NTC Thermistor：
：：
：TSM Series
SMD NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
1
www.thinking.com.tw
2011.06
All specifications are subject to change without notice.
Features
1. RoHS & HF compliant
2. EIA size: 0201, 0402, 0603, 0805
3. Highly reliable structure
4. Operating temperature range: -40 ~ +125 ℃
5. Wide resistance range
6. Cost effective
7. Agency recognition: UL/cUL/TUV
Recommended Applications
1. Battery pack
2. Motherboard/ Notebook computer/ Personal computer
3. Liquid crystal display
4. Cellular phones
5. Bluetooth headset
Part Number Code
Structure and Dimensions
(Unit: mm)
1 2 3 4 5 6 7 8 9 10
11
12
13
14
15
16
Part No.
Size L1. W H max. L2 & L3
TSMA 0201 0.60±0.05
0.30±0.05
0.35 0.15±0.05
TSM0 0402 1.00±0.15
0.50±0.10
0.60 0.20±0.10
TSM1 0603 1.60±0.15
0.80±0.15
0.95 0.40±0.15
TSM2 0805 2.00±0.20
1.25±0.20
1.20 0.40±0.20
Product Type
TSM
THINKING
NTC Thermistor
TSM Series
Size (EIA)
A
0201
0
0402
1
0603
2
0805
Definition
of
B Value
A B
25/85
B B
25/50
Zero Power Resistance
at 25℃ (R
25
)
102
10x10
2
Ω= 1 KΩ
103
10x10
3
Ω=10 KΩ
473
47x10
3
Ω=47KΩ
Tolerance
of R
25
F
±1%
G
±2%
H
±3%
J
±5%
K
±10%
First
Two Digits
of B Value
30
31
32
：
︰
40
41
︰
30
31
32
：
︰
40
41
︰
Last
Two Digits
of B Value
0
A
1
B
2
︰
H
8
J
9
K
00
05
10
15
20
︰
75
80
85
90
95
Tolerance
of B Value
1 ±1%
2 ±2%
3 ±3%
Packaging
R Reel
B Bulk
Optional Suffix
Z RoHS & HF
Compliant
NTC Thermistor：
：：
：TSM Series
SMD NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
2
www.thinking.com.tw
2011.06
All specifications are subject to change without notice.
Electrical Characteristics
Safety
Approvals
Zero Power
Resistance
at 25°C Tolerance
of R
25
B Value Tolerance
of B value
Max. Power
Dissipation
at 25℃
Dissipation
Factor Thermal
Time
Constant
Operating
Temperature
Range
Part No.
R
25
(KΩ) ( ±%) (K) (±%) P
max
(mW)
δ(mW/°C)
τ(Sec.)
T
L
~T
U
(°C)
UL/
cUL
TUV
TSMAA682
□
34D*
6.8
3435
√
√
TSMAA103
□
34D*
10
25/85
3435
√
√
TSMAB104
□
425*
100
4250
√
√
TSMAB224
□
450*
220
1、2、
3
5、10 25/50
4500
1、2、3
140
Approx.
1.4
Approx.
1.2 -40 ~ +125
√
√
TSM0A103
□
34D*
10
3435
√
√
TSM0A103
□
391*
10
3910
√
√
TSM0A223
□
393*
22
3930
√
√
TSM0A333
□
393*
33
3930
√
√
TSM0A473
□
393*
47
3930
√
√
TSM0A503
□
395*
50
3950
√
√
TSM0A683
□
405*
68
4050
√
√
TSM0A104
□
39H*
100
3975
√
√
TSM0A224
□
405*
220
4050
√
√
TSM0A474
□
409*
470
1、2、
3
5、10 25/85
4090
1、2、3
√
√
TSM0B474
□
470*
470
5
、
10
25/50
4700
2
、
3
170
Approx.
1.7
Approx.
2.0 -40 ~ +125
√
√
TSM1A202
□
340*
2
3400
√
√
TSM1A222
□
34D*
2.2
1、2、3、
5、10 25/85
3435
1、2、3
√
√
TSM1B222
□
395*
2.2
5
、
10
25/50
3950
2
、
3
√
√
TSM1A472
□
34D*
4.7
3435
√
√
TSM1A472
□
367*
4.7
3670
√
√
TSM1A502
□
34D*
5
3435
√
√
TSM1A682
□
34D*
6.8
1、2、3、
5、10
3435
1、2、3
√
√
TSM1A682
□
430*
6.8
5
、
10
4300
2
、
3
√
√
TSM1A103
□
34D*
10
3435
√
√
TSM1A103
□
39H*
10
25/85
3975
1、2、3
√
√
TSM1B103
□
425*
10
25/50
4
250
2
、
3
√
√
TSM1A123
□
380*
1
2
3
800
√
√
TSM1A153
□
395*
15
39
50
√
√
TSM1A223
□
39H*
22
3
975
√
√
TSM1A333
□
39H*
33
39
75
√
√
TSM1A473
□
39H*
47
39
75
√
√
TSM1A503
□
39H*
50
3975
√
√
TSM1A683
□
39H*
68
3975
√
√
TSM1A104
□
405*
100
25/85
40
50
1、2、3
√
√
TSM1B104
□
425*
10
0
25/50
4250
2
、
3
√
√
TSM1A104
□
436*
100
4360
√
√
TSM1A154
□
406*
150
4060
√
√
TSM1A204
□
410*
2
0
0
4100
√
√
TSM1A224
□
410*
220
4100
√
√
TSM1A334
□
415*
330
4150
√
√
TSM1A474
□
410*
470
25/85
4100
1、2、3
√
√
TSM1B474
□
446*
470
1、2、3、
5、10
25/50
4460
2
、
3
210 Approx
2.1 Approx
3.1 -40~+125
√
√
TSM2A102
□
320*
1
3200
√
√
TSM2A472
□
34D*
4.7
3435
√
√
TSM2A502
□
34D*
5
3435
√
√
TSM2A
682
□
34D*
6.8
3435
√
√
TSM2A103
□
34D*
10
3435
√
√
TSM2A103
□
380*
10
3800
√
√
TSM2A103
□
39H*
10
3975
√
√
TSM2A153
□
395*
15
3950
√
√
TSM2A203
□
395*
20
3950
√
√
TSM2A223
□
380*
22
3800
√
√
TSM2A223
□
39H*
22
397
5
√
√
TSM2A303
□
39H*
30
3975
√
√
TSM2A473
□
39H*
47
1、2、3、
5、10 25/85
3975
1、2、3
240 Approx
2.4 Approx
5.4 -40~+125
√
√
NTC Thermistor：
：：
：TSM Series
SMD NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
3
www.thinking.com.tw
2011.06
All specifications are subject to change without notice.
Electrical Characteristics
Safety
Approvals
Zero Power
Resistance
at 25°C Tolerance
of R
25
B Value Tolerance
of B value
Max. Power
Dissipation
at 25℃
Dissipation
Factor Thermal
Time
Constant
Operating
Temperature
Range
Part No.
R
25
(KΩ) ( ±%) (K) (±%) P
max
(mW)
δ(mW/°C)
τ(Sec.)
T
L
~T
U
(°C)
UL/
cUL
TUV
TSM2A503
□
39H*
50
3975
√
√
TSM2A683
□
39H*
68
3975
√
√
TSM2A104□405*
100 4050
√
√
TSM2A204□410*
200 4100
√
√
TSM2A224□410*
220
1、2、3、
5、10 25/85
4100
1、2、3
240 Approx
2.4 Approx
5.4 -40~+125
√
√
Note 1: □ = Tolerance of R
25
Note 2: * = Tolerance of B value
Note 3: UL&cUL File No. E138827
TUV File No. R 50167657
*Special specifications are available upon request
Max. Power Dissipation Derating Curve
100
0 25 T
U
0 T
L
Ambient temperature ( )℃
℃℃
℃
T
U
：Maximum operating temperature (℃)
T
L
：Minimum operating temperature (℃)
For example：
Ambient temperature (Ta)=55 ℃
Maximum operating temperature (T
U
)＝125℃
P
Ta
=(T
U
-Ta)/(T
U
-25)×Pmax＝70% Pmax
NTC Thermistor：
：：
：TSM Series
SMD NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
4
www.thinking.com.tw
2011.06
All specifications are subject to change without notice.
0.1
1
10
100
1000
10000
100000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
0
1
10
100
1000
10000
100000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
Temperature ( )℃
℃℃
℃
Temperature ( )℃
℃℃
℃
R-T Characteristic Curves (representative)
TSM1A202□
□□
□340* ~ TSM1A334□
□□
□415*
Resistance(
K
Ω
Ω
Ω
Ω
)
TSM0A474□409*
TSM0A224□405*
TSM0A104□39H*
TSM0A683□405**
TSM0A473□393*
TSM0A333□393*
TSM0A223□393*
TSM0A103□34D*
TSM0A103□391*
TSM2A472□
□□
□34D* ~ TSM2A224□
□□
□410*
Resistance(
K
Ω
Ω
Ω
Ω
)
Temperature ( )℃
℃℃
℃
0.1
1
10
100
1000
10000
100000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
TSM2A224□410*
TSM2A204□410*
TSM2A104□405*
TSM2A683□39H*
TSM2A503□39H*
TSM2A473□39H*
TSM2A223□39H*
TSM2A103□34D*
TSM2A103□39H*
TSM0A103□
□□
□391* ~ TSM0A474□
□□
□409*
Resistance(
K
Ω
Ω
Ω
Ω
)
TSM1A334□415*
TSM1A224□410*
TSM1A204□410*
TSM1A104□405*
TSM1A683□39H*
TSM1A503□39H*
TSM1A473□39H*
TSM1A333□39H*
TSM1A223□39H*
TSM1A103□34D*
TSM1A103□39H*
TSM1A682□34D*
TSM1A502□34D*
TSM1A472□34D*
TSM1A202□340*
NTC Thermistor：
：：
：TSM Series
SMD NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
5
www.thinking.com.tw
2011.06
All specifications are subject to change without notice.
Soldering Recommendation
IR-reflow Soldering Profile
Reworking Conditions with Soldering Iron
Item Conditions
Temperature of Soldering Iron-tip 360℃ (max.)
Soldering Time 3 sec (max.)
Diameter of Soldering Iron-tip Φ3mm (max.)
Caution: Do not touch the component surface with soldering iron directly to
prevent it from damage.
Recommended Soldering Pad Dimensions
Size Z (mm) G (mm) X (mm) Y (mm)
0201 0.8 0.3 0.3 0.25
0402 1.7 0.5 0.6 0.6
0603 3.0 1.0 1.0 1.0
0805 3.4 1.0 1.4 1.2
Y
G
X
Z
3°C /sec
(max.)
60~180
sec 20~40
sec
150±20
℃
Time
255~260°C
150~200
°
C
Tamb
3°C/sec
(max.)
217°C 60~150 sec
t
8 minutes max
Preheating
Cooling
6°C /sec
(max.)
Temperature
Peak
temp
NTC Thermistor：
：：
：TSM Series
SMD NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
6
www.thinking.com.tw
2011.06
All specifications are subject to change without notice.
Notice of Soldering and Mounting on PC Board
For mounting SMDs on a PC board, supporting pin is suggested for use (refer to figure b) to avoid cracks caused by
external stress(refer to figure a).
If circuit bending is needed for PC board design, please refer to figure (c) for mounting positions to avoid cracks caused by stress imposed
on the product. O means better, △ is acceptable, and X is worst.
During circuit bending, please locate SMDs horizontally to the direction in which stress act to avoid its cracks (refer to figure d).
(d)Component Orientation
Incorrect Orientation Correct Orientation
(c)Cracks
Nozzle for
Chip Mounting
Supporting Pins
(b)Correct
Nozzle for
Chip Mounting
PC Board
Board Guide
(a)Incorrect
SMDs are located near
a
n
easily wa
r
p
ed area
Stress at the separate line is
possible to damage SMDs
.
Locate
SMD
s horizontal
ly
to the
direction
that
stress acts
NTC Thermistor：
：：
：TSM Series
SMD NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
7
www.thinking.com.tw
2011.06
All specifications are subject to change without notice.
Reliability
Item Standard Test conditions / Methods Specifications
Bending Strength
IEC 60068-2-21
Warp : 2mm
Speed ＜
0.5mm/sec.
Duration: 10 sec on PCB.
No visible dam
age
∣△R25/R25∣≦ 5 %
Solderability IEC60068-2-58
245 ± 5℃, 3 ± 0.3 sec At least 95% of terminal
electrode is covered by
new solder
Resistance to
Soldering Heat IEC60068-2-58
260 ± 5℃, 10 ± 1 sec. No visible damage
∣△R
25
/R
25
∣≦ 3 %
High
Temperature
Storage IEC60068-2-2 125 ± 5℃, 1000 ± 24 hrs No visible damage
∣△R
25
/R
25
∣≦ 5 %
Damp Heat,
Steady State IEC60068-2-3 40 ± 2℃ , 90~95% RH , 1000 ± 24 hrs No visible damage
∣△R
25
/R
25
∣≦ 3 %
Rapid Change of
Temperature IEC60068-2-14
The conditions shown below shall be repeated 5 cycles on PCB
Step Temperature (℃) Period (minutes)
1 -40 ± 5 30 ± 3
2 Room temperature 5 ± 3
3 125 ± 5 30 ± 3
4 Room temperature 5 ± 3
No visible damage
∣△R
25
/R
25
∣≦ 3 %
Max. Power
Dissipation IEC 60539-1 25 ± 5℃, Pmax. , 1000 ± 24 hrs No visible damage
∣△R
25
/R
25
∣≦ 5 %
NTC Thermistor：
：：
：TSM Series
SMD NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
8
www.thinking.com.tw
2011.06
All specifications are subject to change without notice.
Package
Taping Specification
0201& 0402 & 0603 & 0805 type
A
0
±0.05
B
0
±0.12
W
±0.2
E
±0.1
F
±0.05
P
1
±0.1
P
2
±0.05
P
0
±0.1
D
0
±0.1
K
0
±0.1
0201 0.38 0.68 8 1.75 3.5 4 2 4 1.55 0.38
0402 0.62 1.12 8 1.75 3.5 4 2 4 1.55 0.60
A
0
±0.2
B
0
±0.2
W
±0.2
E
±0.1
F
±0.05
P
1
±0.1
P
2
±0.05
P
0
±0.1
D
0
±0.1
K
0
±0.1
0603 1.1 1.9 8 1.75 3.5 4 2 4 1.55 0.95
0805 1.5 2.3 8 1.75 3.5 4 2 4 1.55 0.95
Index
Type
(Unit: mm)
Index
Type
(
Unit: mm
)
NTC Thermistor：
：：
：TSM Series
SMD NTC Thermistor for Temperature Sensing
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
9
www.thinking.com.tw
2011.06
All specifications are subject to change without notice.
Quantity
Storage Conditions of Products
Storage Conditions :
1. Storage Temperature: -10℃~+40℃
2. Relative Humidity: ≦75%RH
3. Keep away from corrosive atmosphere and sunlight.
Shelf Life : 1 year
Type Quantity (pcs/reel)
0201 15,000
0402 10,000
0603 4,000
0805 3,500
