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Series: 2-Form-A

Bidirectional normally open outputs
Product Status| Activei
littelfuse-semiconductor-relays-2-form-a
littelfuse-semiconductor-relays-2-form-a-01-block-diagram
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The OptoMOS® line of solid-state relays uses discrete semiconductor components and the patented OptoMOS® architecture to deliver fast, reliable, bounce-free switching in a compact design. From one of the world's smallest single-pole, 4-pin relays to multi-pole and multi-function devices, OptoMOS® products are an ideal solid-state replacement for larger reed and electromechanical relays. Compared to these old electromagnetic technologies, our OptoMOS® relays offer significantly lower drive current, small package size, no susceptibility to magnetic interaction, and solid-state reliability. All of these are key requirements for the design of today's complex, low-power, multi-channel products.


  • Low drive current
  • High reliability
  • Provides galvanic input to output isolation
  • Low drive current
  • High reliability
  • Provides galvanic input to output isolation

2-Form-A Parts

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2-Form-A Applications

Highlights Section

  • Replace electromechanical relays
  • Replace mechanical switches
  • Implement computer control of electromechanical circuits