EL3H7(A)-VG

Overview

The EL3H7(A)-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output and provides an insulation voltage of 3750 Vrms. The device operates within a temperature range of -55°C to +110°C. Key electrical parameters include a collector-emitter saturation voltage of 100 mV maximum, a forward current of 20 mA, and a forward voltage of 1.2 V. The current transfer ratio ranges from 80% to 160%. Rise and fall times are both 18 µs, with a power dissipation of 200 mW.

Feature Summary

• Provides high-voltage isolation between input and output circuits
• Utilizes an NPN phototransistor for signal transmission
• Operates reliably across extended industrial temperature ranges

Applications

• Industrial control systems requiring galvanic isolation
• Signal interfacing in microcontroller-based designs
• Power supply feedback loops

Procurement Notes

Verify the specific suffix designation against official Everlight documentation to confirm exact binning and packaging specifications. Confirm RoHS compliance status through the manufacturer's latest datasheet or certification documents before finalizing procurement plans.

Selection Notes

Select this component when a compact SSOP-4 package is required for surface mount assembly. Ensure the application circuit accommodates the specified 80-160% current transfer ratio and 3750 Vrms isolation rating for adequate noise immunity.

Part Context

This part belongs to the EL3H7 series of ultra-small SSOP optocouplers. The series is designed for applications demanding small form factors while maintaining robust electrical isolation characteristics suitable for modern electronic equipment constraints.

Replacement Considerations

Cross-reference with EL3H7-A-G for tube packaging variants. Verify pinout compatibility and electrical parameter overlaps with other EL3H7 family members before substitution.