YQS8067

Overview

The YQS8067 is a ceramic Positive Temperature Coefficient (PTC) resettable fuse manufactured by Amphenol Advanced Sensors under the Thermometrics brand. Designed for through-hole radial mounting, this disc-shaped component provides overcurrent protection with a maximum voltage rating of 265V and a hold current (Ih) of 85 mA. The device operates as a self-resetting safety mechanism, automatically increasing resistance to limit fault currents upon thermal activation.

Feature Summary

• Self-resetting PTC thermistor functionality for automatic circuit recovery after fault clearance
• Ceramic construction suitable for robust through-hole radial PCB integration
• Disc form factor designed for compact electronic assembly applications

Applications

• Overcurrent protection in power supply circuits
• Protection of motor drive systems
• Safety components in industrial control electronics

Procurement Notes

Verify the specific datasheet version for precise trip characteristics and derating curves. Confirm that the 85 mA hold current aligns with the target application's steady-state requirements. Ensure the 265V maximum voltage rating exceeds the system's peak operating voltage. Check for any RoHS compliance documentation if required by the manufacturing facility.

Selection Notes

Select this component when a self-resetting protection mechanism is preferred over traditional fuses to minimize maintenance downtime. The 85 mA rating suits low-current signal or control lines rather than high-power distribution. Consider the physical dimensions of the radial leaded package to ensure adequate spacing on the printed circuit board layout.

Part Context

This part belongs to the Thermometrics line of PTC thermistors from Amphenol Advanced Sensors. It serves as a reusable alternative to single-use fusible links, offering reliable protection against short circuits and overloads in sensitive electronic equipment without requiring manual replacement after a fault event.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided data.