TRIAC (BT136-600E, BT136, BTA16)
BT136-600E · 4 A · 600 V · conducts both ways once the gate fires · gate trigger 10 mA · turns off at each zero crossing

Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Pins
- MT1
- MT2
- G (gate)
Ratings and limits
| V_DRM | 600 V |
|---|---|
| I_T(RMS) | 4 A |
| I_GT | 10 mA |
| I_H | 10 mA |
How to use it
Two SCRs back to back with one gate: switches AC. Fire it later in each half-cycle and the lamp gets less power (phase-angle dimming).