LDA111

Transistor, Photovoltaic Output Optoisolators Overview

The LDA111 is a unidirectional-input optocoupler featuring a Darlington-transistor output. It provides optical isolation for switching control circuits within a single-channel package. The device offers a minimum current transfer ratio (CTR) of 300%. Key electrical specifications include a collector-emitter voltage rating of 30 V and an isolation voltage of 8500 Vrms. The component utilizes a 6-pin through-hole configuration, suitable for applications requiring high reliability and robust signal isolation in industrial environments.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Unidirectional input with Darlington-transistor output
• High current transfer ratio capability
• Optical isolation for switching control circuits

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems
• Power supply feedback loops
• Signal isolation in measurement equipment

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific ordering suffix to confirm package type and tape-and-reel versus tube packaging options. Ensure the selected variant matches the required lead time and availability constraints. Cross-reference the manufacturer's latest datasheet to confirm compliance with RoHS directives and other regulatory standards applicable to your region before finalizing procurement orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high current gain is necessary without external amplification. The Darlington output structure supports direct driving of loads that require higher collector currents than standard phototransistors. Evaluate the isolation voltage requirements against the system's safety standards. Consider the thermal performance and mounting constraints associated with the 6-pin through-hole package during PCB layout design.

Transistor, Photovoltaic Output Optoisolators Part Context

Littelfuse manufactures the LDA111 as part of its OptoMOS product line. This series focuses on providing reliable optical isolation solutions for various electronic applications. The company designs these components to enhance system safety and signal integrity by electrically separating input and output circuits while maintaining efficient data or control signal transmission across the isolation barrier.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.