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AC Power Relays

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Replace electromechanical relays while eliminating the need for optocouplers, TRIACs, and snubber diodes by choosing ac power relays for alternating current load switching. OptoMOS® ac relays produced by Littelfuse use dual-power silicon controlled rectifier (SCR) thyristors to allow smooth switching with minimal electromagnetic interference. We make zero-cross and rapid turn-on ac power relays. Both types can mount on heat sinks via direct copper bond ceramic substrates. You will find our normally open ac relays in motor controls, HVAC units, lighting arrays, heaters, and gas pumps.
  • Available with blocking voltage (VP) ratings from 400 V to 800 V
  • Available with load current ratings (Irms) in free air from 250 mA to 5 A
  • Use of heat sinks increases load current ratings range
  • Handle frequencies in the range of 20 Hz to 500 Hz
  • UL-recognized
  • Available with four, six, or eight pins
  • Low drive current requirements
  • Optically isolated components with galvanic input-to-output isolation
  • High noise immunity

AC Power Relays Parts

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AC Power Relays Applications

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2/3-Wheeler Energy Storage

Littelfuse provides advanced circuit protection and sensing solutions for Li-ion battery systems in two-and three-wheeler electric vehicles. This

Ac Power Relays Resources