TLP781(BL-LF6,F)

Transistor, Photovoltaic Output Optoisolators Overview

The TLP781(BL-LF6,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 electrical separation between input and output circuits. Key electrical parameters include a collector-emitter breakdown voltage of 80V minimum, a forward voltage of 1.3V maximum, and a current transfer ratio ranging from 200% to 600%. The component supports a maximum forward current of 60mA and operates within a temperature range of -25°C to 85°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates a GaAs infrared LED with a silicon phototransistor for efficient optical signal transmission
• Provides high insulation voltage capability of 5000 Vrms minimum for safe circuit isolation
• Features a wide current transfer ratio range to accommodate various logic interface requirements
• Complies with UL and VDE safety standards for international regulatory approval

Transistor, Photovoltaic Output Optoisolators Applications

• Office equipment control interfaces
• Household appliance switching 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 LF6 against official Toshiba documentation to confirm pin pitch and creepage distance specifications. Ensure the ordering code matches the required lead forming type for surface or through-hole mounting. Confirm RoHS compliance status and check for any end-of-life notifications prior to finalizing procurement plans.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and moderate speed are required for general-purpose signal coupling. Consider the wide CTR range for flexible biasing in digital logic applications. Evaluate thermal management needs based on the specified operating temperature limits and power dissipation ratings during continuous operation.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP781 series of transistor output optocouplers designed for general-purpose isolation tasks. The series offers multiple package variants to suit different PCB layout constraints. It serves as a standard solution for galvanic isolation in consumer electronics and industrial control systems where cost-effective and reliable signal transfer is essential.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes may include other Toshiba TLP781 variants with different suffixes indicating package style or CTR rank. Cross-manufacturer replacements require matching isolation voltage, CTR, and package dimensions. Verify functional equivalence before implementation.