PC817X3CSP9F

Transistor, Photovoltaic Output Optoisolators Overview

The PC817X3CSP9F is a single-channel transistor output optocoupler manufactured by Sharp Microelectronics. It features an infrared LED coupled to a phototransistor within a surface-mount SMD-4 package. The device provides electrical isolation between input and output circuits, utilizing light transmission for signal transfer. Key specifications include a collector-emitter voltage rating of 50V, a collector current capacity of 50mA, and an isolation voltage capability of 5kV. The component operates with a typical current transfer ratio of 50%.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation between input logic and output loads using infrared light transmission
• Integrates an infrared LED emitter with a phototransistor detector in a compact surface-mount form factor
• Designed for noise immunity and interference reduction in digital signal transmission applications

Transistor, Photovoltaic Output Optoisolators Applications

• Signal transmission between computer terminals and peripheral devices
• Isolation in thyristor control systems and solid-state relays
• Interfacing in measurement instruments and automatic ticketing machines
• Power supply feedback loops in household appliances such as heaters and fans

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix X3CSP9F against official datasheets to confirm pinout compatibility and package dimensions. Confirm availability status as this variant may be marked as not recommended for new designs. Ensure sourcing from authorized channels to guarantee authenticity and traceability of the Sharp Microelectronics component.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a small surface-mount footprint is required for basic digital isolation tasks. Consider the 50mA collector current limit and 5kV isolation rating for circuit design constraints. Evaluate thermal management requirements for the SMD-4 package during high-frequency switching operations in the target application environment.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the widely used PC817 series of optocouplers produced by Sharp Microelectronics. The series is known for its reliability in general-purpose isolation applications. The X3CSP9F designation indicates a specific surface-mount packaging variation within this family, distinct from through-hole DIP versions like the PC817XNNSZ0F.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include other PC817 series variants such as PC817X2NSZW or PC817X1NSZW, provided pinout and package compatibility are verified. Generic equivalents like EL817 or FL817 may function similarly but require validation of electrical parameters against the original specification sheet.