MF-RHT750-2-14

Overview

The Bourns MF-RHT750-2-14 is a radial leaded polymer positive temperature coefficient (PPTC) resettable fuse designed for high-temperature circuit protection. It features a holding current of 7.5 A and a trip current of 13.1 A at a maximum voltage of 16 VDC. The device has a maximum rated current of 100 A and an initial resistance of 22 mOhms. It operates within a temperature range of -40°C to +125°C with a lead spacing of 5.1 mm.

Feature Summary

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

Applications

• Automobile circuitry protection
• Overcurrent surge protection for high reliability electronic equipment
• Industrial transportation systems
• Communication equipment
• Security and consumer electronic devices

Procurement Notes

Verify the specific suffix '-14' against official Bourns documentation to confirm reel packaging and lead configuration. Ensure the component meets AEC-Q200 automotive qualification requirements if intended for automotive applications. Cross-reference datasheet parameters such as hold current and voltage rating with system design specifications before procurement.

Selection Notes

Select this component when radial leaded mounting is required for space-constrained layouts compared to surface mount alternatives. Consider the 125°C operating temperature limit for high-heat environments. Evaluate the 22 mOhms initial resistance for power loss calculations. Confirm compatibility with 16 VDC circuits and ensure the 7.5 A holding current aligns with normal operational loads.

Part Context

This part belongs to the Multifuse MF-RHT series, which utilizes polymer PTC technology for resettable fuses. The series is engineered for high-temperature stability and cost-effective circuit safeguarding. It serves as a reliable alternative to traditional fusible links, offering reusable protection against short circuits and overcurrent events in various industrial and consumer applications.

Replacement Considerations

MF-RHT750-2 is a related variant within the same series. Verify electrical parameters and physical dimensions before substitution. Ensure any replacement maintains the required AEC-Q200 qualification and radial leaded package style for direct board compatibility.