EL816(D)

Overview

The EL816(D) is a single-element transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode optically coupled to a phototransistor detector within a compact surface-mount package. The device provides high isolation voltage between input and output terminals, ensuring safe signal transmission across different potentials. It operates within a wide temperature range and complies with RoHS standards for environmental safety.

Feature Summary

• High isolation voltage capability between input and output circuits
• Wide operating temperature range suitable for demanding environments
• Compact small outline surface-mount package design
• Compliant with lead-free and RoHS directives

Applications

• Programmable controllers
• System appliances and measuring instruments
• Telecommunication equipment
• Home appliances such as fan heaters
• Signal transmission between circuits of different potentials

Procurement Notes

Verify the specific suffix codes against official Everlight documentation to confirm package type and tape/reel specifications. Ensure compliance requirements match project needs, including UL and VDE approvals. Confirm availability through authorized distributors as supply chains may vary. Cross-reference datasheet revisions to ensure parameter consistency before integration into final designs.

Selection Notes

Select this component when galvanic isolation is required between low-voltage control signals and higher-voltage loads. The transistor output interface suits digital switching applications. Consider the creepage distance and isolation voltage ratings for safety-critical designs. Verify current transfer ratio requirements align with the driving circuit capabilities for reliable switching performance.

Part Context

This part belongs to the EL816 series of photo couplers from Everlight Electronics. The series features infrared LEDs coupled to phototransistors in various packages. The EL816(D) variant specifically denotes a surface-mount configuration within this family, offering space-saving benefits for modern electronic assemblies while maintaining standard optocoupler functionality.

Replacement Considerations

Check for direct pin-compatible substitutes within the EL816 series or equivalent offerings from other manufacturers. Verify that replacement parts meet the same isolation voltage and current transfer ratio specifications. Ensure mechanical footprint compatibility if board space is constrained. Confirm regulatory approvals match original requirements.