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MF-USML500/6-2
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Product Detailed Parameters
- Description：PTC RESET FUSE 6V 5A 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)：5:00 AM
- Current - Trip (It)：10:00 AM
- Current - Max：50 A
- Time to Trip：2 s
- Resistance - Initial (Ri) (Min)：1 mOhms
- Resistance - Post Trip (R1) (Max)：12 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)：0.047" (1.20mm)
- Lead Spacing：-
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Overview
The MF-USML500/6-2 is a polymeric PTC resettable fuse manufactured by Bourns Inc. It features a holding current of 5 A and a trip current of 10 A, with a maximum voltage rating of 6 VDC. The device is designed for surface mount applications in the 1210 (3225 Metric) concave package. It provides overcurrent protection by increasing resistance when excessive current flows, resetting automatically once conditions normalize.
Feature Summary
- Polymeric positive temperature coefficient technology for automatic reset functionality
- Surface mount construction optimized for automated assembly processes
- Concave package design suitable for low-profile circuit board integration
Applications
- Portable electronic devices requiring compact overcurrent protection
- Consumer electronics circuits operating at low voltage levels
- Battery-powered equipment needing resettable fuse solutions
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific datasheet revisions prior to procurement. Ensure storage conditions align with manufacturer recommendations to maintain performance integrity. Cross-reference part numbers carefully to distinguish between similar series variants.
Selection Notes
Select this component based on the 6 VDC maximum voltage requirement and 5 A holding current specifications. Evaluate the 1210 package dimensions against available PCB real estate constraints. Consider the thermal environment and expected fault currents to ensure adequate protection margins without nuisance tripping during normal operation.
Part Context
This part belongs to Bourns' USML series of surface mount PTC resettable fuses. These components are engineered for high-reliability applications where space is limited. The series offers various current ratings within standardized footprints, facilitating design flexibility across different product lines while maintaining consistent protection characteristics.
Replacement Considerations
Consult official Bourns documentation for verified substitute part numbers. Direct replacements must match voltage, current, and package specifications. Generic equivalents may not provide identical performance characteristics or reliability standards.
