PC851X

Transistor, Photovoltaic Output Optoisolators Overview

The PC851X is a single-channel phototransistor output optocoupler manufactured by Sharp Microelectronics. It provides electrical isolation with a rated insulation voltage of 5000Vrms. The device features a high collector-emitter voltage capability of up to 350V and supports a maximum DC forward current of 50mA. Typical performance includes a minimum current transfer ratio of 40% at 5mA input, with saturation voltage limited to 300mV. Operating temperatures range from -25°C to +100°C. Available in surface-mount packages such as 4-SMD (鸥翼) and DIP configurations, it serves as a robust component for signal transmission across isolated circuits.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High voltage isolation capability ensuring safe separation between input and output circuits
• Robust output stage designed to handle high collector-emitter voltages for demanding applications
• Compact surface-mount and through-hole package options facilitating flexible PCB integration

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Solid-state relay driver circuits
• Microcontroller interface isolation for digital signal transmission

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix code (e.g., NIP0F, NIP1H) against the datasheet to confirm exact electrical parameters and packaging type. Confirm component status as discontinued or active depending on the specific variant. Ensure compatibility with existing footprint designs when substituting older revisions. Cross-reference manufacturer part numbers with distributor codes to avoid ordering errors due to naming variations.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high voltage isolation and high collector-emitter voltage are required. Compare current transfer ratio specifications if precise gain is critical for the application. Consider package type availability, as surface-mount variants may have different lead times than through-hole versions. Verify thermal operating limits against the expected ambient temperature conditions of the final assembly.

Transistor, Photovoltaic Output Optoisolators Part Context

The PC851X belongs to Sharp's family of transistor-output optocouplers, distinguished by its higher voltage rating compared to standard general-purpose isolators like the PC817 series. It is widely used in consumer and business technology products where reliable signal transmission across isolated boundaries is necessary. The series offers various package options to suit different manufacturing requirements.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers include LTV-851 from Lite-On. Verify pinout compatibility and electrical parameter equivalence before substitution.