TCET1110

Overview

The TCET1110 is a high-temperature optocoupler manufactured by Vishay Semiconductor Opto Division. It features a phototransistor output and provides 5000Vrms isolation voltage. The device supports a maximum collector-emitter voltage of 70V and can handle an output current of 50mA per channel. It operates with a DC input type and offers a minimum current transfer ratio of 50% at 5mA. The component is designed for through-hole installation in a tube package, ensuring reliable performance across its specified operating temperature range.

Feature Summary

• High-temperature rated construction suitable for demanding thermal environments
• Provides robust electrical isolation between input and output circuits
• Phototransistor output configuration for standard switching applications

Applications

• Industrial control systems requiring high-temperature reliability
• Power supply feedback loops
• Signal isolation in harsh environmental conditions

Procurement Notes

Verify the specific suffix or variant when ordering, as the base model may have multiple packaging or specification options. Confirm that the obsolete status does not impact long-term availability requirements for your project. Ensure the procurement source provides valid traceability documentation. Check for any recent product change notices that might affect pinout or electrical characteristics compared to legacy versions.

Selection Notes

Select this component when high-temperature operation is critical for the application environment. Consider the phototransistor output speed and current transfer ratio against system timing requirements. Evaluate the through-hole package constraints against PCB layout limitations. Compare the 5000Vrms isolation rating with the required safety standards for the target application.

Part Context

The TCET1110 belongs to Vishay's family of high-temperature optocouplers. It shares functional similarities with other models in the series but is distinguished by its specific thermal rating and output characteristics. This part is often used where standard commercial-grade optocouplers would fail due to excessive heat. It serves as a specialized solution for industrial and automotive sectors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data. Due to the obsolete status and specific high-temperature ratings, direct replacements must be verified against electrical parameters and thermal limits.