MOC3032M

Triac, SCR Output Optoisolators Overview

The MOC3032M is a single-channel Triac and SCR output optocoupler manufactured by onsemi, designed for zero-crossing switching applications. It features a PhotoTriac output with an integrated zero-crossing circuit to minimize electromagnetic interference during AC line control. The device utilizes a PDIP-6 through-hole package and provides high isolation capability of 5250 Vrms between input and output circuits. Key electrical parameters include a maximum forward current of 60 mA, a peak repetitive off-state voltage (VDRM) of 250 V, and a maximum trigger current of 10 mA. It operates within a temperature range of -40°C to +85°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry ensures low-noise switching of AC loads.
• High isolation voltage rating supports safe interface between low-voltage logic and high-voltage AC lines.
• Robust PhotoTriac output structure enables reliable triggering of triacs and SCRs.

Triac, SCR Output Optoisolators Applications

• Solid-state relays for industrial automation
• AC power switching controllers in home appliances
• Lighting control systems requiring low EMI

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific ordering suffix against the official onsemi datasheet to confirm package type and compliance status. Ensure that any variant designations match the required insulation and thermal specifications for the target application environment.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing operation is required to reduce electrical noise and stress on AC loads. Consider the 250 V off-state voltage limit and ensure it exceeds the peak line voltage in the application circuit.

Triac, SCR Output Optoisolators Part Context

This part belongs to the MOC303x series of zero-crossing triac driver optocouplers from onsemi. It is distinct from non-zero-crossing variants like the MOC302x series and offers higher sensitivity compared to the MOC3031M, which requires a lower trigger current.

Triac, SCR Output Optoisolators Replacement Considerations

• MOC3032SR2M

Triac, SCR Output Optoisolators FAQ

What is the purpose of the internal zero-crossing circuit?

It detects when the AC line voltage crosses zero and triggers the output only at that point, minimizing inrush current and electromagnetic interference.

Is the MOC3032M suitable for DC load control?

No, the PhotoTriac output is designed specifically for alternating current (AC) applications and cannot effectively switch direct current (DC) loads.