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QUADRAC

QUADRACs
A QUADRAC is a thyristor assembly that handles ac switching. Especially suited to serving as dimmer switches for LED bulbs, QUADRACs combine bidirectional TRIACs (triodes for alternating current) with DIACs (diodes for alternating current). Putting the solid state switches in a single device enhances a circuit’s noise immunity, improves efficiency, and simplifies circuit design.
  • Available with 400 Vdrm/Vrrm and 600drm/Vrrm
  • Minimum of 2.5 kVrms ac isolation between mounting tab and active terminals
  • Typical forward current ratings (It(rms)) of 8 A, 12 A, and 4–15 A
  • Surge capabilities of 200 A to 600 A
  • UL Recognized
  • RoHS compliant
  • Available in alternistor versions that eliminate the need for snubber diodes
  • Available in TO-220 and TO-220AB packages
  • Provide full control of light output at extreme low end of current loads
  • Reduced need for heat sinking
  • Reliable dimming enhances useful lifespans of LEDs

QUADRAC Parts

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QUADRAC Resources