FSMD035-30-R

Ptc Resettable Fuses Overview

The FSMD035-30-R is a surface-mount polymeric positive temperature coefficient (PPTC) resettable fuse manufactured by Fuzetec. It functions as an overcurrent protection device for electronic circuits, utilizing a polymer composite that increases resistance significantly upon heating from fault currents. The component is designed to automatically restore conductivity once the fault condition is removed and the device cools down. Key electrical parameters include a hold current of 0.35 A and a trip current of 1.0 A, with a maximum voltage rating of 30 V DC. It features a low initial resistance and is housed in a compact SMD package suitable for automated assembly processes.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit reset after fault clearance without manual intervention
• Offers dual protection against overcurrent and excessive temperature conditions
• Utilizes polymer technology for rapid response to fault currents
• Designed for surface mount integration into printed circuit boards

Ptc Resettable Fuses Applications

• Portable consumer electronics battery packs
• USB peripheral port protection
• Automotive infotainment system circuits
• Industrial control board input stages

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'R' corresponds to the required tape and reel packaging configuration for your manufacturing line. Confirm that the 30V DC voltage rating aligns with your system's maximum operating voltage under all transient conditions. Ensure the PCB layout supports adequate thermal dissipation to maintain the specified hold current performance during normal operation.

Ptc Resettable Fuses Selection Notes

Select this component when a resettable protection mechanism is preferred over single-use fuses to reduce maintenance costs. The 0.35A hold current makes it suitable for low-power signal lines or small battery cells. Consider the trip time characteristics at expected fault currents to ensure compatibility with downstream component sensitivity. Verify space constraints on the PCB against the physical dimensions of the SMD package.

Ptc Resettable Fuses Part Context

This part belongs to the FSMD series of surface-mount PPTC devices from Fuzetec. The series offers various current ratings and voltage options to cover diverse application needs. The FSMD series is characterized by its reliability in harsh environments and compliance with international safety standards. It serves as a critical passive component in modern electronic design for enhancing system robustness.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes must match the 0.35A hold current, 1.0A trip current, and 30V rating. Check alternative manufacturers such as Bourns or Littelfuse for equivalent SMD PPTC fuses. Ensure the replacement part has compatible thermal characteristics and package dimensions to fit existing footprints without reflow profile adjustments.