MOC3063

Triac, SCR Output Optoisolators Overview

The MOC3063 is a single-channel triac and SCR output optocoupler manufactured by Lite-On. It features a zero-crossing detection circuit for low electromagnetic interference switching. The device utilizes a DIP-6 package with through-hole mounting. Key electrical parameters include a maximum forward current of 50 mA, an isolation voltage of 5000 V ac, and a peak off-state voltage of 600 V. Operating temperatures range from -40°C to 100°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry for reduced noise generation during AC power switching
• High isolation voltage capability ensuring safety in high-voltage applications
• Dedicated triac output stage designed for direct driving of power triacs or SCRs

Triac, SCR Output Optoisolators Applications

• Solid state relay (SSR) modules
• AC motor speed control circuits
• Lighting dimmer applications
• Heater control systems

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix variant against the design requirements, as packaging and surface mount options may differ from the standard through-hole DIP configuration. Confirm that the selected component meets the required insulation voltage ratings for the target application's safety standards. Ensure compatibility with the driving logic levels before finalizing the procurement order.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing switching is required to minimize electrical noise and stress on the load. Compare the 600 V peak off-state voltage against the system's line voltage to ensure adequate margin. Consider the thermal dissipation capabilities if operating near the maximum junction temperature limit. Verify package availability matches the PCB assembly method.

Triac, SCR Output Optoisolators Part Context

This part belongs to the MOC3063 series of triac output optocouplers. It is distinct from non-zero-crossing variants like the MOC3021. The series is widely used in industrial control and consumer electronics for isolating low-voltage control signals from high-voltage AC mains. It serves as a critical interface between microcontrollers and power stages.

Triac, SCR Output Optoisolators Replacement Considerations

MOC3063S-TA1

Triac, SCR Output Optoisolators FAQ

Does the MOC3063 include internal zero-crossing detection?

Yes, the MOC3063 integrates a zero-crossing detector that ensures the output triac turns on only when the AC line voltage is near zero.

What is the maximum peak off-state voltage rating?

The device supports a peak off-state voltage (VDRM) of 600 V.