K817P8

Transistor, Photovoltaic Output Optoisolators Overview

The K817P8 is a photovoltaic output optoisolator manufactured by Vishay Semiconductor Opto Division. It features a phototransistor output with a maximum collector-emitter voltage of 70V and a typical forward voltage of 1.25V. The device provides DC isolation test voltage of 5000 VRMS and supports a maximum output current of 50mA per channel. Saturation voltage is typically 300mV. This component is currently obsolete and no longer in production.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Endstackable design compatible with 2.54 mm (0.1 inch) spacing
• High DC isolation capability rated at 5000 VRMS
• Phototransistor output configuration for signal isolation

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Signal interface between microcontrollers and high-voltage circuits
• Power supply feedback loops

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through authorized channels as the K817P8 is officially listed as obsolete by Vishay. Confirm end-of-life status with suppliers to avoid counterfeit inventory. Check datasheet revisions for historical performance data if used in legacy maintenance projects. Ensure compliance with RoHS requirements based on specific manufacturing batch dates, as information varies across sources.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Consider alternative active components from Vishay or other manufacturers offering similar pin-compatible packages and electrical specifications. Evaluate current transfer ratio stability and isolation voltage ratings against modern alternatives. Assess availability of surface-mount options if space constraints exist. Review thermal characteristics and switching speeds for compatibility with existing circuit designs.

Transistor, Photovoltaic Output Optoisolators Part Context

This component belongs to Vishay's family of photovoltaic output optoisolators designed for general-purpose isolation applications. The K817 series typically utilizes a 4-DIP package format. These devices are engineered for reliable signal transmission across isolated boundaries while maintaining electrical safety standards.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Vishay official resources for current equivalent recommendations.