MF-RHT900-2

Overview

The Bourns MF-RHT900-2 is a radial leaded polymeric positive temperature coefficient (PPTC) resettable fuse designed for high-temperature applications. It features a hold current of 9 A and a maximum voltage rating of 16 V. The device exhibits a low initial resistance of 7.4 mOhms, ensuring minimal power loss during normal operation. It operates within a temperature range of -40°C to +125°C and holds AEC-Q200 qualification for automotive reliability standards. Packaged in reels for automated assembly, this component provides overcurrent protection by increasing resistance significantly upon fault conditions.

Feature Summary

• Self-resetting overcurrent protection mechanism utilizing PTC technology
• AEC-Q200 qualified for automotive electronic circuit reliability
• Radial leaded package configuration suitable for PCB mounting
• High-temperature capability with stable performance up to 125°C

Applications

• Automotive electronics circuits requiring AEC-Q200 compliance
• High-temperature industrial control systems
• Consumer electronics power input protection
• Battery pack overcurrent safeguarding

Procurement Notes

Verify the specific ordering suffix and reel quantity requirements against the manufacturer's official documentation before purchase. Confirm that the AEC-Q200 qualification status meets the target application's reliability standards. Ensure the radial leaded package dimensions are compatible with the intended PCB footprint and assembly process. Cross-reference the maximum operating voltage and hold current parameters with the system design specifications to guarantee adequate protection margins.

Selection Notes

Select this component when an overcurrent protection device with a 9 A hold current and 16 V maximum voltage rating is required. Consider the MF-RHT900-2 for applications necessitating AEC-Q200 qualification and operation at temperatures up to 125°C. Evaluate the low 7.4 mOhms resistance for efficiency-sensitive designs. Choose the radial leaded variant if through-hole mounting or specific lead spacing is mandated by the mechanical layout constraints.

Part Context

The MF-RHT900-2 belongs to the Bourns Multifuse MF-RHT series of resettable fuses. This series is engineered for robust overcurrent protection in demanding environments. The RHT designation indicates high-temperature performance characteristics. As part of the broader PPTC family, it shares common self-resetting functionality but is distinguished by its specific electrical ratings and automotive-grade qualification.

Replacement Considerations

Consult official Bourns substitution guides for verified alternative part numbers within the MF-RHT series. Ensure any substitute maintains the 9 A hold current, 16 V rating, and AEC-Q200 qualification. Verify physical package compatibility and thermal characteristics before implementation.