TLP781F(D4-LF7,F)

Transistor, Photovoltaic Output Optoisolators Overview

The TLP781F(D4-LF7,F) is a single-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It integrates a Gallium Arsenide infrared emitting diode with a silicon phototransistor in a 4-lead plastic DIP package featuring a 10.16mm pitch. The device provides a minimum isolation voltage of 5000Vrms and supports a collector-emitter voltage of 80V. It operates within a temperature range of -25°C to 85°C, with a typical current transfer ratio of 100%.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage capability for safe signal transmission between circuits
• Direct integration of GaAs IRED and silicon phototransistor for reliable optical coupling
• DIP4 package design suitable for through-hole mounting applications

Transistor, Photovoltaic Output Optoisolators Applications

• Office equipment control systems
• Household appliance interfaces
• Solid state relay switching
• Signal transmission between different voltage circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix (LF7, F) against official Toshiba documentation to confirm pin configuration and packaging details. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment. Cross-reference datasheet parameters with system requirements before finalizing procurement decisions.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and compact DIP packaging are required for DC signal transmission. Consider the operating temperature range and current transfer ratio characteristics to ensure compatibility with the driving circuit and load requirements. Verify that the 80V collector-emitter voltage rating meets the system's maximum voltage constraints.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP781 series of transistor output optocouplers from Toshiba. The series is designed for general-purpose isolation applications requiring robust performance in consumer and industrial electronics. The specific model denotes a DIP4 package variant optimized for standard printed circuit board layouts.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Consult official Toshiba substitution guides for verified equivalent parts. Generic replacements may not match the specific isolation voltage or current transfer ratio requirements.