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MF-USHT150KX/12-2
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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：1 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：0.135" L x 0.110" W (3.43mm x 2.80mm)
- Height - Seated (Max)：-
- Thickness (Max)：0.041" (1.05mm)
- Lead Spacing：-
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Overview
The MF-USHT150KX/12-2 is a polymeric PTC resettable fuse from the Bourns MF-USHT series, designed for surface mount applications in the 1210 (3225 Metric) package. It features a hold current of 1.5 A and a trip current of 4.5 A, with a maximum voltage rating of 12 V. The device exhibits a typical resistance of 300 mOhms and can withstand a maximum fault current of 40 A. It is engineered to operate reliably at high temperatures, providing overcurrent protection for sensitive electronic circuits.
Feature Summary
- High temperature operation capability for demanding environments
- Surface mount design in a compact 1210 package
- Polymeric positive temperature coefficient technology
- Resettable functionality after fault condition removal
Applications
- Overcurrent protection in portable electronics
- Circuit protection for automotive modules
- Power supply input protection
- Signal line surge protection
Procurement Notes
Verify the specific ordering suffix to ensure correct packaging and tape-and-reel configuration. Confirm that the component meets the required thermal and electrical specifications for the target application environment. Cross-reference the datasheet parameters against system requirements to ensure compatibility with voltage and current limits.
Selection Notes
Select this component when high-temperature stability is critical for the circuit protection strategy. The 1210 footprint offers a balance between current handling capacity and board space efficiency. Ensure the operating ambient temperature range aligns with the device's rated performance characteristics to maintain reliable trip behavior.
Part Context
This part belongs to the MF-USHT series, which expands Bourns' portfolio of high-temperature PPTC resettable fuses. The series is designed to provide robust protection in applications where standard components may fail due to thermal stress. It complements other Bourns protection devices by offering a specialized solution for elevated temperature scenarios.
Replacement Considerations
Consider the MF-USHT125KX/12-2 for applications requiring a lower hold current of 1.25 A while maintaining the same package and voltage ratings. Verify pinout and thermal characteristics before substituting to ensure mechanical and electrical compatibility.
