ILQ31

Transistor, Photovoltaic Output Optoisolators Overview

The ILQ31 is a quad-channel optoisolator manufactured by Vishay Semiconductor Opto Division, designed for high-voltage isolation applications. It features four independent channels with photodarlington outputs and gallium arsenide infrared emitters. The device provides an isolation voltage of 5300Vrms between input and output sides. It operates within a temperature range of -40°C to 85°C and is available in a 16-pin DIP package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Four independent channels for simultaneous signal isolation
• High isolation voltage rating of 5300Vrms
• Photodarlington output configuration for high gain
• Gallium arsenide infrared emitter technology

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial automation control systems
• Power supply feedback loops
• Medical equipment signal isolation
• Test and measurement instrumentation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix code on the component marking against the official datasheet to confirm pinout and electrical characteristics. Ensure the procurement source provides valid RoHS compliance documentation as required by project specifications. Cross-reference the manufacturer part number with authorized distributor lists to avoid counterfeit components.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are required in a single package to reduce board space. Consider the photodarlington output speed limitations compared to logic output isolators. Evaluate the 5300Vrms isolation requirement against system safety standards. Confirm the 16-pin DIP package compatibility with existing PCB footprints.

Transistor, Photovoltaic Output Optoisolators Part Context

The ILQ31 belongs to Vishay's family of quad-channel optocouplers, including the ILQ30 and ILQ55 variants. These devices utilize gallium arsenide emitters for efficient light transmission across the isolation barrier. The series is designed for robust performance in noisy industrial environments requiring reliable galvanic isolation.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers include ILQ30 and ILQ55 from Vishay Semiconductor Opto Division. Verify pinout compatibility and electrical parameter equivalence before substitution. Check if alternative manufacturers offer functionally equivalent quad-channel photodarlington isolators.