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Introduction, characteristics, and applications of Vishay WFK metal foil current sensing resistors

2/9/2024 9:10:27 AM

Summary: Using a four-terminal design, it has an ultra-low sensing resistance range of 1 milliohm to 10 milliohms.

Vishay WFK metal foil current sensing resistors

Vishay WFK metal foil current sensing resistors feature a 4-terminal design with an ultra-low sensing resistance range of 1 milliohm to 10 milliohms. These resistors offer low temperature coefficient of resistance (TCR) as low as 100ppm/°C. WFK current sense resistors are sulfur resistant, available in 0612 package sizes, rated at 1W and have a tolerance of ±1%. These metal foil current sense resistors operate over the -55°C to 170°C temperature range. WFK current sense resistors are ideal for switching power supplies, voltage regulator modules, DC/DC converters, adapters, battery packs, chargers, mobile phones and power management.


characteristic

  • 4-terminal design

  • Ultra-low sensing resistance

  • 1W rated power

  • 1 milliohm ~ 10 milliohm range

  • Low TCR (as low as 100ppm/°C)

  • Sulfur resistant

  • 0612 Packing size

  • 7.4g/1000 pieces weight (typical)


app

  • switching power supply

  • Voltage stabilizing module

  • Power management

  • Tablets and phones

  • DC/DC converters, adapters, battery packs and chargers


dimension


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