TLP785(D4-Y,F

Transistor, Photovoltaic Output Optoisolators Overview

The TLP785(D4-Y,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 within a four-lead plastic DIP package. The device provides high isolation voltage of 5000 Vrms minimum, ensuring robust signal transmission between circuits operating at different potentials. Key electrical characteristics include a maximum collector-emitter voltage of 80 V, a maximum collector current of 10 mA, and a forward current rating of 16 mA. The unit features a typical rise time of 2 µs and fall time of 3 µs, supporting efficient switching applications in industrial and consumer electronics.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates a GaAs infrared LED with a silicon phototransistor for reliable optical coupling
• Provides high insulation voltage capability to prevent interference between isolated circuits
• Features fast switching speeds suitable for data transmission and control signals
• Designed for through-hole mounting in standard DIP-4 configurations

Transistor, Photovoltaic Output Optoisolators Applications

• Solid state relays
• Switching power supplies
• Signal transmission between different voltage circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific CTR rank suffix 'Y' against official Toshiba documentation to confirm the exact current transfer ratio range, as this designation determines the performance bin. Ensure the package variant matches the required PCB footprint and creepage distance specifications for your safety certification requirements.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and moderate switching speed are required for DC or low-frequency signal isolation. Compare the specific CTR bin associated with the 'Y' suffix against circuit drive requirements to ensure adequate margin. Consider thermal dissipation limits and operating temperature range relative to the application environment.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP785 series of transistor output optocouplers from Toshiba. The series is characterized by its use of GaAs LEDs and silicon phototransistors, offering a balance of performance and cost-effectiveness. Variants within the series differ primarily in packaging style (DIP vs. SMD), lead pitch, and CTR grading, allowing designers to choose based on assembly method and signal gain needs.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers for TLP785(D4-Y,F) were not found in the provided source material. Designers should consult Toshiba's official replacement guide or verify pin-compatible alternatives with matching isolation voltage and CTR specifications.