EL3031-V

Overview

The EL3031-V is a Triac and SCR output optocoupler manufactured by Everlight Electronics. It features a peak breakdown voltage of 250V and provides high isolation between input and output with an isolation voltage (Viso) of 5000 Vrms. The device operates within a temperature range of -55°C to +100°C. It incorporates zero voltage crossing functionality for precise AC control applications.

Feature Summary

• Integrated zero voltage crossing capability for accurate AC switching
• High isolation voltage rating of 5000 Vrms between input and output circuits
• Peak breakdown voltage of 250V for reliable triac triggering
• Compliant with RoHS standards and lead-free manufacturing processes

Applications

• Zero voltage crossing triac driver circuits
• Solid-state relay designs requiring phase control
• Industrial AC power switching modules
• Lighting control systems with soft-start capabilities

Procurement Notes

Verify the specific suffix 'V' indicates compliance with environmental directives such as RoHS and lead-free status, as this affects material composition but not electrical function. Confirm that the 6-pin DIP package matches the target PCB footprint. Ensure the 250V peak breakdown voltage aligns with the maximum line voltage requirements of the intended application circuit to prevent device failure under transient conditions.

Selection Notes

Select this component when zero-crossing detection is required to minimize electromagnetic interference during AC load switching. The 5000 Vrms isolation rating makes it suitable for safety-critical interfaces between low-voltage control logic and high-voltage mains. Consider the -55°C to +100°C operating range for industrial environments where thermal stability is essential for consistent triac gate drive performance.

Part Context

This part belongs to the EL303X series of zero-crossing triac drivers from Everlight. It shares functional similarities with variants like the EL3033M-V but differs in packaging and specific voltage ratings. The series is designed for general-purpose AC power control applications requiring galvanic isolation and noise immunity in solid-state switching scenarios.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with direct replacements by matching the 6-pin DIP package, 5000 Vrms isolation, and 250V peak breakdown voltage specifications.