MOC3022M

Triac, SCR Output Optoisolators Overview

The MOC3022M is a Triac and SCR output optocoupler manufactured by Lite-On Inc. It features a PhotoTriac output without a zero-crossing circuit, enabling random phase triggering for AC power control applications. The device utilizes a 6-pin PDIP package with through-hole mounting. Key electrical parameters include an isolation voltage of 5300 Vrms, a maximum forward current of 60 mA, and a forward voltage of 1.15 V. It supports a peak repetitive off-state voltage (VDRM) of 400 V and operates within a temperature range of -40°C to +85°C.

Triac, SCR Output Optoisolators Feature Summary

• Random phase triggering capability allows precise control of AC power loads at any point in the sine wave cycle.
• High isolation voltage ensures safe separation between low-voltage control circuits and high-voltage AC mains.
• Integrated PhotoTriac output simplifies interface design for triac and SCR gate driving.

Triac, SCR Output Optoisolators Applications

• Solid state relays
• AC motor speed controls
• Lighting dimmers

Triac, SCR Output Optoisolators Procurement Notes

Verify manufacturer authenticity as onsemi also produces this part number; confirm datasheet source matches required specifications. Check RoHS compliance status via official documentation. Ensure packaging type aligns with assembly requirements. Validate operating temperature range against environmental conditions. Confirm pinout compatibility with existing PCB footprints.

Triac, SCR Output Optoisolators Selection Notes

Select this component when random phase firing is required rather than zero-crossing switching. Suitable for applications needing moderate isolation voltage up to 5300 Vrms. Consider thermal management for power dissipation limits. Verify input current requirements match driver capabilities. Evaluate package constraints for through-hole implementation.

Triac, SCR Output Optoisolators Part Context

Part of the MOC30 series of Triac output optocouplers designed for AC power switching. Differentiates from zero-crossing variants like MOC3021 by allowing immediate turn-on upon signal application. Commonly used in industrial and consumer AC control systems requiring simple galvanic isolation.

Triac, SCR Output Optoisolators Replacement Considerations

MOC3021M serves as a functional substitute if zero-crossing operation is acceptable instead of random phase. Verify pinout and package compatibility before substitution. Check isolation voltage and current ratings to ensure adequate performance margins.

Triac, SCR Output Optoisolators FAQ

Does the MOC3022M include a zero-crossing detection circuit?

No, the MOC3022M is designed for random phase triggering and does not incorporate zero-crossing detection.

What is the maximum isolation voltage rating?

The device provides an isolation voltage of 5300 Vrms between the input LED and the output PhotoTriac.