MOC3021XSMT&R

Triac, SCR Output Optoisolators Overview

The MOC3021XSMT&R is a surface mount triac output optocoupler manufactured by Isocom Components. It features a single channel with a photo-triac output and non-zero crossing operation. The device provides an isolation voltage of 5.3 kVrms and supports a peak repetitive off-state voltage of 400 V. It operates within a temperature range of -40 °C to +100 °C. Key electrical parameters include a maximum forward current of 50 mA, a typical input trigger current of 15 mA, and a peak surge current capability of 1 A.

Triac, SCR Output Optoisolators Feature Summary

• Non-zero crossing random phase triac output for precise AC power control
• High isolation voltage rating ensuring safe circuit separation
• Surface mount package design suitable for automated assembly processes

Triac, SCR Output Optoisolators Applications

• Solid state relay driver circuits
• AC motor speed control systems
• Lighting dimmer applications

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix configuration against official Isocom documentation to ensure compatibility with required surface mount packaging standards. Confirm that the non-zero crossing characteristic aligns with the target application's switching requirements. Check for RoHS compliance status as indicated in the manufacturer specifications before finalizing procurement orders.

Triac, SCR Output Optoisolators Selection Notes

Select this component when non-zero crossing switching is acceptable or preferred over zero-crossing variants. Ensure the 400 V blocking voltage meets the load requirements. Verify that the surface mount footprint matches the PCB layout constraints. Consider the thermal performance limits when designing heat dissipation strategies for high-current applications.

Triac, SCR Output Optoisolators Part Context

This part belongs to the MOC3021M series of triac output optocouplers. It serves as a solid-state alternative to mechanical relays in AC switching applications. The device integrates an infrared emitting diode with a photosensitive triac for galvanic isolation. It is designed for reliable operation in industrial and consumer electronic environments requiring compact switching solutions.

Triac, SCR Output Optoisolators Replacement Considerations

The MOC3023XSMT&R is a documented substitute offering similar functionality with different triggering characteristics. Verify pinout compatibility and electrical parameter alignment before substitution. Ensure the replacement part meets the same isolation voltage and temperature range requirements.