LDA100STR

Transistor, Photovoltaic Output Optoisolators Overview

The LDA100STR is a single-channel optocoupler featuring an AC-input LED and a photovoltaic transistor output with base. It provides electrical isolation between input and output circuits. The device operates with a minimum breakdown voltage of 30V and a maximum saturation voltage of 0.5V. Key timing specifications include a typical turn-on time of 7µs and a turn-off time of 20µs. It offers a minimum current transfer ratio of 33% at 1mA input current. The component supports an isolation voltage of 3750Vrms and is housed in a 6-pin PDIP SMD package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates an AC-input LED driver with a photovoltaic transistor output for signal isolation
• Provides high-voltage isolation capability suitable for separating circuit grounds
• Features fast switching characteristics with defined turn-on and turn-off times

Transistor, Photovoltaic Output Optoisolators Applications

• Solid-state relay (SSR) input stages
• Industrial control system isolation interfaces
• AC signal detection and monitoring circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific ordering suffix to ensure the correct tape-and-reel packaging configuration matches the assembly requirements. Confirm that the moisture sensitivity level rating aligns with the facility's floor life constraints before soldering. Ensure the supplier documentation explicitly references the Littelfuse datasheet for the LDA100 series to guarantee component authenticity and parameter compliance.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when AC input compatibility is required without additional rectification circuitry. The photovoltaic output design eliminates the need for external biasing on the output side, simplifying circuit topology. Consider the 3750Vrms isolation rating for applications demanding robust separation between high-voltage and low-voltage domains. Evaluate the 7µs turn-on time against system speed requirements to ensure adequate response latency.

Transistor, Photovoltaic Output Optoisolators Part Context

The LDA100STR belongs to the LDA100 series of single optocouplers manufactured by Littelfuse. This series focuses on providing reliable isolation solutions for industrial and commercial applications. The STR suffix indicates the surface-mount tape-and-reel packaging format, facilitating automated placement processes. The device represents a specialized solution for integrating AC inputs directly into isolated DC output stages.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Consult official Littelfuse cross-reference documents for verified substitute part numbers. Do not assume functional equivalence based solely on pinout or package similarity. Verify that any alternative component meets the same isolation voltage and current transfer ratio specifications.