ILD66-4

Transistor, Photovoltaic Output Optoisolators Overview

The ILD66-4 is a dual-channel optoisolator manufactured by Vishay Semiconductor Opto Division. It features Darlington transistor outputs with an internal base-emitter resistor (RBE) for enhanced stability and faster switching. The device provides high isolation voltage of 5300Vrms, suitable for demanding industrial applications. It is housed in an 8-DIP package designed for through-hole mounting. The component supports DC input signals and offers a minimum current transfer ratio of 100% at 2mA forward current. Operating temperature range spans from -55°C to 100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration with integrated Darlington output transistors
• High insulation voltage rating of 5300Vrms for robust signal isolation
• Internal base-emitter resistors included to improve switching speed and stability
• Designed for through-hole installation in standard 8-DIP packages

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Power supply feedback loops for safety compliance
• Microcontroller interface circuits for noise immunity
• Solid-state relay driver applications

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific ordering suffix to ensure correct packaging and pin configuration. Confirm RoHS compliance status as per the latest manufacturer documentation. Check component availability and lead times directly with authorized distributors. Ensure storage conditions meet moisture sensitivity level requirements before assembly. Validate that the selected variant matches the required isolation voltage and channel count for the design.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and fast switching are required in a dual-channel setup. The internal RBE reduces turn-off time compared to standard Darlington outputs. Consider the 8-DIP package size for PCB layout constraints. Evaluate the current transfer ratio requirements against the driving circuit capabilities. Ensure the operating temperature range aligns with the environmental conditions of the target application.

Transistor, Photovoltaic Output Optoisolators Part Context

The ILD66-4 belongs to the ILD66 series of optocouplers from Vishay. This series is designed for general-purpose isolation applications where reliability and speed are critical. It complements single-channel variants like the ILD66-1 and quad-channel options within the same family. The series utilizes advanced LED technology for consistent performance over temperature variations.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include other dual-channel Darlington optocouplers with similar isolation ratings. Verify pin compatibility and electrical parameters such as CTR and isolation voltage. Cross-reference with Vishay's official substitution guide for approved alternatives. Ensure mechanical footprint matches the 8-DIP specification if board space is constrained.