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MF-USML260/6-2
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Product Detailed Parameters
- Description：PTC RESET FUSE 6V 2.6A 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)：2.6 A
- Current - Trip (It)：5.2 A
- Current - Max：50 A
- Time to Trip：5 s
- Resistance - Initial (Ri) (Min)：4 mOhms
- Resistance - Post Trip (R1) (Max)：30 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-USML260/6-2 is a surface-mount polymer positive temperature coefficient (PPTC) resettable fuse from the Multifuse USML series. Designed for overcurrent protection in space-constrained applications, this component utilizes a polymeric PTC technology that responds to excessive current by increasing resistance to limit flow. The device operates within a standard voltage range and is rated for a specific hold current, tripping under fault conditions to protect downstream circuitry. It features a compact SMD package suitable for automated assembly processes.
Feature Summary
- Polymer PTC technology provides automatic reset capability after fault clearance
- Compact surface-mount design optimizes PCB real estate
- Eliminates thermal trip issues associated with traditional bimetallic fuses
- Offers robust protection against short circuits and overcurrent events
Applications
- Automotive circuit protection systems
- High-reliability electronic equipment overcurrent safeguarding
- Industrial transportation and communication infrastructure
- Consumer electronics power input protection
Procurement Notes
Verify the specific electrical ratings including hold current and trip current against the official Bourns datasheet for the MF-USML260/6-2 variant. Confirm that the package type and termination style match the target PCB layout requirements. Ensure compliance with relevant safety certifications such as UL and TÜV if required for the end application. Cross-reference the manufacturer part number to avoid confusion with similar series components.
Selection Notes
Select this component when space-saving surface-mount solutions are required for overcurrent protection. Consider the USML series for applications demanding high reliability in automotive or industrial environments. Evaluate the thermal environment and voltage requirements to ensure the PTC characteristics align with the circuit's operational parameters. This series offers flexibility for designers working with limited board area compared to radial leaded alternatives.
Part Context
The MF-USML260/6-2 belongs to the Multifuse USML series of polymer PTC resettable fuses manufactured by Bourns Inc. This series is engineered for widespread circuit protection applications, offering a cost-effective alternative to traditional fuses. The USML line is characterized by its ability to provide consistent performance across varying temperatures and its suitability for surface-mount technology integration in modern electronic assemblies.
Replacement Considerations
Consult the official Bourns replacement guide for direct equivalents. Verify that any substitute maintains identical hold current, trip current, and voltage ratings. Ensure the replacement component matches the physical footprint and terminal configuration to guarantee compatibility with existing PCB designs without requiring layout modifications.
