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Specifications
Power(Watts):
2W
Resistance:
100mΩ
Temperature Coefficient:
-50ppm/℃~+100ppm/℃
Type:
Current Sense Resistor
Tolerance:
±1%
Mfr. Part #:
SR20-0.10-1%
Package:
SR20
Key Attributes
Model Number:
SR20-0.10-1%
Product Description
Product Overview
Type SR Precision Current Sense Resistors from Caddock Electronics, Inc. are designed for efficient current monitoring and control applications. These non-inductive resistors utilize Caddock's Micronox resistance films to achieve a compact footprint, minimizing circuit board space. Featuring Kelvin terminals for accurate four-wire resistance measurements, they are available in standard resistance values from 0.005 to 1.00, with custom values available for high-quantity applications. The resistors offer a wide operating temperature range of -40C to +150C and are encapsulated in polymer over the resistance element.
Product Attributes
- Brand: Caddock Electronics, Inc.
- Product Type: Precision Current Sense Resistors
- Design: Non-inductive
- Terminal Type: Kelvin Terminals (Four Wire)
- Resistance Film: Micronox
- Encapsulation: Polymer over resistance element
- Origin: USA (implied by contact information)
Technical Specifications
| Specification | Details |
| Models | SR10, SR20 |
| Resistance Range (SR10) | 0.005 to 1.00 |
| Resistance Range (SR20) | 0.008 to 1.00 |
| Standard Resistance Values (SR10) | 0.005, 0.008, 0.010, 0.012, 0.015, 0.020, 0.025, 0.030, 0.033, 0.040, 0.050, 0.075, 0.10, 0.15, 0.20, 0.25, 0.30, 0.40, 0.50, 0.75, 1.00 |
| Standard Resistance Values (SR20) | 0.008, 0.010, 0.012, 0.015, 0.020, 0.025, 0.030, 0.033, 0.040, 0.050, 0.075, 0.10, 0.15, 0.20, 0.25, 0.30, 0.40, 0.50, 0.75, 1.00 |
| Resistance Tolerance | 1% |
| Temperature Coefficient (TC) referenced to +25C |
|
| Load Life | 1000 hours at rated power at +70C, R (0.2 percent + 0.00001 ohm) max. |
| Thermal Shock | Mil-Std-202, Method 107, Cond. A, R (0.2 percent + 0.00001 ohm) max. |
| Moisture Resistance | Mil-Std-202, Method 106, R (0.2 percent + 0.00001 ohm) max. |
| Operating Temperature | -40C to +150C |
| Power Rating at 70C (SR10) | 1.0 Watt |
| Power Rating at 70C (SR20) | 2.0 Watts |
| Voltage Rating (SR10) | V = sqrt(PxR) |
| Voltage Rating (SR20) | V = sqrt(PxR) |
| Dimensions (SR10) |
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| Dimensions (SR20) |
|
| Circuit Board Layout Notes | Traces connecting to current terminals must be sized appropriately for the current flowing through them. |
| Measurement Note | Resistance measurement shall be made using Kelvin connections (four wire) with appropriate current and sense connections to the device terminals. |
2412111204_Caddock-SR20-0-10-1-_C3203377.pdf
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