TLP781F(D4GB-TP7,F

Transistor, Photovoltaic Output Optoisolators Overview

The TLP781F(D4GB-TP7,F is a single-channel transistor output optocoupler from Toshiba. It integrates a GaAs infrared emitting diode and an NPN phototransistor in a DIP-4 package with a 10.16mm pitch. Key electrical parameters include a collector-emitter voltage of 80V, isolation voltage of 5000Vrms, and current transfer ratio ranging from 100% to 600%. Typical switching times are 2μs rise and 3μs fall.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage capability for safe signal transmission between different voltage circuits
• Wide current transfer ratio range supporting various gain requirements
• Fast switching speed suitable for general-purpose signal transmission

Transistor, Photovoltaic Output Optoisolators Applications

• Office equipment control circuits
• Household appliance interfaces
• Solid state relay driver stages
• Switching power supply feedback loops
• Signal transmission between microcontrollers and high-voltage loads

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix matches the required pin pitch and CTR rank. Confirm RoHS compliance status through official documentation. Check for lead-free specifications if required by assembly processes. Ensure the supplier provides valid datasheets matching the exact part number variant.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and moderate speed are required. The wide CTR range allows flexibility in circuit design. Consider thermal management within the specified operating temperature range. Verify input current limits against the driving source capabilities.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the TLP781 series, designed for general-purpose isolation applications. It offers a balance of performance and cost-effectiveness. The DIP-4 package facilitates easy integration into standard PCB layouts. It serves as a reliable interface between low-power control logic and higher-power load circuits.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes may include other Toshiba TLP781 variants with compatible pitch and CTR. Cross-brand replacements require verification of isolation voltage, CTR, and switching speeds. Ensure pinout compatibility and package dimensions match the existing footprint.