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Vishay’s New LPSxxx Thick Film Power Resistors Feature Power Dissipation of 300 W, 600 W, and 800 W at + 85 °C in Compact 57-mm by 60-mm Footprint
Non-Inductive Devices Offer Resistance Range From 0.3 Ω to 900 kΩ and Dielectric Strength up to 12 kV RMS
MALVERN, PENNSYLVANIA — May 27, 2009 — Vishay Intertechnology, Inc. (NYSE: VSH) today released new 300-W, 600-W, and 800-W thick film power resistors featuring a small size and a broad range of resistance values.
The new Vishay Sfernice LPS300, LPS600, and LPS800 thick film resistors are non-inductive (< 0.1 μH) and provide a wide resistance range of 0.3 Ω to 900 kΩ. Featuring compact footprints of 57-mm by 60-mm and low weight of 83 grams, the devices save valuable space on the circuit board, allowing designers to reduce the size of their end products.
With their high power capabilities and high dielectric strength of 12 kVRMS, the devices released today are intended for power supply, inverter, converter, snubber, and discharge resistor applications in windmills, trains, scanner and X-ray tables, and large UPS drives.
Thermal resistance for the LPSxxx resistors at rated power and + 85 °C is 0.112 °C/W junction-to-case. The devices feature a standard temperature coefficient of ± 150 ppm/°C for values above 10 Ω and tolerances from ± 1 % to ± 10 %. The RoHS-compliant resistors offer high-temperature performance from − 55 °C to + 120 °C (LPS300), + 155 °C (LPS600), and + 175 °C (LPS800).
Samples and production quantities of the LPSxxx high-power thick film resistors are available now, with lead times of eight to 10 weeks for larger orders.
Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers
of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors,
and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial,
computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay’s product
innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can
be found on the Internet at www.vishay.com.
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