TLP785(D4,F

Transistor, Photovoltaic Output Optoisolators Overview

The TLP785(D4,F is a single-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It integrates an infrared emitting diode with a silicon phototransistor in a four-lead plastic DIP package. The device provides high isolation voltage of 5000 Vrms minimum. Key electrical parameters include a collector-emitter voltage of 80 V, maximum forward current of 60 mA, and forward voltage of 1.3 V. The current transfer ratio ranges from 50% to 600%. Switching characteristics feature a typical rise time of 2 µs and fall time of 3 µs. The component operates within a temperature range of -55°C to +110°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using optical coupling technology.
• Features a wide current transfer ratio range to accommodate various signal transmission requirements.
• Designed for through-hole mounting with standard DIP-4 packaging for reliable circuit integration.

Transistor, Photovoltaic Output Optoisolators Applications

• Solid-state relays
• Switching power supplies
• Communication equipment signal isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation against official Toshiba documentation to confirm pin pitch and creepage distance specifications. Ensure the selected variant matches the required insulation voltage ratings and safety certifications for the target application environment. Cross-reference ordering codes with manufacturer datasheets to avoid confusion with surface-mount or long-pitch variants.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and moderate switching speeds are required for digital signal transmission. Consider the wide CTR range for robust performance across different operating conditions. Verify that the DIP-4 through-hole package fits the PCB layout constraints. Evaluate thermal dissipation capabilities relative to the maximum power dissipation limits specified in the technical data.

Transistor, Photovoltaic Output Optoisolators Part Context

The TLP785 series represents a family of transistor output optocouplers designed for general-purpose isolation applications. This specific model utilizes a silicon phototransistor coupled to an infrared LED. The series is recognized for its compliance with international safety standards including UL and VDE. It serves as a foundational component for isolating low-voltage control circuits from higher-voltage loads.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

TLP7852 and TLP7852A are documented as faster-switching upgrades within the same product family. Verify pin compatibility and electrical parameter overlaps before substitution. Ensure the replacement part meets all original safety certification requirements.