CSR/CSRN Series
Thick Film Current Sensing Resistor
Features:
•
•
•
•
•
•
Stackpole Electronics, Inc.
Resistive Product Solutions
0402 to 1225 sizes available
Power ratings to 3W
Low inductance – less than 0.2nH typically
RoHS compliant and halogen-free
Non-standard resistance values available
0815, 2010 and 2512 sizes available with narrow
terminations (CSRN)
Electrical Specifications - CSR
Type / Code
CSR0402
CSR0603
CSR0805
CSR1206
Power Rating (Watts)
@ 70ºC
0.125W
0.125W
0.25W
0.5W
Dielectric Withstanding
Voltage
200V
200V
200V
200V
Resistance
Temperature
Coefficient
±200 ppm/ºC
±300 ppm/ºC
±200 ppm/ºC
±100 ppm/ºC
±600 ppm/ºC
±400 ppm/ºC
±300 ppm/ºC
(1)
Ohmic Range (Ω) and Tolerance
1%
0.05 - 1
0.02 - 1
0.02 - 1
0.01 - 1
0.01 - 0.02
0.021 - 0.05
0.051 - 0.099
0.1 - 1
-
0.001 - 0.004
0.005 - 0.01
0.011 - 0.35
0.01 - 1
0.01 - 1
0.003 - 0.005
0.006 - 0.02
0.021 - 0.03
0.033 - 8
2%, 5%
CSR1210
0.5W
200V
±200 ppm/ºC
CSR0830
CSR2010
CSR2512
2W
1W
2W
200V
200V
200V
±300 ppm/ºC
±200 ppm/ºC
±150 ppm/ºC
±100 ppm/ºC
(1)
±200 ppm/ºC
±300 ppm/ºC
±200 ppm/ºC
±150 ppm/ºC
±100 ppm/ºC
CSR1225
3W
200V
(1) Contact Factory for TCR below 50mOhm
Electrical Specifications – CSRN (Narrow Termination)
Type / Code
Power Rating (Watts)
@ 70ºC
1W
1W
2W
Dielectric Withstanding
Voltage
200V
200V
200V
Resistance
Temperature
Coefficient
±300 ppm/ºC
±150 ppm/ºC
±250 ppm/ºC
±200 ppm/ºC
Ohmic Range (Ω) and Tolerance
1%
0.01 - 0.019
0.02 - 0.5
0.01 - 1
0.01 - 1
2%, 5%
CSRN0815
CSRN2010
CSRN2512
(*) AEC-Q200 Qualified
(*)
Electrical Specifications – CSR-HP (High Power)
Type / Code
Power Rating (Watts)
@ 70ºC
0.2W
Dielectric Withstanding
Voltage
200V
Resistance
Temperature
Coefficient
±400 ppm/ºC
±300 ppm/ºC
±200 ppm/ºC
±600 ppm/ºC
±400 ppm/ºC
±300 ppm/ºC
±200 ppm/ºC
Ohmic Range (Ω) and Tolerance
1%, 2%, 5%
0.051 - 0.1
0.102 - 0.5
0.51 - 1
0.01 - 0.02
0.021 - 0.05
0.051 - 0.091
0.1 - 1
CSR0603…-HP
CSR1210…-HP
0.75W
200V
Please refer to the High Power Resistor Application Note (page 5) for more information on designing and implementing high power
resistor types.
Rev Date: 10/18/2018
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
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CSR/CSRN Series
Thick Film Current Sensing Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Mechanical Specifications
Type / Code
CSR0402
CSR0603
CSR0805
CSR1206
CSR1210
CSR0830
CSR2010
CSR2512
L
Body Length
0.039 ± 0.002
1.00 ± 0.05
0.063 ± 0.004
1.60 ± 0.10
0.079 ± 0.006
2.00 ± 0.15
0.120 ± 0.006
3.05 ± 0.15
0.122 ± 0.004
3.10 ± 0.10
0.079 ± 0.008
2.00 ± 0.20
0.197 ± 0.008
5.00 ± 0.20
0.252 ± 0.008
6.40 ± 0.20
W
Body Width
0.020 ± 0.002
0.50 ± 0.05
0.031 ± 0.004
0.80 ± 0.10
0.049 ± 0.006
1.25 ± 0.15
0.061 ± 0.006
1.55 ± 0.15
0.102 ± 0.006
2.60 ± 0.15
0.295 ± 0.012
7.50 ± 0.30
0.100 ± 0.008
2.54 ± 0.20
0.126 ± 0.008
3.20 ± 0.20
H
Body Height
0.013 ± 0.004
0.32 ± 0.10
0.018 ± 0.004
0.45 ± 0.10
0.022 ± 0.004
0.55 ± 0.10
0.022 ± 0.004
0.55 ± 0.10
0.022 ± 0.004
0.55 ± 0.10
0.024 ± 0.004
0.60 ± 0.10
0.020 ± 0.006
0.50 ± 0.15
0.020 ± 0.006
0.50 ± 0.15
a
Top Termination
0.010 ± 0.004
0.25 ± 0.10
0.012 ± 0.008
0.30 ± 0.20
0.012 ± 0.008
0.30 ± 0.20
0.020 ± 0.012
0.50 ± 0.30
0.020 ± 0.012
0.50 ± 0.30
0.016 ± 0.008
0.40 ± 0.20
0.068 ± 0.006
1.72 ± 0.15
0.075 ± 0.006
1.90 ± 0.15
b
Bottom Termination
0.008 ± 0.004
0.20 ± 0.10
0.012 ± 0.008
0.30 ± 0.20
0.016 ± 0.010
0.40 ± 0.25
0.016 ± 0.010
0.40 ± 0.25
0.020 ± 0.010
0.50 ± 0.25
0.016 ± 0.008
0.40 ± 0.20
0.067 ± 0.006
1.70 ± 0.15
0.075 ± 0.006
1.90 ± 0.15
Unit
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
Mechanical Specifications – CSRN (Narrow Termination)
Type / Code
CSRN0815
CSRN2010
CSRN2512
L
Body Length
0.079 ± 0.008
2.00 ± 0.20
0.197 ± 0.008
5.00 ± 0.20
0.250 ± 0.008
6.35 ± 0.20
W
Body Width
0.148 ± 0.008
3.75 ± 0.20
0.096 ± 0.006
2.45 ± 0.15
0.124 ± 0.006
3.15 ± 0.15
H
Body Height
0.024 ± 0.004
0.60 ± 0.10
0.024 ± 0.006
0.60 ± 0.15
0.024 ± 0.004
0.60 ± 0.10
a
Top Termination
0.016 ± 0.008
0.40 ± 0.20
0.024 ± 0.012
0.60 ± 0.30
0.024 ± 0.012
0.60 ± 0.30
b
Bottom Termination
0.016 ± 0.008
0.40 ± 0.20
0.020 ± 0.010
0.50 ± 0.25
0.022 ± 0.010
0.55 ± 0.25
Unit
inches
mm
inches
mm
inches
mm
Mechanical Specifications – CSR1225
Type / Code
CSR1225
A
0.024 ± 0.012
0.60 ± 0.30
B
0.254 ± 0.006
6.45 ± 0.15
C
0.126 ± 0.006
3.20 ± 0.15
D
0.031 ± 0.010
0.80 ± 0.25
E
0.035 ± 0.006
0.90 ± 0.15
F
0.090 ± 0.005
2.29 ± 0.13
Unit
inches
mm
Rev Date: 10/18/2018
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
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CSR/CSRN Series
Thick Film Current Sensing Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Recommended Pad Layouts - CSR
Type / Code
CSR0402
CSR0603
CSR0805
CSR1206
CSR1210
CSR0830
CSR2010
CSR2512
CSR1225
A
0.020
0.50
0.031
0.80
0.039
1.00
0.079
2.00
0.079
2.00
0.039
1.00
0.142
3.60
0.193
4.90
0.047
1.20
B
0.020
0.50
0.039
1.00
0.039
1.00
0.045
1.15
0.045
1.15
0.071
1.80
0.055
1.40
0.063
1.60
0.079
2.00
0.024
0.60
0.035
0.90
0.053
1.35
0.067
1.70
0.098
2.50
0.299
7.60
0.098
2.50
0.126
3.20
0.276
7.00
C
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
0.008
0.20
0.008
0.20
0.008
0.20
0.008
0.20
0.008
0.20
0.008
0.20
0.008
0.20
0.008
0.20
0.008
0.20
Unit
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
Recommended Pad Layouts - CSRN
Type / Code
CSRN0815
CSRN2010
CSRN2512
A
0.039
1.00
0.142
3.60
0.193
4.90
B
0.071
1.80
0.055
1.40
0.063
1.60
0.154
3.90
0.098
2.50
0.126
3.20
C
±
±
±
±
±
±
0.008
0.20
0.008
0.20
0.008
0.20
Unit
inches
mm
inches
mm
inches
mm
Performance Characteristics
Test
High Temperature
Exposure
Short Time Overload
Test Method
MIL-STD-202 Method 108
JIS-C-5201-1 4.13
IEC 60115-1 4.13
Test Specification
1% Tol: (±1.0% +0.05Ω)
2%, 5% Tol:(±1.5% +0.10Ω)
±(0.5% +0.05Ω)
±(1.0% +0.05Ω)
For high power rating
1% Tol: (±0.5% +0.05Ω)
2%, 5% Tol:(±1.5% +0.10Ω)
1% Tol: (±1.00% +0.10Ω)
2%, 5% Tol:(±2.00% +0.10Ω)
1% Tol: (±1.00% +0.10Ω)
2%, 5% Tol:(±2.00% +0.10Ω)
--
Typical
≤ 0.5%
≤ 0.25%
RCV(rated current)*2.5 for 5 seconds.
≤ 0.5%
≤ 0.5%
1000 Cycles (-55°C to +125°C) Measurement at
24 ± 4 hours after test conclusion.
30 min maximum dwell time at each temperature
extreme. 1 min. maximum transition time.
1000 hours 85°C/85% RH. Note: Specified conditions:
10% of operating power. Measurement at 24 ± 4
hours after test conclusion.
Condition D Steady State T
A
=125°C at rated power.
Measurement at 24 ± 4 hours after test conclusion.
Electrical test not required. Inspect device
construction, marking and workmanship.
Test Condition
1000 hrs. @ T=155°C. Unpowered. Measurement
at 24 ± 4 hours after test conclusion.
Temperature
Cycling
JESD22 Method JA-104
Biased Humidity
MIL-STD-202 Method 103
≤ 0.5%
≤ 0.5%
Pass
Operational Life
External Visual
MIL-STD-202 Method 108
MIL-STD 883 Method 2009
Rev Date: 10/18/2018
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
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CSR/CSRN Series
Thick Film Current Sensing Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Performance Characteristics (cont.)
Test
Physical
Dimensions
Resistance to
Solvents
Mechanical
Shock
Test Method
JESD22 Method JB-100
MIL-STD 202 Method 215
MIL-STD 202 Method 213
Test Specification
--
Marking unsmeared
1% Tol: (±0.25% +0.05Ω)
2%, 5% Tol:(±1.00% +0.05Ω)
1% Tol: (±0.50% +0.05Ω)
2%, 5% Tol:(±1.00% +0.05Ω)
1% Tol: (±0.50% +0.05Ω)
2%, 5% Tol:(±1.00% +0.05Ω)
Typical
Pass
Pass
≤ 0.5%
Test Condition
Verify physical dimensions to the applicable device
detail specification. Note: User(s) and Suppliers spec.
Electrical test not required.
Note: Aqueous wash chemical - OKEM Clean or
equivalent. Do not use banned solvents.
Figure 1 of Method 213. Condition C.
5 g's for 20 min., 12 cycles each of 3 orientations.
Note: Use 8"X5" PCB 0.031" thick 7 secure points on
one long side and 2 secure points at corners of
opposite sides. Parts mounted within 2" from any
secure point. Test from 10 - 2000 Hz.
Condition B no pre-heat of samples. Note: Single
wave solder - Procedure 2 for SMD.
With the electrometer in direct contact with the
discharge tip, verify the voltage setting at levels
of ±500 V, ±1kV, ±2kV, ±4kV, ±8kV.
The electrometer reading shall be within ±10%
for voltages from 500 V to ≤ 8 kV.
Electrical test not required. Magnification 50X.
Conditions:
SMD:
a) Method B, 4 hrs @ 155°C dry heat @ 235°C.
b) Method B @ 215°C category 3.
c) Method D category 3 @ 260°C.
Parametrically test per lot and sample size
requirements, summary to show Min, Max, Mean and
Standard Deviation at room as well as Min and Max
operating temperatures.
V-0 or V-1 are acceptable.
Electrical test not required.
60 second minimum holding time.
Vibration
MIL-STD 202 Method 204
≤ 0.5%
Resistance to
Soldering Heat
MIL-STD 202 Method 210
≤ 0.5%
ESD
AEC-Q200-002
--
Pass
Solderability
J-STD-002
> 95% Coverage
Pass
Electrical
Characterization
Flammability
Board Flex
User Spec
--
No ignition of tissue or scorching
of pine board.
1% Tol: (±1.00% +0.05Ω)
2%, 5% Tol:(±1.00% +0.05Ω)
None broken
No flame
Pass
UL-94
AEC-Q200-005
Pass
≤ 0.5%
Pass
Pass
Terminal Strength
AEC-Q200-006
(SMD)
Flame
AEC-Q200-001
Retardance
Operating Temperature Range: -55ºC to +155ºC
Power Derating Curve:
Percent Rated Power (%)
100
80
60
40
20
-55ºC
70ºC
155ºC
0
-60
0
20
40
60
80
100
120
140
160
180
Ambient Temperature (ºC)
Rev Date: 10/18/2018
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
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CSR/CSRN Series
Thick Film Current Sensing Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
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 100°C for the CSS / CSSH series and 70°C 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 105°C. At first glance this wouldn’t seem too difficult, however the
graph below shows typical heat rise for the CSR ½ 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.
The 102°C heat rise shown here would indicate there will be additional thermal reduction techniques needed to keep
this part under 105°C 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 72°C. 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, via 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.
Rev Date: 10/18/2018
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
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