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MF-USML175/6-2
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Product Detailed Parameters
- Description：PTC RESET FUSE 6V 1.75A 1210
- Series：Multifuse®, MF-USML/X
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：6V
- Current - Hold (Ih) (Max)：1.75 A
- Current - Trip (It)：3.5 A
- Current - Max：50 A
- Time to Trip：800 ms
- Resistance - Initial (Ri) (Min)：6 mOhms
- Resistance - Post Trip (R1) (Max)：50 mOhms
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- 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)：0.031" (0.80mm)
- Lead Spacing：-
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Overview
The Bourns MF-USML175/6-2 is a surface-mount polymer positive temperature coefficient (PPTC) resettable fuse from the Multifuse USML series. Designed for overcurrent protection, this component features a hold current of 1.75 A and a trip current of 3.5 A. It operates with a maximum voltage rating of 6 V and supports a maximum fault current of 60 A. The device utilizes a compact SMD package suitable for automated assembly processes.
Feature Summary
- Provides automatic circuit recovery after fault conditions without manual replacement
- Offers robust protection against short circuits and overcurrent events in low-voltage applications
- Eliminates thermal tripping issues associated with traditional bimetallic fuses
Applications
- Overcurrent protection for portable electronic devices
- Surge protection in consumer electronics power lines
- Circuit safeguarding in automotive infotainment systems
Procurement Notes
Verify that the specific suffix indicates the correct lead-free status and tape-and-reel packaging configuration required for your manufacturing line. Confirm RoHS compliance documentation matches the production batch to ensure adherence to environmental regulations for electronic assemblies.
Selection Notes
Select this component when designing circuits requiring low operating voltages and high fault current tolerance. Ensure the ambient temperature range does not exceed the device's rated limits to prevent premature tripping. Validate that the physical footprint aligns with the PCB layout constraints for surface-mount technology integration.
Part Context
This part belongs to the Multifuse USML series, which expands Bourns' portfolio of high-temperature PPTC devices. The series is engineered for environments demanding robust protection with minimal spatial requirements. It complements other resettable fuses by offering specialized performance characteristics for sensitive low-voltage digital logic and power supply inputs.
Replacement Considerations
Direct substitutes must match the 1.75 A hold current and 6 V rating. Verify that alternative PPTC devices maintain compatible trip characteristics and package dimensions to ensure seamless integration without redesigning the printed circuit board or altering thermal management strategies.
