FSMD025-1206-R

Ptc Resettable Fuses Overview

The FSMD025-1206-R is a surface-mount PTC resettable fuse from the FSMD1206 series by RFE/Fuzetec. It features a hold current of 250 mA and a trip current of 500 mA, with a maximum voltage rating of 16 V. The device has a maximum fault current capacity of 100 A and an initial resistance of 1.4 Ω. It operates within a temperature range of -40°C to +85°C and consumes 600 mW. The component measures 3.5 mm in length, 1.8 mm in width, and 0.85 mm in height.

Ptc Resettable Fuses Feature Summary

• Solid-state polymer construction for reliable overcurrent protection
• Surface mount design optimized for high-density PCB layouts
• Faster response time compared to standard SMD devices
• Low resistance characteristics to minimize power loss

Ptc Resettable Fuses Applications

• High-density circuit board protection
• Portable electronic device circuits
• Consumer electronics power lines
• Communication equipment interfaces

Ptc Resettable Fuses Procurement Notes

Verify the specific voltage rating suffix when sourcing. The base model FSMD025-1206-R typically denotes a 16V rating, whereas variants like FSMD025-24-1206-R indicate 24V ratings. Confirm the exact electrical parameters against the manufacturer datasheet to ensure compatibility with the target circuit voltage requirements before procurement.

Ptc Resettable Fuses Selection Notes

Select this component based on the required hold current of 250 mA and the 16V maximum operating voltage. Ensure the application environment stays within the -40°C to +85°C temperature range. Consider the 1.4 Ω initial resistance for circuit impact analysis. Verify that the 100 A maximum fault current capability exceeds potential surge levels in the protected line.

Ptc Resettable Fuses Part Context

This part belongs to the FSMD1206 series of surface-mountable PTC resettable fuses manufactured by Fuzetec Technology. The series offers various hold currents and voltage ratings within the 1206 package footprint. These components serve as reusable alternatives to traditional fuses in modern electronics manufacturing.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other 1206 package PTCs with matching 250 mA hold current and 16V ratings. Cross-reference specifications such as trip current (500 mA) and resistance values to ensure functional equivalence in the specific circuit application.