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Product Detailed Parameters
- Description：PTC RESET FUSE RADIAL DISC
- Series：YS
- 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：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：-
- Height - Seated (Max)：-
- Thickness (Max)：-
- Lead Spacing：-
Download product information
Overview
The YS5631 is a radial disc PTC resettable fuse manufactured by Amphenol Advanced Sensors (Thermometrics). It functions as a self-resetting overcurrent protection device designed for circuit safeguarding. The component utilizes positive temperature coefficient characteristics to limit current flow during fault conditions, automatically restoring conductivity once the fault is removed and the device cools.
Feature Summary
- Self-resetting overcurrent protection mechanism
- Radial disc package configuration
- Positive temperature coefficient material properties
Applications
- General circuit protection
- Overcurrent safeguarding in electronic assemblies
Procurement Notes
Verify the specific datasheet version for precise electrical ratings such as hold current, trip current, and voltage ratings before integration. Confirm that the radial disc form factor aligns with the target PCB layout requirements. Ensure the thermal environment supports the necessary cooling cycle for reliable self-resetting operation after a fault event.
Selection Notes
Select this component when a non-latching, self-resetting protection solution is required for radial mounting applications. Evaluate the thermal dissipation capabilities of the assembly to ensure the device can recover from trip states effectively. Compare against standard fuses where maintenance-free operation is prioritized over single-use sacrificial protection.
Part Context
YS5631 belongs to the Thermometrics line of PTC resettable fuses within the Amphenol Advanced Sensors portfolio. This series provides robust overcurrent protection solutions characterized by their ability to automatically reset after fault clearance, distinguishing them from traditional one-time fusible links.
Replacement Considerations
Consult official substitution lists for equivalent radial PTC resettable fuses with matching hold and trip current specifications. Verify package compatibility and thermal performance characteristics when considering alternative manufacturers.
