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Features:
Please refer to the High-Power Resistor Application Note (page 8) for more information on designing and implementing high power
resistor types.
Electrical Specifications – CSRF-HP
• High power rating
• Wide resistance range
• Current handling up to 26 amps
• TCR down to ±50 ppm/C
• Other resistance values may be available
• RoHS compliant, lead-free and halogen-free
Electrical Specifications - CSRF
Ohmic Range (Ω) and Tolerance
1% and 5%
±300 ppm/ºC 0.003 - 0.007
±200 ppm/ºC 0.008 - 0.02
±100 ppm/ºC 0.002 - 0.004
±150 ppm/ºC 0.005 - 0.009
±75 ppm/ºC 0.01 - 0.03
±100 ppm/ºC 0.003 - 0.01
±50 ppm/ºC 0.011 - 0.03
±100 ppm/ºC 0.003 - 0.01
±50 ppm/ºC 0.011 - 0.05
1.5W ±100 ppm/ºC 0.002
±100 ppm/ºC 0.003 - 0.004
±75 ppm/ºC 0.005 - 0.03
±100 ppm/ºC 0.003 - 0.009
±50 ppm/ºC 0.01 - 0.1
±100 ppm/ºC 0.003 - 0.01
±50 ppm/ºC 0.011 - 0.6
(2) Qualified to AEC-Q200
Resistance Temperature
Coefficient
Power Rating (Watts)
Type / Code
CSRF0805 (2)
0.5W
CSRF0603 (2)
0.25W
CSRF0402 (2)
0.125W
(1) For 2010 size, MOQ of 20Kpcs per value is required.
CSRF4320
±50 ppm/ºC
0.01 - 0.33
1W
5W
CSRF1206 (2)
CSRF2512 (2)
CSRF0612
2W
CSRF2010 (1)
1W
1W
Ohmic Range (Ω) and Tolerance
1% and 5%
±400 ppm/ºC 0.0025
±300 ppm/ºC 0.003 - 0.004
±200 ppm/ºC 0.005 - 0.007
±100 ppm/ºC 0.008 - 0.02
±100 ppm/ºC 0.002 - 0.009
±75 ppm/ºC 0.01 - 0.03
±100 ppm/ºC 0.005 - 0.009
±50 ppm/ºC 0.01 - 0.03
Type / Code
Power Rating (Watts)
Resistance Temperature
Coefficient
(2) Qualified to AEC-Q200
CSRF0402…-HP (2)
0.25W
CSRF0805…-HP
1W
CSRF0603…-HP (2)
0.5W
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Mechanical Specifications – CSRF0402
Mechanical Specifications – CSRF0402…-HP
CSRF0402 0.039 ± 0.004 0.022 ± 0.004 0.018 ± 0.004 0.014 ± 0.004 inches
0.003Ω - 0.007Ω 1.00 ± 0.10 0.55 ± 0.10 0.45 ± 0.10 0.35 ± 0.10 mm
CSRF0402 0.039 ± 0.004 0.022 ± 0.004 0.018 ± 0.004 0.010 ± 0.004 inches
0.008Ω - 0.02Ω 1.00 ± 0.10 0.55 ± 0.10 0.45 ± 0.10 0.25 ± 0.10 mm
Type / Code
Unit
Bottom Termination
L
Body Length
W
Body Width
t
Body Height
A
CSRF0402…-HP 0.039 ± 0.004 0.022 ± 0.004 0.018 ± 0.004 0.018 ± 0.004 inches
0.0025Ω 1.00 ± 0.10 0.55 ± 0.10 0.45 ± 0.10 0.45 ± 0.10 mm
CSRF0402… -HP 0.039 ± 0.004 0.022 ± 0.004 0.018 ± 0.004 0.018 ± 0.004 inches
0.003Ω - 0.004Ω 1.00 ± 0.10 0.55 ± 0.10 0.45 ± 0.10 0.45 ± 0.10 mm
Unit
Body Length
Body Width
Body Height
Bottom Termination
Type / Code
L
W
t
A
CSRF0402…-HP 0.039 ± 0.004 0.022 ± 0.004 0.018 ± 0.004 0.014 ± 0.004 inches
0.005Ω - 0.007Ω 1.00 ± 0.10 0.55 ± 0.10 0.45 ± 0.10 0.35 ± 0.10 mm
CSRF0402…-HP 0.039 ± 0.004 0.022 ± 0.004 0.018 ± 0.004 0.010 ± 0.004 inches
0.008Ω - 0.02Ω 1.00 ± 0.10 0.55 ± 0.10 0.45 ± 0.10 0.25 ± 0.10 mm
Unit
Body Length
Body Width
Body Height
Bottom Termination
Type / Code
L
W
t
A
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Mechanical Specifications – CSRF0603 and CSRF0603…-HP
Mechanical Specifications – CSRF0805…-HP
Mechanical Specifications – CSRF0805
0.063 ± 0.004 0.031 ± 0.004 0.022 ± 0.006 0.022 ± 0.008
inches
1.60 ± 0.10 0.80 ± 0.10 0.55 ± 0.15 0.55 ± 0.20
mm
0.063 ± 0.004 0.031 ± 0.004 0.022 ± 0.006 0.012 ± 0.008
inches
1.60 ± 0.10 0.80 ± 0.10 0.55 ± 0.15 0.30 ± 0.20
mm
CSRF0603
0.002Ω - 0.004Ω
CSRF0603
0.005Ω- 0.03Ω
Type / Code
L
Note: CSRF0603…2L50 has no marking.
W
t
A
Unit
Body Length
Body Width
Body Height
Bottom Termination
0.083 ± 0.008 0.051 ± 0.006 0.028 ± 0.006 0.016 ± 0.008 0.018 ± 0.008
inches
2.10 ± 0.20 1.30 ± 0.15 0.70 ± 0.15 0.40 ± 0.20 0.45 ± 0.20
mm
CSRF0805
Unit
Body Length
Body Width
Body Height
Top Termination
Bottom Termination
Type / Code
L
W
t
A
B
0.083 ± 0.008 0.051 ± 0.006 0.028 ± 0.006 0.018 ± 0.008
inches
2.10 ± 0.20 1.30 ± 0.15 0.70 ± 0.15 0.45 ± 0.20
mm
CSRF0805…-HP
Unit
Body Length
Body Width
Body Height
Bottom Termination
Type / Code
L
W
t
B
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Mechanical Specifications – CSRF0612
Mechanical Specifications – CSRF2010
Mechanical Specifications – CSRF1206 and CSRF2512
0.122 ± 0.008 0.061 ± 0.008 0.031 ± 0.006 0.020 ± 0.008 0.022 ± 0.008
inches
3.10 ± 0.20 1.55 ± 0.20 0.80 ± 0.15 0.50 ± 0.20 0.55 ± 0.20
mm
0.254 ± 0.008 0.128 ± 0.008 0.031 ± 0.006 0.035 ± 0.010 0.043 ± 0.010
inches
6.45 ± 0.20 3.25 ± 0.20 0.80 ± 0.15 0.90 ± 0.25 1.10 ± 0.25
mm
CSRF1206
CSRF2512
B
Unit
Body Length
Body Width
Body Height
Bottom Termination
Type / Code
L
W
t
A
Top Termination
0.063 ± 0.008 0.126 ± 0.008 0.024 ± 0.008 0.012 ± 0.008
inches
1.60 ± 0.20 3.20 ± 0.20 0.60 ± 0.20 0.30 ± 0.20
mm
A
Unit
Body Length
Body Width
Body Height
Bottom Termination
CSRF0612
Type / Code
L
W
t
CSRF2010 0.197 ± 0.008 0.098 ± 0.008 0.030 ± 0.008 0.063 ± 0.008 inches
<0.005Ω 5.00 ± 0.20 2.50 ± 0.20 0.75 ± 0.20 1.60 ± 0.20 mm
CSRF2010 0.197 ± 0.008 0.098 ± 0.008 0.030 ± 0.008 0.024 ± 0.008 inches
≥0.005Ω 5.00 ± 0.20 2.50 ± 0.20 0.75 ± 0.20 0.60 ± 0.20 mm
Type / Code
L
W
H
A
Unit
Body Length
Body Width
Body Height
Bottom Termination
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Power Derating Curve:
Mechanical Specifications – CSRF4320
Performance Characteristics
0170ºC
160
180
Terminal Temperature (ºC)
125ºC
-60
0
20
40
60
80
100
120
140
Percent Rated Power (%)
100
-55ºC
70ºC
100°C
80
60
40
20
2010
All others
0.433 ± 0.008 0.197 ± 0.008 0.026 ± 0.008 0.093 ± 0.012
inches
11.00 ± 0.20 5.00 ± 0.20 0.65 ± 0.20 2.36 ± 0.30
mm
CSRF4320
L
W
t
Type / Code
A
Unit
Body Length
Body Width
Body Height
Bottom Termination
Test Test Method Test Specification Typical Test Condition
RCWV at 70°C; 1.5 hours "ON"; 0.5 hour "OFF"
Total 1000 ± 24 hours
High Temperature Exposure ±1% ≤ 0.2% 125ºC, 1000 hours
Moisture Resistance MIL- STD-202F-Method 106G ±1% ≤ 0.5%
±1%
minimum 95%
coverage
Temperature: 5~35°C. Humidity: 40~75%
Insulation Resistance
Thermal Shock
Short Time Overload
MIL-STD-202F-Method 107G
JIS-C-5202-5.5
MIL-STD-202F-Method 302
-55°C to 150°C, 100 cycles
Size 0805-HP: 2.5 X rated power for 5 seconds
Size 4320: 3 X rated power for 5 seconds
All other sizes: 5 X rated power for 5 seconds
Apply 100Vdc for 1 minute
1MΩ minimum
≤ 0.3%
Storage Conditions:
≥ 1MΩ
Solderability
Resistance to Soldering Heat
MIL-STD-202F-Method 210E
MIL-STD-202F-Method 208H
260 ± 5°C for 10 ± 1 seconds
245 ± 5°C for 2 ± 0.5 seconds
≤ 0.3%
±1%
±1%
> 95%
≤ 0.3%
Load Life
MIL-STD-202F-Method 108A
±1%
≤ 0.5%
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Taping Specifications – Paper Tape
Taping Specifications – Embossed Plastic Tape
Type / Code Unit
0.028 ± 0.002 0.047 ± 0.002 0.069 ± 0.004 0.138 ± 0.002 0.315 ± 0.008 Inches
0.70 ± 0.05 1.20 ± 0.05 1.75 ± 0.10 3.50 ± 0.05 8.00 ± 0.20 mm
0.043 ± 0.004 0.075 ± 0.004 0.069 ± 0.004 0.138 ± 0.002 0.315 ± 0.008 Inches
1.10 ± 0.10 1.90 ± 0.10 1.75 ± 0.10 3.50 ± 0.05 8.00 ± 0.20 mm
0.063 ± 0.004 0.094 ± 0.004 0.069 ± 0.004 0.138 ± 0.002 0.315 ± 0.008 Inches
1.60 ± 0.10 2.40 ± 0.10 1.75 ± 0.10 3.50 ± 0.05 8.00 ± 0.20 mm
0.079 ± 0.004 0.142 ± 0.004 0.069 ± 0.004 0.138 ± 0.002 0.315 ± 0.008 Inches
2.00 ± 0.10 3.60 ± 0.10 1.75 ± 0.10 3.50 ± 0.05 8.00 ± 0.20 mm
0.079 ± 0.004 0.142 ± 0.004 0.069 ± 0.004 0.138 ± 0.002 0.315 ± 0.008 Inches
2.00 ± 0.10 3.60 ± 0.10 1.75 ± 0.10 3.50 ± 0.05 8.00 ± 0.20 mm
CSRF0603
A
B
CSRF1206
CSRF0612
CSRF0402
E
F
W
CSRF0805
Type / Code Unit
0.157 ± 0.004 0.079 ± 0.004 0.079 ± 0.002 0.061 ± 0.002 0.024 ± 0.004 Inches
4.00 ± 0.10 2.00 ± 0.10 2.00 ± 0.05 1.55 ± 0.05 0.60 ± 0.10 mm
0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.002 0.061 ± 0.002 0.028 ± 0.004 Inches
4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 1.55 ± 0.05 0.70 ± 0.10 mm
0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.002 0.061 ± 0.002 0.038 ± 0.004 Inches
4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 1.55 ± 0.05 0.97 ± 0.10 mm
0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.002 0.061 ± 0.002 0.038 ± 0.004 Inches
4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 1.55 ± 0.05 0.97 ± 0.10 mm
0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.002 0.061 ± 0.002 0.038 ± 0.004 Inches
4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 1.55 ± 0.05 0.97 ± 0.10 mm
CSRF0612
CSRF0603
CSRF0805
P0
P1
CSRF0402
CSRF1206
D0
T
P2
Type / Code Unit
0.110 ±0.006 0.217 ±0.006 0.069 ±0.004 0.217 ±0.002 0.472 ±0.012 Inches
2.80 ±0.15 5.50 ±0.15 1.75 ±0.10 5.50 ±0.05 12.00 ±0.30 mm
0.138 ±0.004 0.268 ±0.004 0.069 ±0.004 0.217 ±0.002 0.472 ±0.008 Inches
3.50 ±0.10 6.80 ±0.10 1.75 ±0.10 5.50 ±0.05 12.00 ±0.20 mm
Type / Code Unit
0.157 ±0.004 0.157 ±0.004 0.079 ±0.002 0.059 ±0.004 0.033 ±0.008 Inches
4.00 ±0.10 4.00 ±0.10 2.00 ±0.05 1.50
± 0.1
0.10 0.84 ±0.20 mm
0.157 ±0.002 0.157 ±0.004 0.079 ±0.002 0.059 ±0.004 0.039 ±0.008 Inches
4.00 ±0.05 4.00 ±0.10 2.00 ±0.05 1.50 ±0.10 1.00 ±0.20 mm
CSRF2512
W
CSRF2010
A
B
CSRF2010
CSRF2512
P0
E
F
P1
P2
D0
T
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Recommended Pad Layouts - CSRF
Taping Specifications – Embossed Plastic Tape
Type / Code Unit
0.211 ± 0.004 0.462 ± 0.004 0.069 ± 0.004 0.453 ± 0.004 0.945 ± 0.012 0.157 ± 0.004 Inches
5.36 ± 0.10 11.74 ± 0.10 1.75 ± 0.10 11.50 ± 0.10 24.00 ± 0.30 4.00 ± 0.10 mm
Type / Code Unit
0.315 ± 0.004 0.079 ± 0.004 0.059 ± 0.004 0.059 ± 0.010 0.013 ± 0.004 0.077 ± 0.004 Inches
8.00 ± 0.10 2.00 ± 0.10 1.50 ± 0.10 1.50 ± 0.25 0.33 ± 0.10 1.96 ± 0.10 mm
CSRF4320
D0
D1
T1
T2
P1
P2
CSRF4320
W
P0
A
B
E
F
Size a b c Unit
0.012 0.024 0.024 inches
0.30 0.60 0.60 mm
CSRF0402 0.020 0.020 0.024 inches
0.008Ω - 0.02Ω 0.50 0.50 0.60 mm
CSRF0603 0.014 0.043 0.039 inches
0.002Ω - 0.004Ω 0.35 1.10 1.00 mm
CSRF0603 0.024 0.035 0.039 inches
0.005Ω - 0.009Ω 0.60 0.90 1.00 mm
CSRF0603 0.035 0.028 0.039 inches
0.01Ω - 0.03Ω 0.90 0.70 1.00 mm
0.047 0.047 0.055 inches
1.20 1.20 1.40 mm
0.087 0.051 0.071 inches
2.20 1.30 1.80 mm
0.024 0.051 0.142 inches
0.60 1.30 3.60 mm
CSRF2010 0.063 0.093 0.114 inches
0.003Ω - 0.009Ω 1.60 2.35 2.90 mm
CSRF2010 0.106 0.071 0.114 inches
0.01Ω - 0.1Ω 2.70 1.80 2.90 mm
0.150 0.083 0.134 inches
3.80 2.10 3.40 mm
0.157 0.197 0.276 inches
4.00 5.00 7.00 mm
CSRF0612
CSRF4320
CSRF2512
CSRF0402
0.003Ω - 0.007Ω
CSRF1206
CSRF0805
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Soldering Recommendations:
• Peak reflow temperatures and durations:
o IR Reflow Peak = 260°C max for 10 seconds
o Wave Solder = 260°C max for 10 seconds
• Compatible with lead and lead-free solder reflow process
• Recommended IR Reflow Profile:
High Power Chip Resistors and Thermal Management
Stackpole has developed several surface mount resistor series in addition to our current sense resistors, which have had
higher power ratings than standard resistor chips. This has caused some uncertainty and even confusion by users as to
how to reliably use these resistors at the higher power ratings in their designs.
The data sheets for the RHC, RMCP, RNCP, CSR, CSRN, CSRF, CSS, and CSSH state that the rated power assumes
an ambient temperature of no more than 100ºC for the CSS / CSSH series and 70ºC for all other high power resistor
series. In addition, IPC and UL best practices dictate that the combined temperature on any resistor due to power
dissipated and ambient air shall be no more than 105ºC. At first glance this wouldn’t seem too difficult, however the graph
below shows typical heat rise for the CSR1206 100 milliohm at full rated power. The heat rise for the RMCP and RNCP
would be similar. The RHC with its unique materials, design, and processes would have less heat rise and therefore
would be easier to implement for any given customer.
Recommended Pad Layouts – CSRF-HP
Size a b c Unit
0.008 0.031 0.024 inches
0.20 0.80 0.60 mm
CSRF0603…-HP 0.024 0.035 0.039 inches
0.005Ω - 0.009Ω 0.60 0.90 1.00 mm
CSRF0603…-HP 0.035 0.028 0.039 inches
0.01Ω - 0.03Ω 0.90 0.70 1.00 mm
0.047 0.047 0.055 inches
1.20 1.20 1.40 mm
CSRF0402…-HP
CSRF0805…-HP
Rev Date: 05/28/2019 9 www.seielect.com
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The 102ºC heat rise shown here would indicate there will be additional thermal reduction techniques needed to keep this
part under 105ºC total hot spot temperature if this part is to be used at 0.75 watts of power. However, this same part at
the usual power rating for this size would have a heat rise of around 72ºC. This additional heat rise may be dealt with
using wider conductor traces, larger solder pads and land patterns under the solder mask, heavier copper in the
conductors, vias through PCB, air movement, and heat sinks, among many other techniques. Because of the variety of
methods customers can use to lower the effective heat rise of the circuit, resistor manufacturers simply specify power
ratings with the limitations on ambient air temperature and total hot spot temperatures and leave the details of how to best
accomplish this to the design engineers. Design guidelines for products in various market segments can vary widely so
it would be unnecessarily constraining for a resistor manufacturer to recommend the use of any of these methods over
another.
Note: The final resistance value can be affected by the board layout and assembly process, especially the size of the mounting pads and the amount
of solder used. This is especially notable for resistance values ≤ 50mΩ. This should be taken into account when designing.
RoHS Compliance
Stackpole Electronics has joined the worldwide effort to reduce the amount of lead in electronic components and to meet the various
regulatory requirements now prevalent, such as the European Union’s directive regarding “Restrictions on Hazardous Substances”
(RoHS 3). As part of this ongoing program, we periodically update this document with the status regarding the availability of our
compliant components. All our standard part numbers are compliant to EU Directive 2011/65/EU of the European Parliament as
amended by Directive (EU) 2015/863/EU as regards the list of restricted substances.
“Conflict Metals” Commitment
We at Stackpole Electronics, Inc. are joined with our industry in opposing the use of metals mined in the “conflict region” of the eastern
Democratic Republic of the Congo (DRC) in our products. Recognizing that the supply chain for metals used in the electronics industry
is very complex, we work closely with our own suppliers to verify to the extent possible that the materials and products we supply do
not contain metals sourced from this conflict region. As such, we are in compliance with the requirements of Dodd-Frank Act regarding
Conflict Minerals.
RoHS Compliance Status
CSRF
Foil on Ceramic Current Sensing
Surface Mount Chip Resistor
SMD YES 100% Matte Sn over Ni Jul-04 04/27
Lead-Free
Effective Date
Code
(YY/WW)
Standard
Product
Series
Description
Package /
Termination
Type
Standard
Series
RoHS
Compliant
Lead-Free Termination
Composition
Lead-Free
Mfg. Effective Date
(Std Product Series)
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Compliance to “REACH”
We certify that all passive components supplied by Stackpole Electronics, Inc. are SVHC (Substances of Very High Concern) free and
compliant with the requirements of EU Directive 1907/2006/EC, “The Registration, Evaluation, Authorization and Restriction of
Chemicals”, otherwise referred to as REACH. Contact us for complete list of REACH Substance Candidate List.
Environmental Policy
It is the policy of Stackpole Electronics, Inc. (SEI) to protect the environment in all localities in which we operate. We continually strive
to improve our effect on the environment. We observe all applicable laws and regulations regarding the protection of our environment
and all requests related to the environment to which we have agreed. We are committed to the prevention of all forms of pollution.
How to Order
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
C S R F 0 4 0 2 F T 8 L 0 0 - H P
Code Code Code Tol Code Quantity Code Description
CSRF 0402 F1% 10,000 -HP High Power
0402(HP) J 5%
0603
0603(HP) 4,000
0805
2,000
0805(HP)
2,000
1206
0612
2010
2512
4320
5W
2W
1W
1W
1.5W
Special
Size
0402
0.1 ohm = R100
0.005 ohm = 5L00
0.01 ohm = 10L0
Four characters with the
multiplier used as the
decimal holder.
"L" used as multiplier
of 10-3 for any value
under 0.1 ohm..
0603, 0805
0612, 1206
5,000
2010
4320
2512
Product Series
Power
Tolerance
Resistance Value
Packaging
Size
Description
Foil / Ceramic
0.25W
0.125W
Description
0.5W
0.25W
0.5W
Embossed
Plastic Tape
T
7" Reel
Paper Tape
1W
