Vishay WSLF Power Metal Strip Resistors feature a proprietary processing technique enabling low resistance values, down to 0.0003Ω. The WSLF resistors are designed to resist sulfur contamination, maintaining performance in high-sulfur environments. These resistors boast low inductance of <2nH and low thermal EMF of less than 3μV/°C. WSLF resistors offer a low-Temperature Coefficient of Resistance (TCR) of less than 20ppm/°C and a power rating range from 3W to 10W. Typical applications include current sensing, pulse applications, and voltage division.
Vishay WSLF Power Metal Strip Resistors
Features
- AEC-Q200 certified
- All-welded construction ideal for current sensing, voltage division, and pulse applications
- Extremely low resistance values down to 0.0003Ω due to proprietary processing technique
- Low thermal electromotive force of less than 3μV/°C
- Solid metal resistive element made from nickel-chrome, manganese-copper, or manganese-copper-tin alloys
- Sulfur-resistant construction suitable for high-sulfur environments
Applications
- Current sensing
- Pulse applications
- Voltage division
Video
This TTI Tech Specs video for Vishay Power Metal Strip Resistors WSLF Series explains that with a power density of 192W per square inch, a single WSLF2512 resistor can handle up to 6W and replace two high-power 2512 resistors.
See video transcript below
Video Transcript
Who doesn’t like the idea of a 2-for-1? There are retailers that base their entire operation on inflating their “normal” price and offering a 2-for-1 just to get people excited about how great of a deal they got. But Vishay’s WSLF Power Metal Strip resistors are the real deal. With a power density of 192W per square inch, a single WSLF2512 resistor can handle up to 6W and replace two high-power 2512 resistors, saving board space on high-power designs.
Vishay offers the WSLF in values as low as 0.3mΩ based on solid metal resistive elements with a low TCR. The AEC-Q200 qualified resistors can operate at up to 170°C and are designed for power management in automotive applications, down-hole test and measurement, HVAC, and servers. They also offer very low inductance and low thermal EMF.