TPC817S1B RAG

Transistor, Photovoltaic Output Optoisolators Overview

The TPC817S1B RAG is a surface-mount transistor output optocoupler manufactured by Taiwan Semiconductor Corporation. It integrates an infrared emitting diode and an NPN phototransistor within a compact SMD package, providing electrical isolation between input and output circuits. The device features a single channel configuration with a specified collector-emitter breakdown voltage of 35V and a maximum continuous collector current of 50mA. It offers a minimum current transfer ratio (CTR) of 130% under standard test conditions, ensuring reliable signal transmission across the isolation barrier while maintaining low power consumption characteristics suitable for modern electronic designs.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates an infrared LED and NPN phototransistor for galvanic isolation
• Surface-mount design optimized for automated assembly processes
• Provides high current transfer ratio for efficient signal coupling

Transistor, Photovoltaic Output Optoisolators Applications

• Signal isolation in microcontroller interfacing circuits
• Feedback control loops in switching power supplies
• Isolation barriers in industrial communication interfaces

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'RAG' against official Taiwan Semiconductor documentation to confirm tape and reel packaging specifications and environmental compliance status. Ensure that the procurement source provides valid manufacturer traceability and authentic component verification to prevent counterfeit risks associated with surface-mount optocouplers.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a surface-mount form factor is required for space-constrained PCB layouts. Consider the 35V collector-emitter voltage rating and 50mA output current capability for driving moderate loads. Verify that the CTR range meets the specific biasing requirements of the target application circuit to ensure consistent switching performance.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the PC817 family of optocouplers, widely utilized for general-purpose isolation tasks. The 'S1' designation indicates a surface-mount variant, distinguishing it from traditional through-hole DIP packages. The 'B' typically denotes a specific Current Transfer Ratio bin, offering higher gain than standard variants for improved drive efficiency.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Compatible substitutes include EL817S1B and LTV-817S1B, provided they match the surface-mount footprint and electrical parameters. Verify pinout compatibility and insulation voltage ratings before implementing any cross-brand replacement in existing designs.