The Vishay Dale WSR series Power Metal Strip resistors are designed for low resistance applications down to 0.001 ohms. Featuring molded high-temperature encapsulation and welded construction, these resistors are ideal for current sensing, voltage division, pulse, switching, and linear power supplies. They have very low inductance (0.5 to 5 nH), low thermal EMF (< 3 µV/°C), and excellent frequency response up to 50 MHz. Qualified to AEC-Q200, they offer high stability and reliability for industrial and automotive applications.
Vishay WSR3R0400FEA Power Metal Strip Resistor Specifications:
Resistance Range: 0.005 to 1.0 Ω (WSR2), 0.005 to 0.2 Ω (WSR3)
Power Rating: 2W (WSR2), 3W (WSR3)
Resistance Tolerance: ±0.5%, ±1.0%
Resistance Value: 0.001 Ω to 1.0 Ω (WSR2), 0.001 Ω to 0.2 Ω (WSR3)
Temperature Coefficient: <20 ppm/°C
Operating Temperature Range: -65°C to +275°C
Max Working Voltage: 500 V (typical)
Inductance: 0.5 to 5 nH
Frequency Response: Up to 50 MHz
Material: Nickel-chrome or manganese-copper alloy resistive element
RoHS Compliant: Yes (except lead terminations)
Physical Dimensions: Length 0.455 inches (WSR2), 0.455 inches (WSR3); Width approximately 0.275 inches; Height approximately 0.095 inches
Packaging: Tape/Reel (24 mm width, 1500 pieces per reel)
Buy the Vishay WSR3 – Reliable Low Resistance for Industrial Applications
Enhance your electronic designs with Vishay WSR3 resistors, offering low resistance values down to 0.001 ohms, excellent thermal stability, and high-frequency response. Perfect for current sensing, voltage division, and pulse applications in industrial, automotive, and high-power environments. Their welded construction and molded encapsulation ensure durability and reliability under demanding conditions. Available in tape and reel packaging for easy automation, these resistors are RoHS compliant, meet AEC-Q200 standards, and deliver consistent precision in both linear and switching power supply circuits.
Buy Vishay WSR3 resistors now and experience unmatched stability, low inductance, and high-frequency performance for demanding power and sensing circuits.
Frequently Asked Questions
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