ELM3024(TA)

Triac, SCR Output Optoisolators Overview

The ELM3024(TA) is a Triac and SCR output optocoupler manufactured by Everlight Electronics. It features a random-phase triac driver suitable for AC power control applications. The device provides electrical isolation between input and output circuits with a high isolation voltage rating of 3750Vrms. It is housed in a 4-pin SOP package with a 2.54mm lead pitch, designed for surface mount technology (SMD/SMT) installation. The component integrates an infrared emitting diode on the input side and a photosensitive triac on the output side.

Triac, SCR Output Optoisolators Feature Summary

• Random-phase triac driver capability for AC load control
• High electrical isolation voltage of 3750Vrms
• Integrated infrared LED and photosensitive triac structure
• Surface mount 4-pin SOP package design

Triac, SCR Output Optoisolators Applications

• AC motor speed control systems
• Solid-state relay modules
• Lighting dimmer circuits
• General AC power switching applications

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix designation to ensure compatibility with required packaging formats, as variations such as -V may indicate different reel specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Check current availability constraints, as supply limitations have been noted in distributor records. Ensure the selected variant matches the intended thermal and mechanical requirements for the target PCB layout.

Triac, SCR Output Optoisolators Selection Notes

Select this component when random-phase triggering is required for AC loads, distinguishing it from zero-crossing variants like the ELM3043. The 3750Vrms isolation rating supports high-voltage safety standards in industrial environments. Consider the 4-pin SOP footprint for space-constrained designs requiring SMD assembly. Evaluate the drive current requirements of the internal LED against the available GPIO or driver capabilities in the control circuitry.

Triac, SCR Output Optoisolators Part Context

This part belongs to Everlight's Triac & SCR Output Optocouplers category. It is functionally related to other models in the series, such as the ELM3023(TB) which offers similar triac output characteristics. The product line focuses on providing reliable isolation for AC power management applications across various consumer and industrial electronics sectors.

Triac, SCR Output Optoisolators Replacement Considerations

Direct substitutes within the same family include the ELM3023(TB) for random-phase applications. Verify pinout compatibility and isolation voltage ratings when considering alternative manufacturers. Cross-reference datasheets to ensure equivalent trigger currents and holding currents match the original design specifications.