EL3043S1(TA)-V

Overview

The EL3043S1(TA)-V is a single-channel Triac and SCR output optocoupler manufactured by Everlight Electronics Co Ltd. It features a GaAs infrared emitting diode optically coupled to a zero-crossing detection triac driver. The device provides high isolation voltage of 5000 Vrms between input and output. It supports a peak breakdown voltage of 400V, with an operating temperature range from -55°C to +100°C. The component is available in a surface mount package and complies with RoHS standards.

Feature Summary

• Integrates zero-voltage crossing detection for reduced electromagnetic interference during switching
• Provides high electrical isolation capability between control circuitry and load side
• Utilizes gallium arsenide infrared LED for efficient optical coupling

Applications

• Solid-state relay circuits requiring AC load control
• Motor control systems utilizing phase-angle firing
• Lighting dimmer applications for AC mains loads

Procurement Notes

Verify the specific suffix designation against the manufacturer datasheet to confirm package type and tape-and-reel specifications. Ensure that the requested variant matches the required isolation voltage ratings and thermal characteristics for the intended application environment before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring galvanic isolation for AC power switching with minimal noise generation. The integrated zero-crossing feature makes it suitable for applications where switching transients must be minimized. Confirm that the forward current requirements align with the driving logic levels available in the system design.

Part Context

This part belongs to the EL304X series of Triac output optocouplers from Everlight. The series includes variants with different peak breakdown voltages, such as 250V, 400V, 600V, and 800V options. These devices are designed for reliable high-voltage switching applications in industrial and consumer electronics.

Replacement Considerations

Compatible substitutes within the same family include EL3041S1(TA)-V and EL3042S1(TA)-V, provided the lower peak breakdown voltage ratings are acceptable for the specific circuit requirements.