EL816(S)(X)(TA)

Overview

The EL816(S)(X)(TA) is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an infrared emitting diode optically coupled to an NPN phototransistor detector in a compact surface-mount DIP-4 package. The device provides high isolation voltage of 5000 Vrms between input and output, with a creepage distance exceeding 7.62 mm. It operates within a temperature range of -55°C to +110°C. Key electrical parameters include a maximum forward current of 60 mA, collector-emitter breakdown voltage of 80 V minimum, and a typical rise/fall time of 4 µs/3 µs.

Feature Summary

• High isolation voltage capability of 5000 Vrms ensures robust signal transmission across isolated circuits.
• Compact surface-mount DIP-4 packaging facilitates automated assembly and space-constrained designs.
• Wide operating temperature range supports functionality in extreme environmental conditions up to +110°C.

Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission in microprocessor-based circuits
• Power supply feedback loops for voltage regulation

Procurement Notes

Verify the specific suffix configuration against the manufacturer's datasheet to ensure compatibility with required isolation standards and mounting types. Confirm RoHS compliance status and lead times with authorized distributors, as availability may vary by region. Ensure the selected variant matches the intended surface-mount footprint and thermal requirements for the target application.

Selection Notes

Select this component when high isolation voltage and compact SMD form factor are critical. Compare current transfer ratio specifications against load requirements to ensure adequate switching performance. Verify that the 50 mA output current capacity meets the downstream circuit demands. Consider the wide temperature range if the operating environment exceeds standard commercial limits.

Part Context

The EL816 series comprises optocouplers integrating infrared LEDs with phototransistor detectors. Available in both through-hole and surface-mount configurations, the series offers varying lead spacings and isolation ratings. This specific model represents the surface-mount variant designed for modern PCB assembly techniques while maintaining high-voltage isolation capabilities.

Replacement Considerations

Direct substitutes include other 4-pin SMD transistor output optocouplers with comparable 5000 Vrms isolation and similar pinout configurations. Verify CTR ranges and package dimensions before substitution to ensure mechanical and electrical compatibility without redesigning the host circuit.