PFSM.075.2

Ptc Resettable Fuses Overview

The PFSM.075.2 is a surface-mount polymeric positive temperature coefficient (PPTC) resettable fuse manufactured by Schurter Inc. It features a holding current of 750 mA and a maximum voltage rating of 30 VDC. The device has a trip current of 1.5 A and a maximum fault current capacity of 100 A. Its resistance is specified at 450 mOhms. The component is housed in a 2920 package, with physical dimensions of approximately 6.73 mm by 5.44 mm. It operates within a temperature range of -40°C to +85°C.

Ptc Resettable Fuses Feature Summary

• Polymeric PTC technology provides automatic reset functionality after fault conditions clear.
• Surface mount design facilitates automated assembly on printed circuit boards.
• Compact 2920 package footprint supports space-constrained electronic layouts.

Ptc Resettable Fuses Applications

• Overcurrent protection for portable electronic devices
• Protection circuits in consumer electronics
• Battery pack safeguarding systems

Ptc Resettable Fuses Procurement Notes

Verify the specific datasheet revision when sourcing this component, as electrical characteristics may vary between updates. Confirm that the 2920 package dimensions align with your PCB land pattern requirements. Ensure the 30VDC voltage rating meets the circuit's operational limits under all conditions. Check for RoHS compliance status if environmental regulations apply to your manufacturing process.

Ptc Resettable Fuses Selection Notes

Select this part when a compact, self-resetting overcurrent solution is required for low-voltage DC circuits. The 750mA holding current suits applications with steady-state loads near this threshold. Consider the 450mOhms resistance impact on power dissipation during normal operation. Evaluate the 100A interrupt rating against potential short-circuit scenarios in the target system design.

Ptc Resettable Fuses Part Context

This component belongs to Schurter's PFSM series of surface-mount PTC fuses. The series offers various current ratings within the same or similar package styles. It serves as an alternative to traditional fusible links in modern electronics where maintenance-free protection is preferred. The PFSM designation indicates a specific form factor optimized for SMT processes.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other Schurter PFSM variants with matching current ratings. Cross-brand replacements require verifying identical package dimensions and electrical parameters such as hold current and voltage rating. Ensure any alternative maintains the same resettable characteristic and thermal performance profile.