MOC3021SMT&R

Triac, SCR Output Optoisolators Overview

The MOC3021SMT&R is a surface mount optocoupler manufactured by Isocom Components 2004 LTD. It features a single channel with a triac output configuration designed for non-zero crossing switching applications. The device provides an isolation voltage of 5.3 kV and supports a peak repetitive off-state voltage of 400 V. Packaged in a 6-pin Surface Mount DIP, it accepts a maximum DC forward current of 60 mA.

Triac, SCR Output Optoisolators Feature Summary

• Non-zero crossing triac output architecture
• High voltage isolation capability
• Surface mount package design

Triac, SCR Output Optoisolators Applications

• Solid state relay control circuits
• AC power switching applications
• Industrial motor control systems

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific manufacturer designation when sourcing this component, as distribution channels may list equivalent parts from other manufacturers such as onsemi under similar part numbers. Confirm that the received unit matches the required non-zero crossing characteristic and surface mount package type to ensure circuit compatibility.

Triac, SCR Output Optoisolators Selection Notes

Select this component for applications requiring robust isolation between control logic and high-voltage AC loads. The non-zero crossing feature makes it suitable for general purpose switching where precise timing at the AC waveform zero point is not critical. Ensure the load voltage does not exceed the specified 400 V limit.

Triac, SCR Output Optoisolators Part Context

This device belongs to the family of triac output optoisolators used for interfacing low-power control signals with mains-powered devices. It serves as a standard interface solution in industrial and consumer electronics where electrical isolation is mandatory for safety and noise reduction.

Triac, SCR Output Optoisolators Replacement Considerations

Equivalent parts include the MOC3021M and MOC3023 from various manufacturers. Verify pinout compatibility and isolation voltage ratings before substitution.