EL816(Y)

Overview

The EL816(Y) is a single-channel transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It consists of an infrared emitting diode optically coupled to an NPN phototransistor detector. The device provides high isolation voltage of 5000 Vrms between input and output terminals. It features a current transfer ratio ranging from 50% to 600% at a forward current of 5mA and collector-emitter voltage of 5V. The component supports surface mount installation in a compact small outline package with a creepage distance exceeding 7.62 mm. Operating temperature range extends from -55°C to +110°C.

Feature Summary

• High isolation voltage capability between input and output circuits
• Wide current transfer ratio range for flexible signal transmission
• Compact surface mount package design for space-constrained applications
• Extended operating temperature range suitable for harsh environments

Applications

• Industrial control systems requiring electrical isolation
• Signal transmission in microprocessor interfacing circuits
• Power supply feedback loop isolation
• Solid-state relay driver circuits

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm RoHS compliance status and specific suffix variations match project requirements. Check for obsolete status as some variants may be discontinued. Ensure proper handling procedures for electrostatic sensitive devices during storage and assembly.

Selection Notes

Consider the required isolation voltage level and current transfer ratio specifications when selecting this component. Evaluate package compatibility with existing PCB layouts and mounting constraints. Verify thermal performance within the specified operating temperature range. Assess regulatory approval requirements such as UL or VDE certifications for target markets.

Part Context

The EL816 series represents a family of transistor output optocouplers designed for general-purpose isolation applications. These components utilize infrared LED technology coupled with phototransistor detectors to provide galvanic isolation. The series offers various package options and certification approvals to meet diverse global market requirements.

Replacement Considerations

Check for direct substitute part numbers within the EL816 series offering identical pin configurations and electrical characteristics. Verify that alternative components maintain equivalent isolation voltage ratings and current transfer ratios. Confirm package compatibility and regulatory approvals match original specifications.