TCLT1017

Overview

The TCLT1017 is a transistor output optocoupler from Vishay Semiconductor Opto Division. It integrates a gallium arsenide infrared-emitting diode optically coupled to a phototransistor within a compact 4-lead LSOP surface-mount package. The device provides electrical isolation with a rated voltage of 5000Vrms. Key electrical characteristics include a DC forward current maximum of 60 mA and an output channel current rating of 50 mA. The collector-emitter saturation voltage is specified at 0.2 V under standard test conditions, ensuring efficient switching performance in digital isolation applications.

Feature Summary

• Integrates a gallium arsenide infrared-emitting diode with a phototransistor for high-speed signal transmission
• Provides robust electrical isolation capability rated at 5000Vrms between input and output circuits
• Utilizes a compact 4-lead LSOP surface-mount package designed for automated assembly processes

Applications

• Digital signal isolation in communication interfaces
• Switching power supply feedback loops
• Microcontroller input/output isolation
• Industrial control system signal conditioning

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure compliance with RoHS directives as indicated in product documentation. Cross-reference the component marking code with the latest production change notifications to guarantee authenticity and traceability during procurement.

Selection Notes

Select this component when a low-profile surface-mount solution is required for galvanic isolation. Evaluate the 5000Vrms isolation rating against system safety requirements. Confirm that the 60 mA forward current limit and 50 mA output current capacity meet the load drive demands of the target application circuit design.

Part Context

This component belongs to the TCLT101 series of transistor output optocouplers manufactured by Vishay Semiconductor Opto Division. The series is characterized by its use of gallium arsenide LEDs and phototransistors housed in small outline packages. It serves as a standard solution for isolating low-voltage logic circuits from higher voltage domains in electronic systems.

Replacement Considerations

Direct pin-compatible replacements may include other Vishay LSOP optocouplers or industry-standard equivalents such as the PC123 series. Verify isolation voltage ratings and CTR ranges before substitution to ensure functional equivalence in the existing circuit design.