EL815(S1)(TA)-V

Overview

The EL815(S1)(TA)-V is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features a Photodarlington output configuration housed in a 4-SMD package. The device provides an insulation voltage of 5000 Vrms and supports a maximum collector-emitter voltage of 35 V. Key electrical parameters include a forward current of 60 mA, a forward voltage of 1.4 V, and a collector current of 80 mA. The current transfer ratio ranges from 50% to 600%, with rise and fall times of 300 us and 250 us respectively. Operating temperatures span from -55 C to +110 C.

Feature Summary

• Photodarlington output structure for high gain
• High isolation voltage rating
• Surface mount packaging option

Applications

• Telephone sets
• Telephone exchanges

Procurement Notes

Verify the specific suffix variant against the official datasheet to ensure correct pinout and package dimensions. Confirm RoHS compliance status as required by project specifications. Check manufacturer lifecycle status for long-term availability before finalizing design-in decisions.

Selection Notes

Select this component when high isolation voltage and moderate speed are required in a compact surface mount form factor. Ensure input drive currents remain within the 60 mA limit. Verify thermal management capabilities for operation near the upper temperature boundary.

Part Context

This part belongs to the EL815 series of optocouplers, which typically offer photodarlington outputs. The SMD variant provides a space-saving alternative to traditional DIP packages while maintaining similar electrical characteristics. It is designed for general-purpose isolation applications requiring robust signal transmission.

Replacement Considerations

Consult official substitution guides for compatible equivalents. Verify pin compatibility and electrical parameter overlaps before replacing.