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MF-RHT750-0
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Product Detailed Parameters
- Description：PTC RESET FUSE 16V 7.5A RADIAL
- Series：Multifuse®, MF-RHT
- Mfr：Bourns Inc.
- Package：Bulk
- Type：Polymeric
- Voltage - Max：16V
- Current - Hold (Ih) (Max)：7.5 A
- Current - Trip (It)：13.1 A
- Current - Max：100 A
- Time to Trip：7 s
- Resistance - Initial (Ri) (Min)：9.4 mOhms
- Resistance - Post Trip (R1) (Max)：22 mOhms
- Operating Temperature：-40°C ~ 125°C
- Grade：Automotive
- Qualification：AEC-Q200
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.551" L x 0.118" W (14.00mm x 3.00mm)
- Height - Seated (Max)：0.925" (23.50mm)
- Thickness (Max)：-
- Lead Spacing：0.114" (2.90mm)
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Overview
The Bourns MF-RHT750-0 is a radial leaded polymeric positive temperature coefficient (PPTC) resettable fuse from the Multifuse MF-RHT series. It features a hold current of 7.5 A and a trip current of 13.1 A at maximum voltage of 16 VDC. The device has a maximum rated current of 100 A, an initial resistance of 22 mOhms, and operates within a temperature range of -40°C to +125°C. Packaged in bulk, it measures 14 mm in diameter and 22.2 mm in height with a 5.1 mm lead spacing.
Feature Summary
- Provides overcurrent protection through automatic resistance increase upon thermal activation
- Supports high-temperature operation suitable for demanding electronic environments
- Features radial leads for direct printed circuit board mounting
Applications
- Automotive electronics circuits requiring AEC-Q200 qualification
- High-current power supply input protection
- Industrial control system circuit safeguarding
Procurement Notes
Verify the specific suffix designation when ordering, as the MF-RHT series utilizes distinct suffixes to denote packaging variations such as bulk or reel configurations. Confirm that the required hold current and voltage ratings align precisely with the target circuit design parameters before finalizing procurement specifications to ensure compatibility.
Selection Notes
Select this component when a 7.5 A hold current and 16 VDC rating are required for radial PCB mounting. Ensure the application environment remains within the specified -40°C to +125°C operational limits. Consider the 22 mOhms initial resistance and 100 A maximum interrupting capacity when evaluating circuit performance under fault conditions.
Part Context
This part belongs to the Bourns Multifuse MF-RHT series of high-temperature PTC resettable fuses. These components are designed for robust circuit protection in automotive and industrial applications. The series offers various hold current options while maintaining consistent voltage ratings and radial leaded package formats for standardized integration.
Replacement Considerations
MF-RHT750-2 serves as a functional substitute within the same series, sharing identical electrical characteristics including 7.5 A hold current and 16 VDC rating. The primary distinction lies in the packaging format, with the -2 variant supplied on a reel rather than in bulk.
