TLP781F(LF7,F)

Transistor, Photovoltaic Output Optoisolators Overview

The TLP781F(LF7,F) is a single-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It features a gallium arsenide infrared emitting diode optically coupled to a silicon phototransistor within a four-lead plastic DIP package. The device provides a minimum isolation voltage of 5000Vrms and supports a collector-emitter voltage of 80V. Key electrical parameters include a maximum forward current of 60mA, a typical forward voltage of 1.15V, and a collector-emitter saturation voltage of 400mV. The current transfer ratio ranges from 200% to 600%, with a minimum rating of 100%. Operating temperatures span from -25°C to 85°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage capability of 5000Vrms for safe signal transmission between different voltage circuits
• Wide lead pitch option available in DIP-4 packaging for versatile mounting configurations
• Optimized for high-speed switching applications with low propagation delays

Transistor, Photovoltaic Output Optoisolators Applications

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

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix configuration to ensure compatibility with required pin spacing standards. Confirm RoHS compliance status and safety certifications such as UL1577 or VDE DIN EN60747-5-2 prior to integration. Check component lifecycle status as some variants may be in last-time-buy phases. Ensure input drive currents remain within specified limits to maintain optimal performance and longevity.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation requirements and wide lead spacing are necessary for through-hole assembly. Compare against standard pitch variants if board space constraints exist. Consider the current transfer ratio spread for precise biasing needs in analog or digital isolation scenarios. Verify thermal management capabilities given the operating temperature range and power dissipation characteristics.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP781 series, which includes various packaging options like surface mount and different DIP pitches. The 'F' designation typically indicates a 10.16mm lead pitch variant compared to the standard 7.62mm pitch. The series is designed for general-purpose isolation in industrial and consumer electronics, offering reliability across diverse environmental conditions.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

TLP781F(D4GB-LF7,F)

Transistor, Photovoltaic Output Optoisolators FAQ

What is the difference between TLP781 and TLP781F regarding pin spacing?

The TLP781 model features a standard 7.62mm pin pitch, while the TLP781F variant offers a wider 10.16mm pin pitch for enhanced clearance.

Does the TLP781F support AC input signals directly?

No, the input type is specified as DC. An external rectifier circuit is required if converting AC signals for isolation.