EL1017-VG

Overview

The EL1017-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an infrared emitting diode optically coupled to a phototransistor, providing electrical isolation between input and output circuits. The device utilizes a long creepage SOP-4 package with a 2.54mm pin pitch, designed for surface mount applications. Key electrical specifications include a collector-emitter breakdown voltage of 80V, a maximum forward current of 60mA, and an isolation voltage rating of 5000Vrms. The component operates within a temperature range of -55°C to +110°C and has a power dissipation capacity of 250mW.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using optical coupling technology.
• Features a compact surface-mount SOP-4 package with extended creepage distance for enhanced safety.
• Incorporates a phototransistor output stage suitable for digital signal transmission and switching applications.

Applications

• Signal isolation in industrial control systems
• Interface circuits for microprocessors and logic devices
• Switching power supply feedback loops

Procurement Notes

Verify the specific suffix (e.g., TA, TB) against the datasheet to confirm tape-and-reel packaging requirements. Ensure the selected variant meets the required insulation classification and regional safety approvals such as UL or VDE. Confirm that the SOP-4 footprint matches the PCB design constraints before finalizing procurement orders.

Selection Notes

Select this component when high isolation voltage is required in a small surface-mount form factor. Consider the CTR range and collector-emitter voltage ratings to ensure compatibility with the load circuit. Verify thermal management capabilities given the 250mW power dissipation limit in enclosed environments.

Part Context

This part belongs to the EL1017 series of transistor output optocouplers from Everlight Electronics. The series is widely used for general-purpose isolation tasks. The VG suffix typically indicates RoHS compliance and halogen-free manufacturing standards, aligning with modern environmental regulations for electronic components.

Replacement Considerations

Direct replacements may include other EL1017 variants with different suffixes indicating packaging changes. Cross-brand equivalents should be verified for matching pinout, isolation voltage, and CTR characteristics to ensure functional compatibility without redesign.