EL1117-G

Overview

The EL1117-G is a single-channel photovoltaic output optoisolator manufactured by Everlight Electronics Co Ltd. It features an NPN phototransistor output with a base terminal for enhanced performance control. The device provides high isolation voltage and is housed in a 5-pin SOP package with long creepage distance. Key electrical parameters include a collector-emitter saturation voltage of 0.4V at 10mA, a collector cutoff current of 1nA, and a propagation delay of 3us. The current transfer ratio ranges from 80% to 160% at 5mA input current, with a maximum output current of 50mA.

Feature Summary

• Photovoltaic output configuration with integrated base terminal for improved switching speed and linearity
• High insulation voltage capability ensuring safe signal transmission across isolated circuits
• Long creepage distance design within the 5-pin SOP package for enhanced safety compliance

Applications

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

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm lot codes and date codes against current production status as this part may be obsolete. Request original datasheets and test reports to ensure compliance with specified electrical characteristics. Check for RoHS compliance documentation if required for your assembly process.

Selection Notes

Consider the EL1117-G when base-controlled photovoltaic outputs are needed for faster response times compared to standard transistor outputs. Evaluate the 5-pin SOP footprint compatibility with existing PCB layouts. Ensure the isolation voltage rating meets system safety requirements. Compare current transfer ratio specifications against load requirements to guarantee proper switching margins.

Part Context

This component belongs to Everlight's transistor output optocoupler family, specifically designed for applications requiring high-speed switching and precise signal isolation. The photovoltaic output type distinguishes it from conventional phototransistor variants by offering lower leakage currents and better temperature stability. The 5-pin long creepage SOP package supports higher voltage isolation standards commonly required in industrial and medical equipment.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Verify compatibility with direct replacements by matching pinout configurations, isolation voltage ratings, and current transfer ratios. Consult manufacturer cross-reference guides for updated alternatives if this component is obsolete.