TCET1107

Overview

The TCET1107 is a single-channel optoisolator manufactured by Vishay Semiconductor Opto Division. It features a phototransistor output optically coupled to a gallium arsenide infrared-emitting diode within a 4-DIP package. The device provides high isolation voltage of 5000Vrms, ensuring circuit protection against electrical shock. Key electrical parameters include a minimum current transfer ratio of 80% and a maximum of 160%, both measured at a forward current of 5mA. This component is designed for applications requiring reliable signal transmission with robust electrical isolation between input and output circuits.

Feature Summary

• High common mode rejection capability
• Low temperature coefficient of current transfer ratio
• Reinforced isolation for electrical shock protection

Applications

• Industrial control systems
• Power supply feedback loops
• Signal isolation in communication interfaces

Procurement Notes

Verify the specific datasheet version from Vishay Semiconductor Opto Division before procurement. Confirm that the 4-DIP package matches your PCB footprint requirements. Ensure the operating environment does not exceed the specified isolation voltage ratings. Cross-reference the current transfer ratio specifications with your circuit design constraints to guarantee proper functionality under varying temperature conditions.

Selection Notes

Select the TCET1107 when high isolation voltage and stable current transfer characteristics are required. Consider its low temperature coefficient for applications experiencing significant thermal variations. Evaluate the 5000Vrms isolation rating against your system's safety standards. Compare the 80-160% CTR range with your drive circuit capabilities to ensure adequate signal transmission efficiency.

Part Context

The TCET1107 belongs to Vishay's family of transistor-output optoisolators. It shares design principles with similar models like the TCET1100 series, offering comparable isolation features. The component utilizes gallium arsenide technology for the infrared emitter, providing efficient optical coupling. Its 4-DIP packaging facilitates through-hole mounting in various electronic assemblies requiring galvanic isolation.

Replacement Considerations

Consult official Vishay documentation for direct substitutes. Verify pin compatibility and electrical parameter equivalence before replacing the TCET1107 with alternative components. Ensure any replacement maintains the 5000Vrms isolation rating and similar current transfer ratio specifications.