YQS5745PTO

Overview

The YQS5745PTO is a PTC thermistor from the Thermometrics PTO series, manufactured by Amphenol Advanced Sensors. It features an uncoated design with a resistance of 50 ohms at 25°C and a tolerance of 30%. The component has a switching temperature of 43°C and supports PCB mounting via radial leads. Operating conditions range from +10°C to +55°C.

Feature Summary

• Uncoated construction for direct thermal exposure
• Positive temperature coefficient behavior for circuit protection
• Radial lead configuration for through-hole PCB integration

Applications

• Overcurrent protection in electronic circuits
• Self-resetting fuse applications
• Temperature sensing in low-power devices

Procurement Notes

Verify the specific datasheet version for the YQS5745PTO to confirm exact switching characteristics and thermal response times. Ensure that the 43°C switching point aligns with the target application requirements. Confirm compliance with RoHS directives as indicated in official documentation before finalizing procurement specifications.

Selection Notes

Select this component when a self-resetting overcurrent protection device with a precise 43°C trip point is required. The 50-ohm baseline resistance suits low-voltage signal lines. Consider the uncoated form factor if thermal coupling speed is critical compared to encapsulated alternatives.

Part Context

This part belongs to the Thermometrics PTO series of standard PTC thermistors. It is designed for general-purpose circuit protection and temperature sensing. The product line emphasizes reliability in consumer electronics and industrial control systems where resettable fusing is necessary.

Replacement Considerations

No public substitute part numbers are confirmed in the provided documentation.