MF-RHT750-AP

Overview

The Bourns MF-RHT750-AP is a radial leaded polymer positive temperature coefficient (PPTC) resettable fuse designed for high-temperature circuit protection. It features a hold current of 7.5 A and a trip current of 13.1 A, operating within a maximum voltage of 16 VDC. The device has a maximum rated current of 100 A and an initial resistance of 22 mOhms. It supports a wide operating temperature range from -40°C to +125°C with a lead spacing of 5.1 mm. Certified under AEC-Q100 standards, it is supplied in ammo pack packaging.

Feature Summary

• Provides overcurrent protection through automatic resistance increase during fault conditions
• Eliminates nuisance tripping caused by ambient temperature variations
• Offers robust performance in demanding environments with high voltage and heat

Applications

• Automotive circuitry protection
• Overcurrent surge protection for high-reliability electronic equipment
• Industrial transportation systems
• Communication equipment
• Consumer electronic devices

Procurement Notes

Verify the specific suffix against official documentation to confirm packaging type and compliance status. Ensure the selected variant matches the required thermal and electrical ratings for the target application environment. Cross-reference the manufacturer's latest datasheet to confirm availability and any recent product change notifications before finalizing procurement plans.

Selection Notes

Select this component when applications require high-current protection up to 7.5 A in space-constrained layouts using radial leads. Consider the 125°C operating capability for high-heat environments where standard components may fail. Evaluate the low initial resistance for minimal power loss during normal operation. Confirm AEC-Q100 certification is necessary for automotive or industrial reliability requirements.

Part Context

This part belongs to the Multifuse MF-RHT series, which utilizes advanced polymer PTC technology for resettable fusing. The series is engineered to replace traditional fusible links, offering reusable protection that reduces maintenance costs. The radial leaded format facilitates easy integration into printed circuit boards, providing flexibility for designers working with limited board space compared to surface mount alternatives.

Replacement Considerations

Consult official substitution guides for compatible variants within the MF-RHT family. Verify that alternative parts match the 7.5 A hold current and 16 VDC rating. Ensure the replacement maintains the same radial lead configuration and AEC-Q100 qualification if required for the specific application.