MF-FSHT010KX-2

Ptc Resettable Fuses Overview

The Bourns MF-FSHT010KX-2 is a surface-mount polymer positive temperature coefficient (PPTC) resettable fuse designed for high-temperature applications. It features a hold current of 100 mA and a trip current of 500 mA, with a maximum voltage rating of 16 VDC. The device has a maximum resistance of 7.5 Ohms and can withstand a maximum fault current of 40 A. It operates within a temperature range of -40°C to +125°C and is housed in an 0805 (2012 metric) package with dimensions of 2.0 mm length, 1.25 mm width, and 0.65 mm height.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through automatic resistance increase during fault conditions
• Designed for reliable operation in high-temperature environments up to 125°C
• Compact surface-mount form factor suitable for space-constrained PCB layouts

Ptc Resettable Fuses Applications

• Portable electronics and handheld devices
• Battery pack protection circuits
• Consumer appliance power management
• Industrial control system input/output protection

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'KX' against the manufacturer's latest datasheet to confirm compliance with RoHS directives and halogen-free requirements. Ensure that the selected packaging format, such as cut tape or reel, matches the automated assembly equipment specifications. Confirm that the operating temperature range aligns with the thermal profile of the final application environment to prevent premature tripping or failure.

Ptc Resettable Fuses Selection Notes

Select this component when circuit protection is required for low-voltage lines operating at 16 VDC or less. The 100 mA hold current makes it suitable for protecting sensitive signal lines or low-power data interfaces. Consider the 125°C maximum operating temperature capability if the device will be exposed to elevated ambient temperatures or self-heating effects during normal operation without nuisance tripping.

Ptc Resettable Fuses Part Context

This part belongs to the Multifuse FSHT series, which is specifically engineered for high-temperature stability. Unlike standard PPTC devices, the FSHT series maintains consistent performance characteristics across a wider thermal range, making it ideal for automotive under-hood electronics or industrial equipment where ambient temperatures frequently exceed standard commercial limits.

Ptc Resettable Fuses Replacement Considerations

Cross-reference with other Bourns Multifuse SMD series parts offering similar 100 mA hold current and 0805 footprint. Verify that any substitute component meets the same 125°C maximum operating temperature rating and 16 VDC voltage requirement to ensure equivalent circuit protection performance.