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MF-USML175-2
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Product Detailed Parameters
- Description：PTC RESET FUSE 6V 1.75A 1210
- Series：Multifuse®, MF-USML
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR),Bulk
- 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：2.5 s
- Resistance - Initial (Ri) (Min)：6 mOhms
- Resistance - Post Trip (R1) (Max)：40 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 0.102" W (3.22mm x 2.58mm)
- Height - Seated (Max)：-
- Thickness (Max)：0.024" (0.60mm)
- Lead Spacing：-
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Overview
The Bourns MF-USML175-2 is a surface-mount polymer positive temperature coefficient (PPTC) resettable fuse from the USML series. It provides overcurrent protection with a hold current of 1.75 A and a trip current of 3.50 A. The device features a maximum voltage rating of 60 V DC and a high fault current capacity of 100 A. Designed for harsh environments, it operates within a temperature range of -40 °C to +85 °C and utilizes a compact SMD package.
Feature Summary
- Provides robust overcurrent protection in demanding high-voltage and high-temperature settings
- Eliminates nuisance tripping caused by ambient temperature variations
- Offers space-saving surface mount packaging for constrained layouts
Applications
- Automobile circuitry protection
- Overcurrent surge protection for high reliability electronic equipment
- Industrial transportation systems
- Communication infrastructure
- Consumer electronic equipment
Procurement Notes
Verify the specific suffix codes against official datasheets to confirm exact electrical ratings and package dimensions. Ensure compliance with RoHS directives and material declaration requirements for your manufacturing process. Confirm that the selected component meets the thermal management needs of your final assembly environment.
Selection Notes
Select this component when space-constrained designs require reliable resettable overcurrent protection. Consider the 1.75 A hold current and 60 V rating for suitability in low-voltage DC circuits. Evaluate the operating temperature range to ensure compatibility with the environmental conditions of the target application.
Part Context
This part belongs to the Multifuse® Polymer PTC Resettable Fuses family, specifically the Surface Mount (SMD) Low Ohmic Series. These devices are engineered to provide cost-effective circuit safeguarding while reducing short circuit risks in various industrial and consumer applications.
Replacement Considerations
Consult official substitution guides for equivalent PPTC devices with matching hold current and voltage ratings. Verify package compatibility and thermal characteristics before replacing components in existing designs.
