EL817(S)(TA)-V

Overview

The EL817(S)(TA)-V is a single-channel transistor output optocoupler manufactured by Everlight. It integrates an infrared emitting diode and an NPN phototransistor detector within a compact surface-mount package. The device provides high isolation voltage of 5000 Vrms between input and output circuits, ensuring robust electrical safety. Key electrical parameters include a collector-emitter breakdown voltage of 35 V minimum, a maximum forward current of 60 mA, and a typical rise/fall time of 4 µs/3 µs. It operates within a temperature range of -55 °C to +110 °C.

Feature Summary

• High isolation voltage capability between input and output for enhanced circuit safety
• Compact small outline surface-mount package design for space-constrained applications
• Wide operating temperature range suitable for demanding industrial environments

Applications

• Signal isolation in sensitive electronic systems
• Industrial control circuit interfacing
• Power supply feedback loops

Procurement Notes

Verify the specific suffix configuration against official Everlight documentation to ensure compatibility with required packaging and compliance standards. Confirm availability status as distribution channels may vary. Cross-reference pinout and thermal characteristics with target PCB layout requirements prior to integration.

Selection Notes

Select this component when surface-mount technology is required for signal isolation applications. Ensure the NPN phototransistor output aligns with downstream logic or driver interface requirements. Verify that the 5000 Vrms isolation rating meets system safety regulations and creepage distance specifications for the intended enclosure design.

Part Context

This part belongs to the EL817 series, a widely recognized family of transistor output optocouplers. The (S) suffix indicates a surface-mount variant, while (TA) typically denotes tape-and-reel packaging. This series is designed for general-purpose isolation tasks where reliability and compact form factors are prioritized over high-speed switching capabilities.

Replacement Considerations

Direct substitutes include other EL817 surface-mount variants such as EL817(S)(C)-V or EL817(S1)(C)(TU)-V from Everlight. Ensure replacement parts maintain identical pin configurations and isolation ratings to guarantee functional equivalence without redesigning the host circuit.