TLP781F(D4-GRH,F)

Transistor, Photovoltaic Output Optoisolators Overview

The TLP781F(D4-GRH,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 (DIP4) package featuring a 10.16mm pin pitch. The device provides high isolation voltage of 5000Vrms minimum, ensuring safe signal transmission between circuits with different voltage potentials. Key electrical parameters include a collector-emitter breakdown voltage of 80V minimum, a maximum forward current of 60mA, and a collector output current of 50mA per channel. The current transfer ratio ranges from 200% to 600%, facilitating efficient switching performance.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage capability for safe inter-circuit signal transmission
• Integrated GaAs IRED and silicon phototransistor for reliable optical coupling
• Wide operating temperature range suitable for industrial environments
• Compliant with international safety standards including UL and VDE

Transistor, Photovoltaic Output Optoisolators Applications

• Communication interface circuits
• Power supply management systems
• AC main power voltage detection
• Solid state relays
• Switching power supplies

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix GRH confirms the 10.16mm DIP-4 package variant when sourcing. Ensure compliance requirements such as RoHS and specific safety certifications match project needs. Confirm availability status as this part may be in last-time-buy phase depending on regional distributor stock. Cross-reference datasheet revisions to ensure parameter consistency with existing designs.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component for applications requiring galvanic isolation between low-voltage control logic and higher-voltage loads. The high current transfer ratio allows for direct driving of subsequent stages without additional amplification. Consider the 10.16mm pitch for through-hole mounting constraints. Evaluate thermal dissipation requirements within the specified operating temperature range during continuous operation.

Transistor, Photovoltaic Output Optoisolators Part Context

This model belongs to the TLP781 series of transistor output optocouplers. The 'F' designation indicates the 10.16mm pin spacing DIP-4 package, distinguishing it from the standard 7.62mm pitch TLP781. The GRH suffix typically denotes specific binning or packaging variations within the Toshiba semiconductor portfolio. This series is designed for general-purpose isolation tasks in consumer and industrial electronics.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Compatible substitutes include other single-channel transistor output optocouplers with similar 5000Vrms isolation and DIP-4 packaging. Verify that replacement parts meet the same 80V collector-emitter voltage and current transfer ratio specifications. Ensure pin compatibility and safety certification equivalence before implementation.