PFUF.005.2

Ptc Resettable Fuses Overview

The PFUF.005.2 is a polymer PTC self-resetting fuse from the Schurter PFUF series, designed for surface-mount technology (SMT) applications in the 1210 (3225 metric) package. It features a hold current of 50 mA and a trip current of 100 mA, with a maximum voltage rating of 6 VDC. The component offers a maximum fault current capacity of 40 A and an initial resistance of 900 mOhms. It operates within a temperature range of -40°C to +85°C and has a maximum height of 2.8 mm.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit protection through self-resetting polymer PTC thermistor technology
• Designed for compact surface-mount PCB integration in the 1210 footprint
• Offers overcurrent protection against short circuits and excessive load conditions

Ptc Resettable Fuses Applications

• Portable electronic device battery protection
• USB port overcurrent protection
• Low-voltage consumer electronics circuit safeguarding

Ptc Resettable Fuses Procurement Notes

Verify the specific hold and trip current ratings against the official datasheet before procurement, as values are critical for low-current applications. Confirm the SMT package dimensions and thermal characteristics match the target PCB layout requirements. Ensure compliance with RoHS directives if required by the end product specifications.

Ptc Resettable Fuses Selection Notes

Select this component for circuits requiring precise low-current protection where space is limited. The 1210 package allows for high-density board layouts. Consider the thermal environment, as PTC performance is temperature-dependent. Verify that the 6VDC rating aligns with the system voltage to ensure proper operation without nuisance tripping.

Ptc Resettable Fuses Part Context

This part belongs to the Schurter PFUF series of polymer PTC resettable fuses. These components are engineered for high-reliability overcurrent protection in modern electronic assemblies. The series is characterized by its small form factor and ability to withstand repeated fault events without replacement, making it suitable for inaccessible or hard-to-service devices.

Ptc Resettable Fuses Replacement Considerations

Direct replacements must match the 1210 package, 6VDC rating, and similar electrical characteristics. Verify that any substitute component maintains the same hold and trip current thresholds to ensure circuit compatibility.