FSMD050-30-R

Ptc Resettable Fuses Overview

The FSMD050-30-R is a surface-mount PTC resettable fuse in an 1812 (4532 Metric) concave package. It features a hold current of 0.3A, trip current of 1A, and a maximum voltage rating of 30V. The device operates within a temperature range of -40°C to +85°C. Initial resistance is typically 150mΩ, with a maximum post-trip resistance of 1Ω. Power dissipation is rated at 800mW.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through automatic thermal tripping mechanism
• Supports surface mount assembly via standard 1812 footprint
• Maintains circuit continuity after fault condition removal

Ptc Resettable Fuses Applications

• Telecom equipment circuit protection
• Portable electronic device power lines
• Battery pack overcurrent safeguarding

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix '30' indicates the 30V rating and 0.3A hold current configuration. Confirm the 1812 package dimension matches the design layout. Ensure the operating temperature range meets the environmental requirements of the target application.

Ptc Resettable Fuses Selection Notes

Select this component when a low-profile surface mount solution is required for circuits operating up to 30V. The 0.3A hold current suits low-power applications. Consider the 150mΩ initial resistance for minimal voltage drop impact on sensitive loads.

Ptc Resettable Fuses Part Context

This part belongs to the FSMD series of PPTC devices from RFE/Fuzetec. These components are designed for high-reliability overcurrent protection in compact electronic assemblies. The series offers various current and voltage ratings across multiple package sizes.

Ptc Resettable Fuses Replacement Considerations

FSMD050-R serves as a general series equivalent. Verify voltage and current ratings match exactly before substitution.