MF-RHT650-AP

Overview

The Bourns MF-RHT650-AP is a radial leaded PPTC resettable fuse from the Multifuse MF-RHT series, designed for high-temperature circuit protection. It features a 16 V maximum voltage rating and a 6.5 A hold current. The device trips at 12 A with a maximum trip time of 5.5 seconds under specified conditions. It supports a maximum fault current of 100 A and has a typical resistance of 26 mΩ. Operating within a temperature range of -40°C to +125°C, it meets AEC-Q100 automotive qualification standards.

Feature Summary

• Provides overcurrent protection in high-temperature environments using polymer positive temperature coefficient technology.
• Automotive-grade reliability certified under AEC-Q100 standards for harsh operational conditions.
• Radial leaded package design facilitates through-hole PCB mounting for robust mechanical connection.

Applications

• Automotive electronic circuit protection
• High-temperature industrial equipment safeguarding
• Overcurrent protection for power supply lines

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number MF-RHT650-AP with official Bourns documentation. Confirm that the specific suffix AP corresponds to the required packaging configuration, as variations exist within the MF-RHT series. Ensure compliance with AEC-Q100 requirements if the application demands automotive-grade certification. Check datasheet specifications for hold and trip currents to validate suitability for the target circuit parameters before finalizing procurement.

Selection Notes

Select this component when applications require a resettable fuse capable of withstanding elevated temperatures up to 125°C. The 6.5 A hold current and 16 V rating define the operational limits for low-voltage DC circuits. Consider the radial leaded form factor for manual or wave soldering processes where surface-mount alternatives are unsuitable. The AEC-Q100 qualification makes it appropriate for automotive systems requiring rigorous environmental stability and long-term reliability under thermal stress.

Part Context

The MF-RHT650-AP belongs to the Multifuse MF-RHT series, which specializes in high-temperature PPTC resettable fuses. This series is engineered to provide cost-effective protection against short circuits and overcurrent events in demanding environments. Unlike standard PTC devices, the MF-RHT series utilizes specialized polymers to maintain performance stability across wide temperature ranges, ensuring consistent protection characteristics for critical electronic assemblies.

Replacement Considerations

The MF-RHT650-2 is an alternative variant within the same MF-RHT series offering identical electrical ratings but supplied in reel packaging instead of ammo pack. Both share the 6.5 A hold current and 16 V rating. Verify that the change in packaging format aligns with automated assembly requirements without affecting the functional performance or thermal characteristics of the circuit protection.