IL766B-2

Transistor, Photovoltaic Output Optoisolators Overview

The IL766B-2 is a bidirectional input optocoupler featuring two gallium arsenide infrared emitters and a silicon photodarlington sensor. It provides 5300Vrms isolation voltage in a 6-DIP package. Key electrical parameters include a minimum current transfer ratio of 900% at 500µA, a typical turn-on time of 200µs, and a maximum DC forward current of 60mA. The device supports AC or DC input types and operates within a temperature range of -55°C to 100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Bidirectional input capability utilizing dual infrared emitters for enhanced signal integrity
• High gain output stage provided by the integrated silicon photodarlington transistor
• Robust insulation performance with 5300Vrms isolation rating between input and output circuits

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring high-voltage isolation
• Solid-state relay driver circuits
• Power supply feedback loops

Transistor, Photovoltaic Output Optoisolators Procurement Notes

This component is officially listed as obsolete by Vishay Semiconductor Opto Division. Procurement should focus on verifying remaining stock from authorized distributors or exploring approved replacement alternatives. Ensure that any sourced units are genuine and match the specified 6-DIP package dimensions and pinout configuration before integration into designs.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component only if legacy compatibility or specific bidirectional input requirements are necessary. The photodarlington output offers high sensitivity but slower switching speeds compared to logic outputs. Verify that the 200µs turn-on time meets system timing constraints and that the 60V output voltage rating is sufficient for the load application.

Transistor, Photovoltaic Output Optoisolators Part Context

The IL766B-2 belongs to the IL766 series of optoisolators manufactured by Vishay. It is designed for applications demanding high isolation voltages and reliable signal transmission across isolated boundaries. The device integrates internal base-emitter resistance to simplify circuit design while maintaining stable operation under varying environmental conditions.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

As an obsolete part, direct substitutes may be limited. Consider checking Vishay's current portfolio for similar photodarlington isolators with comparable isolation ratings and package styles. Verify pinout compatibility and electrical parameter equivalence to ensure seamless transition without redesigning the PCB layout.