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Vishay’s New Thermal Fuses Combine High Currents, Operating Temperatures

Thu, 06/27/2013 - 12:08pm
WDD Staff

Vishay Intertechnology (Malvern, PA) has introduced the industry's first thermal fuses to offer high current capabilities up to 55 A and operation at temperatures up to + 160 °C for 1,000 hours without unexpected breakdown. AEC-Q200-tested, devices in the new Vishay Beyschlag HCTF series provide a safety interrupt of electrical power in high-current automotive applications.

In the case of excess heat in the range of the functioning temperature of +235 °C (± 15 K), HCTF thermal fuses open automatically and disconnect the circuit. Typical applications for HCTF devices include automotive power electronics that can be connected to steady battery power (B+ or terminal number 30), such as control units of fans and pumps for liquid engine cooling, inlet air control units, diesel pre-heaters, engine control units, ABS control units, and diesel heater plug relays. Features include:

  • Robust solid-state design.
  • Low cold resistance of ≤ 0.1 mΩ.
  • Extended reliability at high current loads and ambient temperatures.
  • Rated voltage of 24 V.

For more information, visit www.vishay.com.

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