Vishay Power Metal Plate Current Sense Resistors | Tech Specs
This episode of Tech Specs is part of a video series highlighting the features, applications, and technical specs of newly-released products.
Vishay Power Metal Plate Current Sense Resistors
Vishay’s AEC-Q200 qualified WFM Power Metal Plate current sense resistors are available in 2010 and 2512 case sizes, with power ratings up to 4 watts and resistance values from 10 to 500 milli-ohms.
The low resistance values minimize losses while higher values replace multiple series resistors and reduce measurement error. Values above 33 milli-ohms use a nickel chromium alloy for its high temperature stability and higher element mass, which improves pulse handling capability. The WFM series also includes a copper heat spreader over the resistive element to more efficiently transfer heat into the PCB, enabling the high power density and minimizing hotspots for long term reliability and resistance stability down to 0.1%.
- AEC-Q200 qualified
- 2010 and 2512 size packages
- Power rating: up to 4.0W at 70°C
- Resistance values: 10mΩ to 500mΩ
- NiCrAl element (values >33mΩ) improves thermal stability and pulse handling capability
- Copper heat spreader: efficient heat transfer enables high power rating and long term reliability
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