EL815(S)(TB)

Overview

The EL815(S)(TB) is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features a Photodarlington output configuration housed in a 4-SMD surface-mount package. Key electrical specifications include a maximum collector-emitter voltage of 35 V, a maximum DC forward current of 60 mA, and an isolation voltage of 5000 Vrms. The device operates within a temperature range of -55°C to +110°C.

Feature Summary

• High current transfer ratio capability for efficient signal transmission
• Robust electrical isolation between input and output circuits
• Surface-mount packaging for automated assembly integration

Applications

• Industrial control systems requiring galvanic isolation
• Signal interfacing between microcontrollers and high-voltage loads
• Power supply feedback loops

Procurement Notes

Verify the specific suffix (TB) indicates the Tape & Reel packaging format as distinct from tube variants. Confirm RoHS compliance status through official documentation prior to integration. Ensure the supplier provides valid traceability records for this discontinued or end-of-life component series.

Selection Notes

Select this component when surface-mount topology is required for photodarlington outputs. Evaluate the 35 V collector-emitter voltage limit against load requirements. Consider the 60 mA forward current constraint for LED drive circuit design. Verify thermal management capabilities within the specified operating temperature range.

Part Context

This part belongs to the EL815 family of transistor output optocouplers. The (S) designation typically denotes surface-mount construction, while (TB) specifies the reel packaging type. It serves as a compact alternative to through-hole DIP packages for space-constrained PCB designs.

Replacement Considerations

Consult official substitution guides for compatible photodarlington optocouplers with matching 4-SMD footprints. Verify pinout compatibility and electrical parameter equivalence before replacing.