EL3H4(EB)-G

Overview

The EL3H4(EB)-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It features an NPN phototransistor output and provides a high isolation voltage of 3750 Vrms. The device is housed in a compact 4-SSOP surface-mount package with a width of 4.40mm. It supports both AC and DC input types and offers a maximum collector-emitter voltage of 80V. The component operates within a temperature range of -55°C to 100°C, ensuring reliability in various industrial environments.

Feature Summary

• Provides electrical isolation via optical transmission between input and output circuits
• Features an NPN phototransistor output for digital signal switching applications
• Supports AC and DC input signal compatibility for versatile interface designs

Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission across isolated ground potentials
• Microcontroller interface circuits for noise immunity

Procurement Notes

Verify the specific suffix (EB) against the manufacturer's current datasheet to confirm pinout and packaging details. Check for RoHS compliance status and moisture sensitivity levels before integration. Confirm availability as distribution channels may vary. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when a compact 4-pin surface-mount form factor is required for space-constrained designs. Consider the 3750 Vrms isolation rating for safety-critical applications. Evaluate the 80V output voltage limit to ensure it meets the load requirements. Verify that the operating temperature range aligns with the environmental conditions of the end product.

Part Context

This part belongs to the EL3H4 series of transistor output optocouplers from Everlight. The series is designed for general-purpose isolation tasks. Variants within the series differ primarily in packaging suffixes and specific regulatory approvals. The EL3H4(EB)-G specifically denotes the SSOP package configuration.

Replacement Considerations

Consult official substitution guides for equivalent parts with matching isolation voltages and package dimensions. Verify pin-to-pin compatibility if direct replacement is intended. Ensure alternative components meet the same thermal and electrical performance standards.