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Vishay Intertechnology Releases Axial Cemented Wirewound Safety Resistor With Surge Withstanding Capability of 2 kV and Fusing Time of < 30 s for 45 W Overload
Device Features Special Cement Coating for Safe and Silent Fusing Operation in Electric Appliances, Energy Meters, and Power Supplies
MALVERN, Pa. — March 4, 2013 — Vishay Intertechnology, Inc. (NYSE: VSH) today introduced a new axial cemented wirewound safety resistor specially designed to ensure safe and silent fusing operation during overload conditions in electric appliances, energy meters, and power supplies. Featuring a fusing time of < 30 s for a 45 W overload and high surge voltage capability, the new Vishay Draloric AC03..CS offers a special cement coating for immediate interruption without flame and explosion when mains voltage (220 Vrms) is applied.
In addition to fusing “without a bang” in electric appliances such as washing machines and shaver chargers, the AC03..CS safety resistor acts as an in-rush current limiting resistor during normal operation. The device’s specially developed lacquer coating matches the thermal and electrical insulating properties of standard silicone cement. This allows designers to meet the requirements for UL approval more easily, while eliminating the need to utilize additional fuses in series with the input resistor.
The AC03..CS features a surge voltage capability of 2 kV (30 pulses/15 min) as per IEC 61000-4-5, with higher surge capability available on request. The resistor provides a power rating of 3 W at an ambient temperature of 40 °C and 2.5 W at 70 °C. The RoHS-compliant device offers resistance from 10 Ω to 100 Ω, resistance tolerance of ± 5 %, and temperature coefficient (TCR) of ± 200 ppm/K.
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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