Vishay WSLF Power Metal Strip® Resistors are designed for current sensing, voltage division, and pulse applications. The low value (down to 0.0003Ω) surface mount resistors are comprised of solid metal nickel-chrome, manganese-copper, or manganese copper-tin alloy resistive element with low TCR (<20ppm/°C). Features include very low inductance (<2nH) and low thermal EMF (<3μV/°C).
Vishay Vishay WSLF Power Metal Strip® Resistors
Features
- 0.003Ω to 0.0003Ω resistance range
- Very low < 2nH inductance
- Low thermal EMF (< 3μV/°C)
- AEC-Q200 qualified
- All-welded construction
- Solid metal nickel-chrome, manganese-copper, or manganese-copper-tin alloy resistive element with low TCR (< 20ppm/°C)
- Sulfur-resistant construction
- 5W to 6W
- 1% tolerance
Applications
- Current sensing
- Voltage division
- Pulse applications
Video
This TTI Tech Specs video for Vishay Power Metal Strip Resistors WSLF Series explains that with a power density of 192 watts per square inch, a single WSLF2512 resistor can handle up to 6 watts and replace two high power 2512 resistors, saving board space on high power designs. a
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 192 watts per square inch, a single WSLF2512 resistor can handle up to 6 watts and replace two high power 2512 resistors, saving board space on high power designs.
Vishay offers the WSLF in values as low as 0.3 milliohms based on solid metal resistive elements with a low TCR. The AEC-Q200 qualified resistors can operate at up to 170 degrees Celsius 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.