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MF-RX375/72-AP
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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)：1.161" (29.50mm)
- Thickness (Max)：-
- Lead Spacing：0.402" (10.20mm)
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Overview
The Bourns MF-RX375/72-AP is a radial leaded PTC resettable fuse from the Multifuse MF-RX/72 series. It features a 3.75 A hold current and a 7.5 A trip current, rated for a maximum voltage of 72 VDC. The component has a maximum resistance of 80 mΩ and a minimum resistance of 30 mΩ. It operates within a temperature range of -40°C to +85°C and dissipates up to 3.2 W. The device measures 23.51 mm in length, 7.4 mm in diameter, and 3.1 mm in height, with a 10.2 mm lead spacing.
Feature Summary
- Provides overcurrent protection through automatic circuit interruption upon thermal activation
- Offers reusable functionality by resetting automatically after fault conditions clear
- Designed for robust performance in high-voltage and high-temperature environments
Applications
- Overcurrent and surge protection for automotive electronic circuits
- Protection for high-reliability industrial and communication equipment
- Circuit safeguarding in consumer electronics and security systems
Procurement Notes
Verify that the suffix AP corresponds to the specific Ammo Pack packaging configuration required for automated assembly processes. Confirm that the 72 VDC rating and 3.75 A hold current align precisely with the target circuit design parameters before finalizing procurement orders.
Selection Notes
Select this component when radial leaded mounting is preferred over surface mount options for the MF-RX/72 series. Ensure the application requires a 72 VDC maximum rating and a 3.75 A continuous operating current. Consider the physical dimensions and lead spacing for PCB layout compatibility.
Part Context
This part belongs to the Bourns Multifuse MF-RX/72 series of polymeric positive temperature coefficient resettable fuses. The series is engineered for wide-ranging circuit protection applications, offering a cost-effective alternative to traditional fuses while providing reliable overcurrent protection in various electronic systems.
Replacement Considerations
The MF-RX375/72-0 serves as a bulk-packaged substitute within the same electrical specifications. Verify package type differences between AP and non-AP suffixes to ensure compatibility with manufacturing equipment.
