ILQ621GB

Transistor, Photovoltaic Output Optoisolators Overview

The ILQ621GB is a quad-channel phototransistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It integrates GaAs infrared LED emitters with high-gain NPN silicon phototransistors in a 16-pin DIP package. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a maximum DC forward current of 60 mA, and an isolation voltage of 5300 Vrms. The device exhibits a typical rise time of 2.8 µs and a fall time of 11 µs. Operating temperatures range from -55°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Utilizes GaAs infrared LED emitters for efficient light generation
• Features high-gain NPN silicon phototransistors for signal amplification
• Provides robust electrical isolation between input and output circuits

Transistor, Photovoltaic Output Optoisolators Applications

• Digital logic transmission and conversion
• Power control and switching systems
• Electrical insulation isolation between circuits
• Impedance transformation between system components

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix (GB) against official Vishay documentation to confirm pinout compatibility and material compliance status. Ensure the selected package variant matches the required PCB footprint. Cross-reference datasheet revision dates to validate parameter accuracy before finalizing procurement specifications.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multi-channel isolation is required within a single package to reduce board space. Consider the 5300 Vrms isolation rating for safety-critical applications. Evaluate the CTR range and switching speeds against the target circuit requirements to ensure adequate performance margins under varying temperature conditions.

Transistor, Photovoltaic Output Optoisolators Part Context

The ILQ621GB belongs to the ILQ/ILD series of multi-channel optocouplers. This family includes dual and quad configurations designed to lower pin counts and improve channel-to-channel matching. These devices are engineered for applications demanding reliable galvanic isolation with compact form factors.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Consult official substitution lists for compatible quad-channel alternatives. Verify that any replacement maintains identical pin assignments and isolation voltage ratings to ensure direct interchangeability without circuit redesign.