EL815(M)

Overview

The EL815(M) is a single-channel photodarlington optocoupler manufactured by Everlight Electronics. It features a high current transfer ratio with a minimum of 600% at an input current of 1mA and collector-emitter voltage of 2V. The device provides a high isolation voltage of 5000 Vrms between the input and output circuits. It is housed in a compact dual-in-line package with leads spaced at 0.4 inches (10.16mm), designated by the 'M' suffix.

Feature Summary

• High current transfer ratio for efficient signal transmission
• High isolation voltage ensuring circuit safety
• Compact dual-in-line package design

Applications

• Telephone sets and exchanges
• Sequence controllers
• System appliances and measuring instruments
• Signal transmission between circuits of different potentials and impedances

Procurement Notes

Verify component authenticity through official Everlight channels or authorized distributors. Confirm the specific suffix matches required lead spacing. Check for RoHS compliance status as indicated in official documentation. Ensure storage conditions align with manufacturer guidelines to maintain performance integrity before installation.

Selection Notes

Select this component when high gain is required due to its Darlington output configuration. The 5000 Vrms isolation rating suits applications demanding robust electrical separation. The DIP-4 package facilitates easy integration into standard PCB layouts. Consider the specific lead spacing requirements associated with the M variant during mechanical design.

Part Context

This part belongs to the EL815 series of phototransistor optocouplers from Everlight. It shares the base EL815 architecture but specifies the 0.4-inch lead spacing via the M suffix. The series includes variations such as SMD tape-and-reel options and different lead configurations, all maintaining the core photodarlington functionality and isolation characteristics defined in the datasheet.

Replacement Considerations

Cross-reference with other EL815 variants like EL815S or EL815TB if surface mount packaging is needed. Verify pinout compatibility with existing designs. Ensure replacement parts meet the same isolation voltage and CTR specifications.