TRIAC1A

by MARLYNZ.
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2 layer board of 0.98x0.71 inches (24.79x17.96 mm).
Shared on November 23rd, 2014 17:20.

  • Single Triac w/ Opto driver for uC interface
  • Q1 ……… MMBT3904 (or SOT-23 equiv. )
  • Opto1 …. MOC3062 ( or DIP-6 equiv. )
  • L1,R5 …. 33uH, 33 ohm (optional RFC - use jumper wire to bypass)
  • C1,R6 …. 0.1uF/250V, 39 ohm
  • R5 …….. 10
  • R2 …….. 220
  • R1,R4 …. 1K
  • R3 …….. 3.3K
  • TO-220 Triac pads are for top-view orientation : A1-A2-Gate
  • J1 …….. 1) Gnd., 2) On/Off, 3)V+ (5-12V)
  • Note: R2 is emitter-follower. Size for desired LED drive current.
  • I.e., if driving `On/Off' with 3.3V and you want 10mA then -> (3.3 - .6(be)) / .01A = 270.
  • and… HEATSINK that triac! :-)

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