ILQ5

Transistor, Photovoltaic Output Optoisolators Overview

The ILQ5 is a quad-channel transistor-output optocoupler manufactured by Vishay Semiconductor Opto Division. It features four independent phototransistor outputs within a single 16-pin DIP package, designed for through-hole mounting. The device provides high isolation with a rated insulation voltage of 5300 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 70 V and a maximum collector current of 400 mA. The input side supports a forward current up to 60 mA with a typical forward voltage of 1.65 V. The unit operates within a temperature range of -40°C to +100°C and has a power dissipation rating of 250 mW.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Quad-channel configuration providing four independent signal paths in a single package
• High-voltage isolation capability suitable for demanding safety applications
• Robust output stage capable of handling significant collector current loads

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring multi-channel signal isolation
• Power supply feedback loops for voltage regulation
• Data communication interfaces needing galvanic separation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component status carefully as the ILQ5 is listed as an End-of-Life (EOL) product by the manufacturer. Availability may be limited to existing stock or surplus channels rather than direct new production from Vishay. Confirm RoHS compliance details and specific packaging quantities with authorized distributors before ordering. Ensure that any substitute components meet the same pinout and electrical specifications to maintain system integrity.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a design requires multiple isolated channels without increasing board space. The 16-pin DIP format is suitable for prototyping and legacy manufacturing processes. Consider the thermal management requirements due to the 250 mW power dissipation limit. Evaluate the rise and fall times against the switching speed requirements of the application, noting differences between saturated and non-saturated operation modes.

Transistor, Photovoltaic Output Optoisolators Part Context

The ILQ5 belongs to the ILQ series of quad-channel optocouplers from Vishay. This series is designed for applications requiring compact, multi-channel isolation solutions. The component utilizes standard phototransistor technology for reliable signal transmission across isolation barriers. It represents a specific solution within Vishay's broader portfolio of optoelectronic devices focused on industrial and commercial electronics.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for ILQ5-X009T or other suffix variants if surface-mount packaging is required instead of through-hole. Verify equivalent quad-channel optocouplers from other manufacturers if the EOL status prevents procurement. Ensure replacement parts match the 16-pin DIP footprint and 5300 Vrms isolation rating.