MF-USHT016KX-2

Overview

The Bourns MF-USHT016KX-2 is a high-temperature PolySwitch resettable fuse designed for overcurrent protection in demanding environments. It features a hold current of 16 A and a trip current of 32 A, ensuring reliable circuit interruption under fault conditions. The device operates within an extended temperature range of -40°C to +125°C, making it suitable for automotive and industrial applications where thermal stability is critical. With a maximum voltage rating of 32 VDC and a typical resistance of 1.6 mΩ, it offers low power loss during normal operation.

Feature Summary

• Provides automatic resettable overcurrent protection without manual intervention
• Engineered for stable performance in high-temperature operational environments
• Offers robust surge withstand capability to protect sensitive electronic components

Applications

• Automotive electronics requiring AEC-Q200 compliance
• Industrial control systems with high thermal stress
• Battery management systems needing reliable overcurrent protection

Procurement Notes

Verify the specific suffix codes on the datasheet to ensure the correct package style and termination type match your PCB layout requirements. Confirm that the ambient operating temperature does not exceed the rated limits to maintain the specified hold current performance. Check for RoHS compliance status if required by your manufacturing standards. Ensure proper derating factors are applied when designing for continuous high-current loads.

Selection Notes

Select this component based on the required hold current of 16 A and the system's maximum operating voltage of 32 VDC. Consider the physical size constraints as the device is available in specific surface-mount packages. Evaluate the thermal environment to ensure the 125°C rating aligns with the application's peak temperatures. Compare the I²t value against the expected fault energy to guarantee effective protection without nuisance tripping.

Part Context

This part belongs to the MF-USHT series, which expands Bourns' portfolio of high-temperature PPTC resettable fuses. These devices are specifically engineered to replace traditional fusible links in applications where reset functionality is necessary. The series is characterized by its ability to withstand high ambient temperatures while maintaining electrical integrity, serving as a key safety component in modern electronic designs.

Replacement Considerations

Consult official cross-reference lists for direct substitutes. Verify that any replacement maintains the same hold current, trip current, and voltage ratings. Ensure the alternative device supports the required operating temperature range and package dimensions for board compatibility.