TLP781(D4-GR,F)

Transistor, Photovoltaic Output Optoisolators Overview

The TLP781(D4-GR,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 four-lead plastic DIP package featuring a 7.62mm pitch. Key electrical specifications include a minimum collector-emitter breakdown voltage of 80V, a minimum isolation voltage of 5000Vrms, and a current transfer ratio ranging from 50% to 600%. The device supports a maximum forward current of 60mA and operates within a temperature range of -25°C to +85°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using an internal LED and phototransistor structure.
• Offers reliable signal transmission for logic-level interfaces while maintaining safety compliance through recognized certifications.

Transistor, Photovoltaic Output Optoisolators Applications

• Communication interface circuits
• Power supply management systems
• AC main power voltage detection

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix against official Toshiba documentation to confirm pin pitch and packaging configuration. Ensure the component meets required safety standards such as UL or VDE for the intended application environment. Confirm availability status as product lifecycle stages may affect long-term sourcing.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a standard 7.62mm DIP footprint is required for through-hole mounting. Consider the 5000Vrms isolation rating for applications requiring robust separation between low-voltage control signals and higher-voltage loads. Evaluate the current transfer ratio requirements to ensure adequate drive capability for the connected load.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP781 series of transistor-output optocouplers. The D4-GR suffix indicates a specific plastic DIP-4 package variant with a 7.62mm lead pitch. It is distinct from the TLP781F series, which utilizes a wider 10.16mm pitch. The series is designed for general-purpose isolation tasks in industrial and consumer electronics.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include other Toshiba TLP781 variants with compatible pin pitches. Cross-brand replacements must match the 80V Vceo, 5000Vrms isolation, and DIP-4 form factor. Verify that alternative components meet the same safety certification requirements.