TLP781(D4-TELS,F)

Transistor, Photovoltaic Output Optoisolators Overview

The TLP781(D4-TELS,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 between input and output circuits. Key electrical parameters include a collector-emitter breakdown voltage of 80 V minimum, a maximum forward current of 25 mA, and a dark power supply of 100 nA maximum. The standard current transfer ratio is specified at 100% minimum for the GB rank.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides optical signal transmission between isolated circuits using a GaAs IRED and silicon phototransistor configuration.
• Features high insulation capability with a minimum isolation voltage rating to ensure circuit safety.
• Offers stable switching performance with defined current transfer ratios for reliable logic interfacing.

Transistor, Photovoltaic Output Optoisolators Applications

• Office equipment control systems
• Household appliance interface circuits
• Solid state relay driver stages
• Switching power supply feedback loops
• Signal transmission between different voltage domains

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix code against official Toshiba documentation to confirm pin pitch and lead forming specifications. Ensure the selected variant matches the required current transfer ratio rank for the intended application. Confirm compliance with relevant safety standards such as UL and VDE approvals before integration into certified designs.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and compact DIP packaging are required for single-channel signal isolation. Consider the specific CTR rank needed for the driving circuit requirements. Evaluate thermal management capabilities within the operating temperature range. Compare alternative models if surface mount or higher channel counts are necessary for the design.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP781 series of photocouplers designed for general-purpose isolation applications. The series utilizes advanced semiconductor technology to achieve high reliability and fast response times. Variants within the family differ primarily in package dimensions and lead configurations to suit various mounting requirements.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes may include other Toshiba transistor output optocouplers with similar isolation ratings and package types. Cross-reference specifications for current transfer ratio and breakdown voltage to ensure functional equivalence. Verify that any replacement maintains the same safety certifications and physical footprint constraints.