ELW136

Overview

The ELW136 is a high-speed optocoupler manufactured by Everlight Electronics Co Ltd, housed in an 8-pin DIP wide body package. It features a photovoltaic output type and provides an isolation voltage of 5000 Vrms. The device supports DC input with a typical turn-on time of 320 ns and a turn-off time of 250 ns. Current transfer ratio specifications range from a minimum of 19% to a maximum of 50%, measured at a forward current of 16 mA.

Feature Summary

• High-speed operation with nanosecond switching times
• Photovoltaic output configuration for microcontroller interfacing
• Wide body DIP-8 packaging for through-hole installation

Applications

• Microcontroller interface circuits
• Digital signal isolation
• General purpose high-speed data transmission

Procurement Notes

Verify the specific datasheet version when sourcing, as photovoltaic output variants may differ significantly from standard transistor or Darlington types. Confirm the 8-pin DIP wide body package dimensions match your PCB footprint requirements. Ensure the 5000 Vrms isolation rating meets your system's safety standards. Cross-reference the 16 mA forward current requirement with your driver circuit capabilities to ensure proper logic level translation.

Selection Notes

Select this component when high-speed digital isolation is required with a photovoltaic output stage. The fast turn-on and turn-off times make it suitable for applications demanding rapid signal transitions. Consider the wide body DIP package if through-hole mounting is preferred over surface mount alternatives. Verify that the current transfer ratio characteristics align with the load requirements of the receiving circuitry.

Part Context

This component belongs to Everlight's high-speed optocoupler family, designed for reliable electrical isolation between low-voltage control circuits and higher-voltage loads. The photovoltaic output variant distinguishes it from transistor-output models by providing a floating voltage source rather than a switched current sink. This architecture is often utilized in precision analog isolation or specific digital logic interfaces where galvanic separation is critical.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.