ELT3083

Triac, SCR Output Optoisolators Overview

The ELT3083 is a Triac output optocoupler manufactured by Everlight Electronics Co Ltd. It features a single channel with integrated zero-crossing detection circuitry for precise AC phase control applications. The device provides high isolation voltage of 5000Vrms between input and output sides. It utilizes a 4-pin DIP package suitable for through-hole mounting. Key electrical parameters include a maximum forward current of 60 mA, a peak repetitive off-state voltage of 800 V, and a holding current typically at 280 µA. The operating temperature range spans from -55°C to +100°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry for accurate AC switching timing
• High insulation voltage capability ensuring safe galvanic isolation
• Single-channel triac output design for direct load driving

Triac, SCR Output Optoisolators Applications

• AC power switching circuits requiring zero-crossing control
• Solid state relay (SSR) driver stages
• Lighting control systems for dimmers and switches

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix variant against the manufacturer's latest datasheet to ensure compatibility with required packaging and lead times. Confirm availability status as supply constraints may affect immediate procurement. Cross-reference the pinout configuration with the target PCB footprint to prevent installation errors during assembly.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing functionality is mandatory for reducing electromagnetic interference in AC loads. Ensure the system voltage does not exceed the 800 V peak off-state rating. Verify that the 4-pin DIP package aligns with the mechanical constraints of the enclosure and manufacturing process requirements.

Triac, SCR Output Optoisolators Part Context

This part belongs to the EL series of optocouplers designed for industrial and consumer AC control applications. It complements other variants like the EL3083 which may differ in package style or specific electrical tolerances. The ELT3083 specifically targets applications needing robust isolation and precise timing synchronization with the AC line frequency.

Triac, SCR Output Optoisolators FAQ

Does the ELT3083 include internal zero-crossing detection?

Yes, the device integrates a zero-crossing circuit to detect when the AC voltage crosses zero, enabling synchronized switching.

What is the maximum isolation voltage rating?

The ELT3083 supports an isolation voltage of 5000Vrms between the LED input and the triac output.