TLP781(D4-BL-SD,F)

Transistor, Photovoltaic Output Optoisolators Overview

The TLP781(D4-BL-SD,F) is a single-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It integrates a Gallium Arsenide (GaAs) infrared emitting diode with a silicon photo-transistor, providing high isolation voltage of 5000 Vrms minimum between input and output circuits. The device features a collector-emitter breakdown voltage of at least 80V and a nominal current transfer ratio of 100% for the GB rank. It is housed in a plastic DIP-4 package with a 7.62mm pitch, designed for robust signal transmission across different voltage domains.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides electrical isolation via optical coupling between input and output circuits
• Integrates GaAs IRED and silicon photo-transistor for reliable signal transmission
• Offers high isolation voltage capability for safety-critical applications

Transistor, Photovoltaic Output Optoisolators Applications

• Office equipment control interfaces
• Household appliance switching circuits
• Solid state relay driver stages
• Switching power supply feedback loops
• Signal transmission between different voltage circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'D4-BL-SD' against official Toshiba documentation to confirm pinout configuration and packaging specifications. Ensure the selected variant matches the required current transfer ratio rank and isolation voltage standards for your application design. Cross-reference ordering codes with authorized distributors to avoid counterfeit components.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when designing circuits requiring galvanic isolation with moderate speed requirements. Consider the 7.62mm DIP package for through-hole mounting convenience. Evaluate the current transfer ratio and collector-emitter voltage ratings against load conditions. Ensure input forward current limits are respected to maintain optimal performance and longevity.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP781 series of photocouplers from Toshiba Semiconductor and Storage. The series is known for combining high isolation voltage with compact DIP packaging. It serves as a fundamental building block for isolating low-voltage control signals from higher-power or noisy environments in various electronic systems.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult official Toshiba documentation for direct replacements or cross-reference compatible transistor-output optocouplers with matching isolation and package specifications.