ILQ66-4

Transistor, Photovoltaic Output Optoisolators Overview

The ILQ66-4 is a quad-channel photodarlington optocoupler in a 16-pin DIP package. It provides electrical isolation with a rated voltage of 5300Vrms. The device features DC input and Darlington transistor outputs capable of handling up to 60V. Key electrical parameters include a minimum current transfer ratio of 500% at 2mA input, typical rise/fall times of 200µs, and a maximum forward voltage of 1.3V. It operates within a temperature range of -55°C to 100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Quad-channel configuration for multi-signal isolation
• High isolation voltage rating of 5300Vrms
• Darlington output structure for high gain
• Internal base resistance for simplified drive requirements

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Power supply feedback loops
• Signal transmission across potential barriers
• Interface circuits between low-voltage logic and high-voltage loads

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as per latest datasheet revisions. Check for end-of-life notices, as this specific part number may have discontinuation history. Ensure packaging type matches project requirements for through-hole mounting.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high current transfer ratio and robust isolation are required. The Darlington output offers higher sensitivity compared to standard phototransistor variants. Consider the slower switching speed (200µs) which limits suitability for high-frequency applications. Verify pinout compatibility with existing PCB layouts before integration.

Transistor, Photovoltaic Output Optoisolators Part Context

The ILQ66 series belongs to Vishay's family of photodarlington optocouplers designed for general-purpose isolation. The ILQ66-4 specifically provides four independent channels in a single package, reducing board space compared to discrete solutions. It complements other variants like ILQ66-1 and ILQ66-2 by offering multi-channel capability.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for equivalent quad-channel photodarlington optocouplers from other manufacturers if availability is an issue. Verify that replacement parts match the 5300Vrms isolation rating and 16-DIP footprint. Ensure current transfer ratio and saturation voltage specifications meet original design requirements.