Triac output without zero-crossing for phase-fired control
The MOC3023SR2VM is a 1-channel optoisolator with a triac output rated for 400 V off-state and 4170 Vrms isolation. The absence of zero-crossing circuitry means this part fires the triac on any phase angle, making it suitable for variable-phase AC loads like lamp dimmers, heater controllers, and soft-start motor drives — not just simple on/off switching.
Package and sourcing reality for BOM fit
Temperature range and approvals for industrial environments
The part carries IEC/EN/DIN and UL approvals, which simplifies safety certification for end equipment sold into European and North American markets. The 100 µA typical holding current keeps the triac latched once fired, preventing premature turn-off on inductive loads.