TLP781(D4-GR-SD,F)

Transistor, Photovoltaic Output Optoisolators Overview

The TLP781(D4-GR-SD,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 photo-transistor in a four-lead plastic DIP package (DIP4). The device features a minimum collector-emitter breakdown voltage of 80V and a high isolation voltage of 5000V rms. The specific GR rank variant guarantees a minimum current transfer ratio of 100%. It operates within a temperature range of -25°C to 85°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage capability for safe signal transmission between different voltage circuits
• Optical coupling via gallium arsenide IRED and silicon photo-transistor for electrical isolation
• UL recognized and VDE approved for compliance with international safety standards

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 exact suffix configuration against official Toshiba documentation to ensure correct binning and packaging specifications. Confirm that the D4 package pitch matches the target PCB footprint requirements. Ensure the component meets the required environmental operating temperatures for the intended application environment before finalizing procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and verified safety approvals are critical for the circuit design. The GR ranking provides a guaranteed minimum current transfer ratio suitable for logic interface applications. Consider the DIP4 package constraints and thermal management requirements relative to the maximum forward current limits specified in the datasheet.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP781 series, which utilizes a 7.62mm pitch DIP4 package. It is distinct from the TLP781F, which uses a wider 10.16mm pitch DIP4 package. The series is designed for general-purpose isolation tasks requiring robust performance and standard industrial certifications.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include other TLP781 variants with compatible DIP4 packages and similar CTR rankings. Verify pinout compatibility and isolation voltage ratings when considering alternative manufacturers or series.