ILD55-674

Transistor, Photovoltaic Output Optoisolators Overview

The ILD55-674 is a dual-channel photodarlington optoisolator manufactured by Vishay Semiconductor Opto Division. It provides electrical isolation between input and output circuits with a maximum isolation voltage of 5300Vrms. The device features two independent channels, each capable of delivering an output current of up to 125mA. Key electrical parameters include a typical forward voltage (Vf) of 1.25V, a maximum collector-emitter saturation voltage (Vce(sat)) of 1V, and a minimum current transfer ratio of 100% at 10mA input current. The unit operates within a temperature range of -55°C to 100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration for simultaneous signal isolation
• High isolation voltage rating of 5300Vrms
• Photodarlington output structure for high gain
• Wide operating temperature range suitable for industrial environments

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial automation control systems
• Power supply feedback loops
• Solid-state relay driver circuits
• Microcontroller interface isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix code (e.g., -674) against official Vishay documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing board layouts regarding pinout dimensions. Confirm RoHS compliance status through the latest manufacturer datasheet revision. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Validate thermal performance requirements against the specified junction temperature limits.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is required in a compact surface-mount package. Consider the 125mA output current capability for driving moderate loads directly. Evaluate the 10µs rise time for high-speed digital applications. Compare the 5300Vrms isolation rating against system safety standards. Assess the 100% minimum CTR for reliable switching under varying temperature conditions.

Transistor, Photovoltaic Output Optoisolators Part Context

The ILD55 series belongs to Vishay's family of dual-channel photodarlington optocouplers. These devices are designed for general-purpose isolation applications requiring high reliability. The series offers various packaging options including DIP and SMD configurations. Vishay Semiconductor Opto Division specializes in optoelectronic components for industrial and consumer markets.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers: ILD55-X009, ILD55-X007.