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Product Detailed Parameters
- Description：PTC RESET FUSE
- Series：YQ
- Mfr：Amphenol Advanced Sensors (Thermometrics)
- Package：Bulk
- Type：Ceramic
- Voltage - Max：-
- Current - Hold (Ih) (Max)：-
- Current - Trip (It)：-
- Current - Max：-
- Time to Trip：-
- Resistance - Initial (Ri) (Min)：-
- Resistance - Post Trip (R1) (Max)：-
- Resistance - 25°C (Typ)：100 Ohms
- Operating Temperature：-
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：-
- Package / Case：-
- Size / Dimension：-
- Height - Seated (Max)：-
- Thickness (Max)：-
- Lead Spacing：-
Download product information
Overview
The YQS5814 is a ceramic Positive Temperature Coefficient (PTC) resettable fuse manufactured by Amphenol Advanced Sensors (Thermometrics). Classified under PTC thermistors, this component functions as a self-resetting overcurrent protection device. It is designed to interrupt circuit current when excessive heat generated by overcurrent conditions triggers the polymer switch mechanism. The device provides reliable protection against short circuits and overloads without requiring manual replacement after fault clearance.
Feature Summary
- Self-resetting overcurrent protection capability
- Ceramic PTC construction for thermal stability
- Automatic circuit interruption upon overheat detection
Applications
- Overcurrent protection in electronic circuits
- Short circuit protection components
- Industrial control system safety devices
Procurement Notes
Verify the specific holding current (Ih) and trip current ratings against the official datasheet before procurement, as these parameters define the operational threshold. Confirm that the package type and lead time align with production schedules. Ensure the selected component meets the required voltage and current specifications for the target application to guarantee effective circuit protection performance.
Selection Notes
Select this component based on its classification as a PTC resettable fuse suitable for applications requiring automatic recovery from overcurrent events. Consider the ceramic material properties for thermal resilience. Evaluate the factory pack quantity requirements, noting standard packaging may involve specific unit counts. Ensure the device's physical dimensions and mounting style fit the design constraints of the target assembly.
Part Context
This part belongs to the Thermometrics product line within Amphenol Advanced Sensors, specializing in temperature sensing and protection components. The YQS5814 represents the company's offering in the PTC thermistor category, distinct from their NTC temperature sensors. It serves as a critical safety element in systems where reliable, non-fusing overcurrent protection is required to maintain operational integrity.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility carefully if considering alternative manufacturers, ensuring matching electrical characteristics such as hold current, trip current, and voltage ratings are met.
