4-terminal, 1-W power metal strip resistor in 0612 package size offers low resistance benefits
September 01, 2011 // Paul Buckley
Vishay Intertechnology, Inc., has introduced a new surface-mount power metal strip resistor that the company claims is the industry’s first 4-terminal, 1 W current sensing resistor in the compact 0612 package size to offer a low resistance range from 0.5 mΩ to 5 mΩ.
The small size of the WSK0612 resistor allows it to replace larger current sensing resistors, saving space on the circuit board that in turn will create smaller and lighter products for the consumer. The WSK0612 is intended for current sensing, voltage division, and pulse applications in DC/DC converters for computers, VRMs for laptops, Li-Ion battery safety and management, and LCD TVs; and electronic automotive systems, including engine controls, multi-media electronics, climate controls, and anti-lock brakes.
Manufactured using proprietary techniques that result in extremely low resistance values, the WSK0612 features a durable all-welded construction with a solid metal nickel-chrome or manganese-copper alloy resistive element with low TCR (< 20 ppm/°C). Compliant to RoHS Directive 2002/95/EC, the resistor offers high-temperature performance to + 170 °C and low thermal EMF of < 3 µV/°C.
Samples and production quantities of the new resistor are available now, with a lead time of four to six weeks for larger orders.
Visit Vishay Intertechnology at www.vishay.com
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