TCLT1115

Overview

The TCLT1115 is a transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an infrared emitting diode coupled to a phototransistor with a base terminal for enhanced switching performance. The device provides electrical isolation of 5000 Vrms between input and output circuits. It is housed in a compact 6-SOP, 5-pin surface mount package designed for space-constrained applications requiring reliable signal transmission across isolated barriers.

Feature Summary

• Integrated base terminal on the phototransistor output stage
• High voltage insulation capability between input and output
• Surface mount packaging for automated assembly

Applications

• General purpose signal isolation in industrial control systems
• Interface circuits for microcontrollers and logic families
• Power supply feedback loops requiring galvanic isolation

Procurement Notes

Verify the specific ordering suffix against the official Vishay datasheet to ensure correct packaging and tape-and-reel specifications. Confirm RoHS compliance status and lead-free material declarations match project requirements. Check for recent Product Change Notifications (PCN) that may affect pinout or material composition before finalizing procurement orders.

Selection Notes

Select this component when base-controlled switching speed is required compared to standard phototransistor outputs. Ensure the SOP-6L5 package footprint matches the PCB layout constraints. Verify that the 5000 Vrms isolation rating meets the safety standards applicable to the target equipment design and regulatory environment.

Part Context

This part belongs to the Vishay transistor output optocoupler family. It shares functional similarities with other models in the series but is distinguished by its specific base-terminal configuration and SOP-6L5 package form factor. It serves as a solid-state alternative to mechanical relays in low-power switching applications.

Replacement Considerations

Direct substitutes include parts from the same Vishay family with identical pinouts and electrical characteristics. Verify compatibility with existing PCB footprints and thermal management requirements when considering cross-brand alternatives.