ChipApex | Global Electronic Components Supplier
MF-RX375-0-99
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：PTC RESET FUSE 60V 3.75A RADIAL
- Series：Multifuse®, MF-RX
- Mfr：Bourns Inc.
- Package：Bulk
- Type：Polymeric
- Voltage - Max：60V
- 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：1.118" L x 0.122" W (28.40mm x 3.10mm)
- Height - Seated (Max)：1.319" (33.50mm)
- Thickness (Max)：-
- Lead Spacing：0.402" (10.20mm)
Download product information
Overview
The Bourns MF-RX375-0-99 is a radial leaded PTC resettable fuse from the 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 device has a maximum resistance of 50 mΩ and a maximum interrupt rating of 40 A. It operates within a temperature range of -40°C to +85°C, with a typical trip time of 24 seconds at the trip current. The component measures 23.51 mm in length, 10.2 mm in lead spacing, and 3.1 mm in height.
Feature Summary
- Provides automatic circuit protection through polymer positive temperature coefficient technology
- Offers reliable overcurrent interruption without requiring replacement after tripping
- Designed for PCB mounting with radial leads for straightforward integration
Applications
- Overcurrent protection for portable electronic devices
- Protection circuits in telecommunications equipment
- Battery pack safeguarding in consumer electronics
Procurement Notes
Verify the specific suffix against official Bourns documentation to confirm exact electrical characteristics and physical dimensions. Ensure the selected variant matches the required hold current and voltage ratings for the target application. Cross-reference the datasheet for precise thermal derating curves and mechanical tolerances before finalizing procurement specifications.
Selection Notes
Select this component based on its 3.75 A hold current and 72 VDC rating for appropriate circuit protection levels. Consider the 50 mΩ maximum resistance to minimize impact on normal circuit operation. Evaluate the 24-second trip time requirement against the specific fault response needs of the design. Confirm that the radial leaded package fits the available PCB layout constraints.
Part Context
This part belongs to the Bourns Multifuse MF-RX/72 series of resettable fuses. These components are designed for applications requiring repeated overcurrent protection. The series offers various hold currents and voltage ratings to suit different circuit requirements while maintaining a consistent form factor and installation method.
Replacement Considerations
Consult official Bourns substitution guides for verified alternatives. Ensure any substitute maintains equivalent hold current, trip current, and voltage ratings. Verify compatibility with existing PCB footprints and thermal management requirements.
