CSR / CSRN Series — Current Sensing Chip Resistors
Features
• 0402 to 2512 sizes available
• Power ratings to 3W
• Low inductance – less than 0.2nH typically
• RoHS compliant / lead-free
• Non-standard resistance values available
• 2010 and 2512 sizes available with narrow
terminations (CSRN)
Electrical Specifications
Type / Code
Package Type
Power Rating
(Watts) @ 70°C
0.125
0.125
0.250
0.500
1.000
1.000
2.000
2.000
3.000
Dielectric
Withstanding Voltage
200
200
200
200
200
200
200
200
200
Resistance Temperature
Coefficient
±200 ppm/°C
±300 ppm/°C
±200 ppm/°C
±100 ppm/°C *
±100 ppm/°C *
±250 ppm/°C
±200 ppm/°C
±200 ppm/°C
±200 ppm/°C
Ohmic Range and Tolerance
1%
0.051Ω – 1.000Ω
0.021Ω – 1.000Ω
0.021Ω – 1.000Ω
0.010Ω – 1.000Ω
0.010Ω – 1.000Ω
0.010Ω – 1.000Ω
0.010Ω – 1.000Ω
0.010Ω – 1.000Ω
0.005Ω
−
0.200Ω
5%
0.051Ω – 1.000Ω
0.021Ω – 1.000Ω
0.021Ω – 1.000Ω
0.010Ω – 1.000Ω
0.010Ω – 1.000Ω
0.010Ω – 1.000Ω
0.010Ω – 1.000Ω
0.010Ω – 1.000Ω
0.005Ω
−
0.200Ω
CSR 1/8S
CSR 1/8
CSR 1/4
CSR 1/2
CSR 1
CSRN 1
CSR 2
CSRN 2
CSR 3
0402
0603
0805
1206
2010
2010
2512
2512
1225
* Contact factory for TCR on values below 0.05Ω
Performance Characteristics
Test
Moisture Resistance
Load Life
Leach Resistance
Resistance to Soldering Heat
Solderability
Temperature Cycling
Thermal Shock
Short Time Overload
Insulation Resistance
Test Specification
±0.5%
±0.5%
90 seconds min
±0.5%
min 95% coverage
±0.5%
±0.5%
±0.5%
1MΩ minimum
Typical
≤0.5%
≤0.5%
>90
seconds
≤0.25%
≥95%
≤0.5%
≤0.5%
≤0.5%
≥1MΩ
How to Order
CSR
SEI Type
1/2
Code
0.01
Nominal Resistance
1%
Tolerance
R
Packaging
Type
CSR
CSRN
Description
Standard
Narrow Terminations
Code
1/8S
1/8
1/4
1/2
1
2
3
Wattage
0.125
0.125
0.250
0.500
1.000
2.000
3.000
Size
0402
0603
0805
1206
2010
2512
1225
Tolerance
1%
2%
5%
Code
R
R (0402 only)
I
A
Description
7" - Paper
7" - Paper
7" - Paper
Bulk
Pkg Qty
5,000
10,000
1,000
1,000
Toll Free: (888) SEI-SEIS
(888) 734-7347
www.seielect.com
25
email: marketing@seielect.com
CSR / CSRN Series — Current Sensing Chip Resistors
Mechanical Specifications
Type / Code
CSR 1/8S
CSR 1/8
CSR 1/4
CSR 1/2
CSR 1
CSRN 1
CSR 2
CSRN 2
CSR 3
L
Body Length
0.039 ± 0.004
1.0 ± 0.1
0.063 ± 0.004
1.6 ± 0.1
0.079 ± 0.008
2.0 ± 0.2
0.126 ± 0.008
3.20 ± 0.2
0.197 ± 0.008
5.0 ± 0.2
0.197 ± 0.006
5.0 ± 0.15
0.252 ± 0.008
6.4 ± 0.2
0.246 ± 0.006
6.3 ± 0.15
0.121 ± 0.006
3.10 ± 0.15
W
Body Width
0.020 ± 0.004
0.5 ± 0.1
0.032 ± 0.004
0.8 ± 0.1
0.049 ± 0.008
1.25 ± 0.2
0.063 ± 0.008
1.6 ± 0.2
0.100 ± 0.008
2.5 ± 0.2
0.100 ± 0.006
2.5 ± 0.15
0.126 ± 0.008
3.2 ± 0.2
0.121 ± .006
3.1 ± 0.15
0.246 ± 0.006
6.30 ± 0.15
H
Body Height
0.014 ± 0.004
0.35 ± 0.1
0.018 ± 0.004
0.45 ± 0.1
0.016 ± 0.004
0.4 ± 0.1
0.020 ± 0.006
0.50 ± 0.15
0.020 ± 0.006
0.5 ± 0.15
0.024 ± 0.004
0.6 ± 0.1
0.020 ± 0.006
0.5 ± 0.15
0.023 ± .004
0.6 ± 0.10
0.039 ± 0.004
1.00 ± 0.10
a
Top Termination
0.006 ± 0.004
0.15 ± 0.1
0.012 ± 0.008
0.3 ± 0.2
0.016 ± 0.008
0.4 ± 0.2
0.039 ± 0.006
1.0 ± 0.15
0.067 ± 0.006
1.7 ± 0.15
0.024 ± 0.012
0.6 ± 0.3
0.075 ± 0.006
1.9 ± 0.15
0.023 ± .012
0.6 ± 0.3
0.023 ± 0.012
0.060 ± 0.30
b
Bottom Termination
0.006 ± 0.004
0.15 ± 0.1
0.012 ± 0.008
0.3 ± 0.2
0.016 ± 0.008
0.4 ± 0.2
0.039 ± 0.006
1.0 ± 0.15
0.067 ± 0.006
1.7 ± 0.15
0.020 ± 0.010
0.5 ± 0.25
0.075 ± 0.006
1.9 ± 0.15
0.020 ± .010
0.5 ± 0.25
0.02 ± 0.010
0.50 ± 0.25
Units
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
Solder Pad Dimensions
Type / Code
CSR 1/8S
CSR 1/8
CSR 1/4
CSR 1/2
CSRN 1
CSR 1
CSR 2
CSRN 2
CSR 3
L
Total Length
0.049
1.25
0.060
1.50
0.099
2.50
0.158
4.00
0.250
6.35
0.258
6.54
0.315
8.00
0.315
8.00
0.30
7.60
W
Total Width
0.025
0.63
0.035
0.90
0.059
1.50
0.079
2.00
0.145
3.68
0.130
3.30
0.158
4.00
0.158
4.00
0.20
5.08
D
Pad Depth
0.015
0.38
0.020
0.50
0.055
1.40
0.071
1.80
0.055
1.40
0.071
1.80
0.079
2.00
0.055
1.40
0.080
2.00
Units
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
CSR3 (1225)
4 Terminal Bottom
Toll Free: (888) SEI-SEIS
(888) 734-7347
www.seielect.com
26
email: marketing@seielect.com
