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MF-USHT150KX-2
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Product Detailed Parameters
- Description：PTC RESET FUSE 12V 1.5A 1210
- Series：Multifuse®, MF-USHT
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：12V
- Current - Hold (Ih) (Max)：1.5 A
- Current - Trip (It)：4.5 A
- Current - Max：40 A
- Time to Trip：5 s
- Resistance - Initial (Ri) (Min)：25 mOhms
- Resistance - Post Trip (R1) (Max)：250 mOhms
- Operating Temperature：-40°C ~ 125°C
- Grade：Automotive
- Qualification：AEC-Q200
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：1210 (3225 Metric), Concave
- Size / Dimension：0.127" L x 0.101" W (3.22mm x 2.58mm)
- Height - Seated (Max)：-
- Thickness (Max)：0.063" (1.60mm)
- Lead Spacing：-
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Overview
The Bourns MF-USHT150KX-2 is a high-temperature polymer positive temperature coefficient (PPTC) resettable fuse designed for surface-mount applications. It belongs to the MF-USHT series, offering robust circuit protection in a compact 1210 package. The device features a hold current of 150 mA and a trip current of 750 mA, ensuring reliable operation under specified thermal conditions. With a maximum voltage rating of 16 VDC and a maximum rated current of 20 A, it provides effective overcurrent safeguarding. The component operates within a temperature range of -20°C to +125°C, making it suitable for demanding environments requiring high-temperature stability.
Feature Summary
- High-temperature polymer construction for enhanced thermal stability
- Surface-mount design compatible with automated assembly processes
- Resettable functionality eliminates the need for manual replacement after fault clearance
Applications
- Consumer electronics overcurrent protection
- Portable device battery pack safeguarding
- Industrial instrumentation circuit protection
Procurement Notes
Verify the specific ordering suffix KX-2 against the manufacturer's latest datasheet to confirm packaging configuration and compliance status. Ensure that the selected variant matches the required hold and trip current specifications for the target application. Cross-reference the RoHS declaration and material composition data provided in the official documentation prior to procurement to guarantee regulatory adherence.
Selection Notes
Select this component based on its 1210 footprint and high-temperature operational range when space constraints and thermal endurance are critical. Evaluate the 16 VDC maximum voltage rating to ensure compatibility with the system's operating voltage levels. Consider the 150 mA hold current requirement to prevent nuisance tripping during normal operation while maintaining adequate protection against overcurrent events up to the specified trip threshold.
Part Context
This part is a member of the MF-USHT series, which expands Bourns' portfolio of high-temperature PPTC resettable fuses. The series is engineered to provide reliable circuit protection in applications where standard devices may fail due to elevated ambient temperatures. The MF-USHT150KX-2 specifically addresses the need for compact, surface-mount protection solutions in modern electronic designs.
Replacement Considerations
Consult the official Bourns substitution guide or datasheet for verified equivalent parts. Do not assume cross-compatibility with other series without confirming electrical parameters and physical dimensions.
