Opto-TRIAC driver (MOC3063, MOC3021)
MOC3063 · LED-triggered TRIAC output for driving a power TRIAC gate · trigger at 5 mA LED current · zero-cross: only switches on when the mains voltage is below 20 V · 7.5 kV isolation
Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Pins
- 1 Anode
- 2 Cathode
- 3 NC
- 4 MT1
- 5 NC (substrate)
- 6 MT2
Ratings and limits
| Trigger | 5 mA |
|---|---|
| Output | 600 V, 1 A pulse |
| Switching | zero-cross only |
How to use it
Its tiny TRIAC fires a power TRIAC’s gate from an isolated LED: a solid-state relay. Zero-cross versions switch only near 0 V, so there is no inrush or interference.