ELM3022(TA)

Triac, SCR Output Optoisolators Overview

The ELM3022(TA) is a Triac output optocoupler manufactured by Everlight Electronics. It features a gallium arsenide infrared LED coupled to a triac detector, providing electrical isolation between control and power circuits. The device offers an isolation voltage of 3750 Vrms and operates within a temperature range of -40°C to 100°C. Key electrical parameters include a forward current of 60 mA, peak off-state voltage of 400 V, and holding current of 10 mA. The component is housed in a 4-SOP surface-mount package.

Triac, SCR Output Optoisolators Feature Summary

• Integrates an infrared LED with a triac detector for zero-crossing detection capabilities
• Provides high-voltage isolation suitable for mains-powered applications
• Designed for direct interface with logic-level inputs

Triac, SCR Output Optoisolators Applications

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

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix TA against the manufacturer's official datasheet to confirm pinout configuration and packaging type. Ensure the procurement source provides valid RoHS compliance documentation. Cross-reference the part number with Everlight's latest product change notifications to confirm active status and material composition updates prior to ordering.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing switching functionality is required to minimize electromagnetic interference during AC load activation. The 4-SOP package is appropriate for automated surface-mount assembly processes. Evaluate the isolation voltage requirements against the system's operating voltage to ensure adequate safety margins for mains-connected designs.

Triac, SCR Output Optoisolators Part Context

This device belongs to Everlight's family of Triac output optocouplers designed for AC power control applications. It serves as a bridge between low-voltage digital logic and high-voltage AC loads. The integration of zero-crossing detection distinguishes it from standard triac optocouplers, offering improved performance in lighting and heating control scenarios.

Triac, SCR Output Optoisolators Replacement Considerations

ELM3023(TA)

Triac, SCR Output Optoisolators FAQ

Does the ELM3022(TA) support zero-crossing detection?

Yes, the device includes internal circuitry for zero-crossing detection to reduce turn-on surge currents.

What is the maximum peak off-state voltage?

The maximum peak off-state voltage is rated at 400 V.