EL3H4(EA)-VG

Overview

The EL3H4(EA)-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an infrared emitting diode reverse-parallel connected to another, coupled to an NPN phototransistor. The device provides 3750 Vrms isolation voltage and supports a maximum collector-emitter voltage of 80V. It operates within a temperature range of -55°C to +100°C with a power dissipation of 200 mW. The component is available in a 4-SSOP surface-mount package.

Feature Summary

• Integrated dual infrared LEDs for AC/DC input compatibility
• High isolation voltage rating for safety circuits
• NPN phototransistor output for digital switching applications

Applications

• Microprocessor system interface isolation
• Solid-state relay driver circuits
• Signal isolation in industrial control systems

Procurement Notes

Verify the specific suffix EA against the official datasheet to confirm package dimensions and tape/reel specifications. Ensure compliance with RoHS directives as indicated in distributor records. Confirm moisture sensitivity level requirements for storage and handling prior to assembly.

Selection Notes

Select this component when AC input detection is required due to the internal anti-parallel LED configuration. The SSOP-4 package suits space-constrained PCB designs. Verify that the 80V output voltage rating meets the load requirements of the downstream circuitry.

Part Context

This part belongs to the EL3H4 series of transistor output optocouplers. Variants such as EL3H4(A)(TA)-VG and EL3H4(A)(TB)-VG share similar electrical characteristics but may differ in packaging or certification markings. The EL3H4(EA)-VG specifically denotes the 4-SSOP package variant.

Replacement Considerations

Check for direct substitutes like EL3H4(A)(TA)-G or EL3H4(A)(EA)-G from Everlight. Verify pinout compatibility and isolation voltage ratings before substitution.