LOC111STR-G

Transistor, Photovoltaic Output Optoisolators Overview

The LOC111STR-G is a single linear optocoupler manufactured by Littelfuse Inc. It features an infrared LED optically coupled with two phototransistors, where one serves as a feedback input device to generate a signal proportional to the LED current. The component provides high isolation voltage of 3750Vrms and supports DC input type operation. It is housed in an 8-SMD Gull Wing package and is supplied in Tape & Reel format. This configuration enables precise linear signal transmission with internal feedback for stability.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Incorporates an infrared LED optically coupled with dual phototransistors for enhanced signal fidelity
• Features an integrated feedback phototransistor that generates a signal proportional to the input LED current
• Provides high electrical isolation capability between input and output circuits

Transistor, Photovoltaic Output Optoisolators Applications

• Linear signal isolation in industrial control systems
• Feedback loop stabilization in power supply circuits
• Precision analog signal transmission across isolated boundaries

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific ordering suffix and package variant against the official Littelfuse datasheet to ensure compatibility with your PCB footprint and reflow profile requirements. Confirm that the component status remains active before finalizing procurement plans. Cross-reference the part number with authorized distributors to validate authenticity and traceability documentation.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when linear response and internal feedback are required for stable optical coupling applications. Ensure the design accommodates the 8-SMD Gull Wing package dimensions and thermal characteristics. Verify that the isolation voltage rating meets the safety requirements of the target application environment.

Transistor, Photovoltaic Output Optoisolators Part Context

The LOC111 series belongs to Littelfuse's portfolio of linear optocouplers designed for applications requiring accurate signal transfer with minimal distortion. The STR-G designation indicates a specific surface-mount packaging variant optimized for automated assembly processes, distinguishing it from through-hole or alternative package options within the same functional family.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Consult official Littelfuse cross-reference documents for verified substitute part numbers. Do not assume pin-compatible alternatives without verifying electrical parameters and package dimensions against the original specification.