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MF-USML450-2
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Product Detailed Parameters
- Description：PTC RESET FUSE 6V 4.5A 1210
- Series：Multifuse®, MF-USML
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR)
- Type：Polymeric
- Voltage - Max：6V
- Current - Hold (Ih) (Max)：4.5 A
- Current - Trip (It)：9:00 AM
- Current - Max：50 A
- Time to Trip：2 s
- Resistance - Initial (Ri) (Min)：1 mOhms
- Resistance - Post Trip (R1) (Max)：15 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)：0.047" (1.20mm)
- Lead Spacing：-
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Overview
The Bourns MF-USML450-2 is a high-temperature PPTC resettable fuse from the MF-USHT series. It provides overcurrent protection for circuits requiring thermal resilience. The component functions as a self-resetting device that trips upon excessive current flow, offering reliable circuit safeguarding in demanding environments without permanent damage to the element.
Feature Summary
- High temperature capability within the MF-USHT series
- Self-resetting polymeric positive temperature coefficient technology
- Designed for robust overcurrent protection applications
Applications
- Automotive electronics
- Industrial equipment
- Consumer electronics
Procurement Notes
Verify the specific datasheet for the MF-USML450-2 variant to confirm exact holding and tripping currents. Ensure compatibility with the target operating temperature range defined by the MF-USHT series specifications. Cross-reference the package style and termination details against the design requirements before finalizing procurement.
Selection Notes
Select this component when high thermal stability is required alongside standard PPTC functionality. Consider the MF-USHT series characteristics for applications exceeding standard temperature ratings. Evaluate the specific current thresholds and voltage ratings against the circuit's maximum operational parameters to ensure adequate protection margins.
Part Context
This part belongs to the MF-USHT series of high-temperature PPTC resettable fuses manufactured by Bourns. The series extends the capabilities of standard polymeric devices to handle more rigorous thermal conditions. It represents a specialized subset of Bourns' protective component portfolio focused on durability.
Replacement Considerations
Consult official Bourns documentation for direct substitutes within the MF-USHT family. Verify that any alternative maintains identical high-temperature ratings and electrical performance characteristics. Generic PPTC replacements may not meet the specific thermal requirements of this series.
