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MF-RX375/72-2-14
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Product Detailed Parameters
- Description：PTC RESET FUSE 72V 3.75A RADIAL
- Series：Multifuse®, MF-RX/72
- Mfr：Bourns Inc.
- Package：Tape & Box (TB)
- Type：Polymeric
- Voltage - Max：72V
- Current - Hold (Ih) (Max)：3.75 A
- Current - Trip (It)：7.5 A
- Current - Max：40 A
- Time to Trip：24 s
- Resistance - Initial (Ri) (Min)：30 mOhms
- Resistance - Post Trip (R1) (Max)：80 mOhms
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.926" L x 0.122" W (23.51mm x 3.10mm)
- Height - Seated (Max)：1.162" (29.51mm)
- Thickness (Max)：-
- Lead Spacing：0.402" (10.20mm)
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Overview
The Bourns MF-RX375/72-2-14 is a radial leaded polymer positive temperature coefficient (PPTC) resettable fuse from the Multifuse MF-RX/72 series. Designed for overcurrent protection, it features a 3.75 A hold current and a 7.5 A trip current at a maximum voltage of 72 VDC. The component operates within a temperature range of -40°C to +85°C and has a maximum resistance of 80 mΩ. It provides robust circuit protection against short circuits and thermal runaway in demanding environments.
Feature Summary
- Provides automatic circuit recovery after fault conditions without manual replacement
- Eliminates nuisance tripping caused by ambient temperature variations
- Offers high reliability and cost-effective protection against short circuits
Applications
- Automotive electronics circuit protection
- Industrial equipment surge and overcurrent protection
- Communication systems safeguarding
- Consumer electronics power line protection
Procurement Notes
Verify the specific ordering suffix to ensure correct packaging and lead configuration. Confirm that the hold and trip currents align with the target circuit requirements. Check for RoHS compliance status and relevant safety certifications such as UL or TÜV before finalizing procurement specifications.
Selection Notes
Select this component when a radial leaded form factor is required for through-hole PCB mounting. Ensure the operating voltage does not exceed 72 VDC and the expected fault current remains within the device's rated limits. Consider the thermal environment to guarantee proper function within the specified temperature range.
Part Context
This part belongs to the Bourns Multifuse MF-RX/72 series of PPTC resettable fuses. These components are engineered for high-voltage and high-temperature applications, offering a compact solution for space-constrained layouts while maintaining rigorous protection standards across various electronic industries.
Replacement Considerations
Consult official Bourns documentation for confirmed substitute part numbers. Verify that any alternative maintains identical electrical ratings and physical dimensions to ensure compatibility.
