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MF-RX075/72-2
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Product Detailed Parameters
- Description：PTC RESET FUSE 72V 750MA RADIAL
- Series：MF-RX/72
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：-
- Voltage - Max：72V
- Current - Hold (Ih) (Max)：750 mA
- Current - Trip (It)：1.5 A
- Current - Max：40 A
- Time to Trip：6.3 s
- Resistance - Initial (Ri) (Min)：-
- Resistance - Post Trip (R1) (Max)：-
- Operating Temperature：-
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.409" Dia x 0.122" W (10.40mm x 3.10mm)
- Height - Seated (Max)：0.630" (16.00mm)
- Thickness (Max)：-
- Lead Spacing：0.201" (5.10mm)
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Overview
The Bourns MF-RX075/72-2 is a radial leaded PTC resettable fuse from the Multifuse MF-RX/72 series. It features a hold current of 750 mA and a trip current of 1.5 A, rated for a maximum voltage of 72 VDC. The component has a typical resistance of 0.4 Ohms and operates within a temperature range of -40°C to +85°C. Physical dimensions include a diameter of 7.4 mm and a height of 13.4 mm, with a lead spacing of 5.1 mm.
Feature Summary
- Provides automatic circuit protection through positive temperature coefficient polymer technology that resets after fault clearance.
- Designed for PCB mounting with radial leads for straightforward integration into electronic assemblies.
Applications
- Overcurrent protection in consumer electronics
- Circuit safeguarding in office equipment
- Protection in telecommunications infrastructure
Procurement Notes
Verify the specific package designation upon ordering, as suffixes may indicate variations in tape and reel specifications or manufacturing origin. Confirm RoHS compliance status and datasheet revision dates to ensure alignment with current environmental regulations and design requirements before finalizing procurement.
Selection Notes
Select this component when a radial leaded form factor is required for circuits operating up to 72 VDC. Ensure the application current remains below the 750 mA hold threshold while accounting for ambient temperature derating curves provided in the official documentation to prevent nuisance tripping during normal operation.
Part Context
This part belongs to the Multifuse MF-RX/72 series, which offers a balance of compact size and reliable overcurrent protection. The series is widely utilized in industrial and commercial applications where space constraints necessitate small footprints while maintaining robust thermal performance standards.
Replacement Considerations
Consult the official Bourns replacement guide for verified substitutes. Cross-reference parameters such as hold current, voltage rating, and physical dimensions to ensure compatibility with existing board layouts and thermal management systems.
