EL816(S)(D)(TA)

Overview

The EL816(S)(D)(TA) is a single-channel transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It integrates an infrared emitting diode with a phototransistor detector in a compact surface-mount package. The device provides high isolation voltage of 5000 Vrms between input and output circuits. Key electrical parameters include a collector-emitter breakdown voltage of 80 V minimum, a maximum forward current of 50 mA, and a maximum dark current of 0.1 nA. The unit operates within a temperature range of -55 °C to +110 °C and features a nominal current transfer ratio of 50%.

Feature Summary

• High isolation voltage capability between input and output channels
• Compact surface-mount design for space-constrained applications
• Wide operating temperature range suitable for industrial environments

Applications

• Industrial control systems requiring signal isolation
• Power supply feedback loops
• Microcontroller interface circuits

Procurement Notes

Verify the specific suffix configuration against the manufacturer's datasheet to ensure compatibility with required isolation standards and package dimensions. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer prior to ordering. Ensure that the selected variant matches the intended thermal and electrical requirements of the final assembly.

Selection Notes

Select this component when high-voltage isolation is required in a small footprint. Consider the current transfer ratio variations and operating temperature limits during circuit design. Verify that the surface-mount package aligns with the PCB layout constraints and soldering capabilities of the manufacturing process.

Part Context

This part belongs to the EL816 series of optocouplers from Everlight Electronics. The series typically includes various package options such as DIP and SMD configurations. These devices are widely used for galvanic isolation in electronic circuits, providing safety separation between low-voltage control signals and higher-voltage power stages.

Replacement Considerations

Check for direct pin-compatible substitutes within the same family or from other manufacturers offering similar isolation ratings and package types. Ensure that any replacement maintains the required current transfer ratio and voltage specifications.