Characteristics Range (Ref. Only)
PTF_04BH471Q2N34B0
Resistance (Ω)
0Temperature (˚C)
102
−20 40 60 12080 100 140
10
103
104
20
PTF_04BG471Q2N34B0
Resistance (Ω)
0
Temperature (˚C)
102
−20 40 60 12080 100 140
10
103
104
20
Continued on the following page.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
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68
11
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
Continued from the preceding page.
■ Resistance-Temperature Characteristics Range (Ref. Only)
PTF_04BF471Q2N34B0
Resistance (Ω)
0Temperature (˚C)
102
−20 40 60 12080 100 140
10
103
104
20
PTF_04BE471Q2N34B0
Resistance (Ω)
0Temperature (˚C)
102
−20 40 60 12080 100 140
10
103
104
20
PTF_04BD471Q2N34B0
Resistance (Ω)
−20 Temperature (˚C)
102
0 20 40 10060 80 140120
10
103
104
PTF_04BC471Q2N34B0
Resistance (Ω)
0Temperature (˚C)
102
20 40 60 12080 100 160140
10
103
104
PTF_04BB471Q2N34B0
Resistance (Ω)
0Temperature (˚C)
102
20 40 60 12080 100 160140
10
103
104
PTF_04BH222Q2N34B0
Resistance (Ω)
0Temperature (˚C)
103
−20 40 60 12080 100 140
102
104
105
20
Continued on the following page.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
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69
11
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
Continued from the preceding page.
■ Resistance-Temperature Characteristics Range (Ref. Only)
PTF_04BG222Q2N34B0
Resistance (Ω)
0Temperature (˚C)
103
−20 40 60 12080 100 140
102
104
105
20
PTF_04BF222Q2N34B0
Resistance (Ω)
0Temperature (˚C)
103
−20 40 60 12080 100 140
102
104
105
20
PTF_04BE222Q2N34B0
Resistance (Ω)
0
Temperature (˚C)
103
−20 40 60 12080 100 140
102
104
105
20
PTF_04BD222Q2N34B0
Resistance (Ω)
−20 Temperature (˚C)
103
0 20 40 10060 80 140120
102
104
105
PTF_04BC222Q2N34B0
Resistance (Ω)
0
Temperature (˚C)
103
20 40 60 12080 100 160140
102
104
105
PTF_04BB222Q2N34B0
Resistance (Ω)
0
Temperature (˚C)
103
20 40 60 12080 100 160140
102
104
105
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
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No.
Item Rating Value Method of Examination
No problem
Resistance Value
Withstanding Voltage
1
2
We apply AC voltage 120% that of the maximum voltage to
POSISTORrby raising voltage gradually for 180T5 seconds at
25°C. (A protective resistor is to be connected in series, and the
inrush current through POSISTORrmust be limited below max.
rated value.)
Resistance value is measured by applying voltage under 1.5Vdc
(by a direct current of less than 10mA) in a silicone oil vessel.
Satisfies specification
Specifications and Test Methods
No damage
Tensile Strength of
Lead Wire Terminal
3
The load is gradually applied to each terminal of POSISTORr
until the force of the following table in the axial-direction with
fixing POSISTORr's body itself and this load is kept for 10
seconds.
Lead wire does not come off
4
POSISTORris held so that it is perpendicular to the lead wire
with the following load hanging in the axial direction of the lead
wire. The lead wire is slowly bent toward 90° and returned; then it
is slowly bent in the opposite direction and returned to original
state. (Above mentioned procedure is done slowly with one
cycle.)
1
Series
PTFL
PTFM 4.90N
9.80N
Force
Bending Strength of
Lead Wire Terminal
5 Solderability Solder is applied around the lead wire covering
3/4 or more of the circumference without gap in
the axial-direction.
The lead wire of POSISTORris soaked in a Isopropyl Alcohol
(JIS K 8839) or ethanol (JIS K 8101) solution (about 25wt%) of
colophony (JIS K 5902) for 5-10 sec. And, each lead wire is
soaked in molten solder (JIS Z 3282 H60A) at 235T5°C from the
bottom to a point of 2.0-2.5mm for 2T0.5 sec.
8Load Cycle Test at
High Temperature
∆R/R25VT20% POSISTORris set in an environmental chamber at 85T3°C with
maximum voltage applied for 1.5 hours and then is left without
voltage applied for 0.5 hours.
This cycle is repeated for 1000T10 hours, and after the device is
left at room temperature (25°C) for one hour, the resistance
measurement is performed.
(A protective resistor is to be connected in series and the inrush
current through POSISTORrmust be limited below max. rated
value.)
Series
PTFL
PTFM 2.45N
4.90N
Force
Rs
PTH
S.W
Test circuit
6Terminal Durability of
Soldering ∆R/R25VT15%
The lead wire of POSISTORris soaked in molten solder (JIS Z
3282 H60A) at 350T10°C from the bottom to a point of 2.0-2.5
mm for 3.5T0.5 sec. And, after the device is left at room
temperature (25°C) for 24T4 hours, the resistance is measured.
7Humidity Test ∆R/R25VT20%
POSISTORris set in an environmental chamber at 40T2°C and
90-95% humidity for 500T4 hours.
And after the device is left at room temperature (25°C) for one
hour, the resistance measurement is performed.
for Temperature Sensor Lead Type Specifications and Test Methods
70
11
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• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
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!Caution/Notice
71
11
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
■ !Caution (Storage and Operating Condition)
This product is designed for application in an
ordinary environment (normal room temperature,
humidity and atmospheric pressure). Do not use under
the following conditions because all these factors
can deteriorate the characteristics or cause product
failure and burn-out.
1. Corrosive gas or deoxidizing gas (Chlorine gas,
Hydrogen sulfide gas, Ammonia gas, Sulfuric acid
gas, Nitric oxide gas, etc.)
2. Volatile or flammable gas
3. Dusty conditions
4. Under vacuum, or under high or low-pressure
5. Wet or humid conditions
6. Places with salt water, oils, chemical liquids or
organic solvents
7. Strong vibrations
8. Other places where similar hazardous conditions
exist
■ !Caution (Other)
Be sure to provide an appropriate fail-safe function
on your product to prevent secondary damage that may be
caused by the abnormal function or the failure of our
product.
■ Notice (Storage and Operating Condition)
To keep solderability of product from declining,
following storage condition is recommended.
1. Storage condition:
Temperature -10 to +40 degrees C
Humidity less than 75%RH (not dewing condition)
2. Storage term:
Use this product within 6 months after delivery
by first-in and first-out stocking system.
3. Handling after unpacking:
After unpacking, promptly reseal this product or
store it in a sealed container with a drying agent.
4. Storage place:
Do not store this product in corrosive gas
(sulfuric acid, chlorine, etc.) or in direct
sunlight.
■ Notice (Soldering and Mounting)
PTGL Series
When the lead of this product is soldered, pay
attention as follows to avoid the decline of element
characteristics or break-down of the element.
1. Use Rosin type flux or non-activated flux
2. Do not dip the body into flux.
(flux should be coated to lead wire only for
soldering.)
3. Be sure that preheating does not melt the
soldering of this product.
■ Notice (Soldering and Mounting)
PTFL/PTFM Series
1. PTFM type is to be screwed beside the Power-
Transistor on the radiative plate.
2. If PTFL type is to be mounted with thermal cement,
the cement should not be of the Cyano Acrylate
family.
3. Please bend the lead wire far from the root of the
body and do not apply force to the lead wire of
the product.
4. When the lead of this product is soldered, pay
attention as follows to avoid the decline of
element characteristics or break-down of the
element.
(1) Use Rosin type flux or non-activated flux.
(2) Do not dip the body into flux.
(Flux should be coated to lead wire only for
soldering.)
(3) Be sure that preheating does not melt the
soldering of this product.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
06.3.31
(2) Drying
After cleaning, promptly dry this product.
To remove the flux after soldering, observe the following
points in order to avoid deterioration of the characteristics
or any change to the external electrodes quality.
(1) Cleaning Conditions
2-propanol
Less than 5 min.
at room temp.
or
Less than 2 min.
at 40˚C max.
Less than 1 min.
20W/L Frequency
of several 10kHz
to 100kHz.
Solvent Dipping Cleaning Ultrasonic Cleaning
A sufficient cleaning should be applied to remove flux completely.
(1) Printing Conditions of Solder Paste
(a) Standard thickness of solder paste printing should
be from 0.15 to 0.20 mm.
(b) After soldering, the solder fillet should be a height
from 0.2 mm to the thickness of this product (see the
figure at right).
(c) Too much solder gives too strong mechanical stress
to this product. Such stress may cause cracking or
other mechanical damage. Also, it can destroy the
electrical performance of this product.
In your mounting process, observe the following points in
order to avoid deterioration of the characteristics or
destruction of this product. The mounting quality of this
product may also be affected by the mounting conditions,
shown in the points below.
This product is for only reflow soldering. Flow soldering
should not be allowed.
0.2mm V T V E
T
Solder
Solder
Electrode
1. Solder and Flux
2. Cleaning Conditions and Drying
3. Soldering Conditions
(1) Solder Paste
Use solder paste Sn:Pb=63:37wt%.
For your reference, we are using
63Sn/37Pb RMA9086 90-3-M18,
manufactured by Alpha Metals Japan Ltd.
96.5Sn/3.0Ag/0.5Cu M705-221BM5-42-11,
manufactured by Senju Metal Industry Co., LTD for any
Internal tests of this product.
(2) Flux
Use rosin-based flux. Do not use strong acidic flux
(with halide content exceeding 0.2wt%).
E
Continued on the following page.
■ Notice (Soldering and Mounting) PRG/PRF Series
!Caution/Notice
72
11
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
06.3.31
(3) Standard Temperature Profile for Soldering
(a) Insufficient preheating may cause a crack on
ceramic body. Difference between preheating
temperature and maximum temperature in the profile
should be 100D.
(b) Rapid cooling by dipping in solvent or by other
means is not recommended.
,
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Soldering Gradual cooling
(in air)
Preheating (in air)
1 to 2 min.
200
100
0
240°C
[Reflow Soldering Condition]
*In the event that soldering is repeated more than twice the
accumulated soldering time should be in the above allowable
soldering time (2).
*20 sec.max.
Preheating: 150T10°C, 1 to 2min.
Soldering: 240°C, 20 sec. max.
(4) There may be a risk unexpected failures (tombstone,
insufficient solder-wetting, etc.) in the mounting
process, caused by the mounting conditions. Please
make sure that this product is correctly mounted under
specified mounting conditions.
(2) Allowable Soldering Temperature and Time
(a) Solder within the temperature and time
combinations, indicated by the slanted lines in the
right graphs.
(b) The excessive soldering conditions may cause
dissolution of metallization or deterioration of solder-
wetting on the external electrode.
(c) In the event that soldering is repeated more than
twice, the allowable reflow soldering time should be
the accumulated soldering time.
Time (sec.)
0 10 20 30 40 50 60
260
250
270
240
230
220
210
200
Continued from the preceding page.
[Allowable Reflow Soldering Temp. and Time]
Temperature (°C)
Temperature (°C)
!Caution/Notice
73
11
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• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
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!Caution/Notice
74
11
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
■ Notice (Handling)
PTGL Series
1. Do not apply an excessive force to the lead.
Otherwise, it may cause the junction between lead
and element to break, or may crack the element.
Therefore, holding the element side lead wire is
recommended when lead wire is bent or cut.
2. This product does not have waterproof
construction. Splashed water may cause failure
mode such as decline of characteristics or current
leak.
3. When this product is operated, temperature of some
area may be over 100 to 160 degrees C. Be sure that
surrounding parts and inserting material can
withstand the temperature. If the surrounding part
and material are kept under such condition, they
may deteriorate or produce harmful gas
(Chlorine gas, Hydrogen sulfide gas, Ammonia gas,
Sulfuric acid gas, Nitric oxide gas, etc.). And
such harmful gas may deteriorate the element.
■ Notice (Handling)
PTFL/PTFM Series
1. Do not apply an excessive force to the lead.
Otherwise, it may cause the junction between lead
and element to break, or may crack the element.
Therefore, holding the element side lead wire is
recommended when lead wire is bent or cut.
2. This product does not have waterproof construction.
Splashed water may cause failure mode such as
decline of characteristics or current leak.
■ Notice (Handling)
PRG/PRF Series
1. When this product is operated, temperature of some
area may be over 100 to 150 degrees C. Be sure that
surrounding parts and inserting material can
withstand the temperature. If the surrounding part
and material are kept under such condition, they
may deteriorate or produce harmful gas
(Chlorine gas, Hydrogen sulfide gas, Ammonia gas,
Sulfuric acid gas, Nitric oxide gas, etc.). And
such harmful gas may deteriorate the element.
2. Do not assemble this product with air-sealing or
resin casting. Such sealing may deteriorate
element.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
06.3.31
*1.05
Direction feed
1.1 max.
1.75±0.1
4.0±0.1
2.0±0.1
4.0±0.1
3.5±0.05
8.0±0.3
(1.85)
(in mm)
(in mm)
ø13.0±0.2
ø21.0±0.8
9.0
ø60
ø180W0
Y1.5
W1.0
Y0
W1.0
Y0
2.0±0.5
13.0±1.0
Reel Dimensions
Part Number Quantity (pcs.)
Paper Tape Embossed Tape
PRF15_RC
PR*18_RB
PR*21_RA
PR*21_RK
10000
4000
-
-
-
-
4000
3000
1.45±0.1 Direction feed
1.75±0.1
4.0±0.1 4.0±0.1
2.0±0.1
3.5±0.05
8.0±0.3
ø1.5W0.1
Y0
2.25±0.1
ø1.0±0.1
1.30±0.05
0.25±0.05
1.45 Direction feed
1.75±0.1
4.0±0.1 4.0±0.1
2.0±0.1
3.5±0.05
8.0±0.3
ø1.0W0.3
Y0
ø1.5W0.1
Y0
2.25
1.1
0.2
PRF15_RC Series: Paper Tape PR*18_RB Series: Paper Tape
PR*21_RA Series: Embossed Tape PR*21_RK Series: Embossed Tape
! Minimum Quantity Guide
! Tape Dimensions
! Reel Dimensions
*0.65
Direction of feed
* Reference Value * Reference Value
0.8 max.
1.75±0.1
2.0±0.05 4.0±0.1
3.5±0.1
0.8±0.3
ø1.5W0.1
Y0
*1.15
ø1.5W0.1
Y0
PRG/PRF Series Package
75
11
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note R90E.pdf
06.3.31
