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New Vishay Intertechnology 6 W WSLF2512 Power Metal Strip® Resistor Saves Space While Increasing Accuracy and Efficiency
Device Combines High Power Density With Low Resistance and TCR
MALVERN, Pa. — November 9, 2016 — Vishay Intertechnology, Inc. (NYSE: VSH) today announced a new surface-mount Power Metal Strip® current sense resistor that combines a high power rating up to 6 W, TCR down to ± 70 ppm/°, and extremely low resistance values down to 0.0003 Ω in the 2512 case size.
Providing a power density of 192 W/in^2, the Vishay Dale WSLF2512 allows designers to save board space in high-power circuits by utilizing the smallest resistor possible. The device’s low TCR provides stable and accurate current measurement across a wide temperature range, while its low resistance values minimize power losses and improve end product efficiency.
The WSLF2512’s advanced construction incorporates a solid metal nickel-chrome, manganese-copper, or manganese-copper-tin alloy resistive element with low TCR (< 20 ppm/°C). This results in a higher-power resistor in a smaller size that maintains the superior electrical characteristics of the Power Metal Strip construction. A proprietary processing technique produces resistance values ranging from 0.0003 Ω to 0.003 Ω, with tolerances of ± 1.0 % and ± 5.0 %. The device provides low thermal EMF (< 3 µV/°C), very low inductance (< 2 nH), and a temperature range from -65 °C to +170 °C.
The resistor released today is ideal for all types of current sensing, voltage division, and pulse applications in power management for automotive electronic controls such as engine, transmission, anti-lock brakes, audio, and climate controls; inverter controls for down-hole test and measurement equipment and HVAC systems; and VRMs for servers. The device is RoHS-compliant, halogen-free, and Vishay Green.
Samples of the WSLF2512 are available now. Production quantities will be available in November 2016, with a lead time of six to eight weeks for larger orders.
Vishay manufactures one of the world’s largest portfolios of discrete semiconductors and passive electronic components that
are essential to innovative designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace,
and medical markets. Serving customers worldwide, Vishay is The DNA of tech.TM Vishay Intertechnology, Inc. is a Fortune 1,000 Company listed on the NYSE (VSH). More on Vishay at www.vishay.com.