MF-RHT050-0

Overview

The Bourns MF-RHT050-0 is a polymeric positive temperature coefficient (PPTC) resettable fuse designed for high-temperature applications. It features a radial leaded package suitable for PCB mounting and holds AEC-Q200 automotive qualification. The component operates within a voltage range up to 30V DC, with a hold current of 0.5A and a trip current of 920mA. It exhibits a maximum resistance of 180 milliohms and withstands operating temperatures from -40°C to +125°C.

Feature Summary

• Provides resettable overcurrent protection through automatic resistance increase upon fault conditions
• Automotive-grade reliability certified under the AEC-Q200 standard for harsh environment durability
• Supports continuous operation at elevated temperatures up to 125°C for thermal stability

Applications

• Automotive electronic circuit protection systems
• General electronic equipment safeguarding
• Overcurrent protection in power supply lines

Procurement Notes

Verify that the specific part number matches the required electrical ratings, particularly the 30V maximum voltage and 0.5A hold current specifications. Confirm the AEC-Q200 qualification status is explicitly stated in the official datasheet documentation to ensure compliance with automotive grade requirements before finalizing procurement decisions.

Selection Notes

Select this component when designing circuits requiring resettable protection with a 30V maximum rating and 0.5A nominal current. Ensure the application environment supports the specified -40°C to +125°C operating temperature range. Verify that the radial leaded package configuration aligns with the printed circuit board layout and mounting constraints of the target design.

Part Context

This device belongs to the Bourns MF-RHT series of high-temperature PTC resettable fuses. The series is engineered to provide reliable fault protection for sensitive electronics while maintaining performance under demanding thermal conditions. The radial leaded form factor facilitates through-hole integration into various electronic assemblies.

Replacement Considerations

Consult official Bourns documentation for verified substitute part numbers within the MF-RHT series or equivalent automotive-grade PTC fuses. Cross-reference critical parameters such as hold current, trip current, and maximum voltage to ensure functional compatibility without compromising circuit safety standards.