MF-RHT070-2

Overview

The Bourns MF-RHT070-2 is a radial leaded polymeric positive temperature coefficient (PPTC) resettable fuse designed for high-temperature applications. It features a holding current of 0.7 A and a trip current of 1.4 A, with a maximum voltage rating of 30 VDC. The device has a maximum resistance of 800 mOhms and can withstand a maximum fault current of 40 A. It operates within a temperature range of -40°C to +125°C and utilizes a 5.1 mm lead spacing.

Feature Summary

• Provides automatic circuit protection against overcurrent conditions by increasing resistance when tripped.
• Designed for high-temperature environments with an operational limit up to +125°C.
• Features radial leads for through-hole PCB mounting with standard 5.1 mm spacing.

Applications

• Overcurrent protection in automotive electronics
• Protection of portable communication devices
• Safeguarding battery packs and power supplies

Procurement Notes

Verify the specific suffix '2' corresponds to the 30V rating and reel packaging configuration as indicated in distributor listings. Confirm that the component meets RoHS requirements for your target market. Ensure the procurement channel supports the required reel quantity multiples if applicable. Cross-reference the datasheet to confirm the exact trip time characteristics under your specific load conditions before finalizing orders.

Selection Notes

Select this component when a 0.7 A holding current and 30 VDC rating are required for high-temperature circuits. The radial leaded format is suitable for through-hole assembly processes. Consider the 800 mOhms maximum resistance impact on low-voltage drop requirements. Evaluate the 40 A maximum fault current capability against potential short-circuit scenarios in the target application design.

Part Context

This part belongs to the Bourns Multifuse MF-RHT series, which specializes in high-temperature PPTC resettable fuses. The series offers various current and voltage ratings tailored for demanding environments. The MF-RHT line is commonly used in automotive and industrial applications where reliability under thermal stress is critical. It serves as a reusable alternative to traditional one-time fuses.

FAQ

What is the difference between the MF-RHT070-0 and MF-RHT070-2?

The primary difference is the voltage rating; the MF-RHT070-2 is rated for 30V, while the MF-RHT070-0 is typically rated for 16V. Both share the same 0.7A holding current.

Is the MF-RHT070-2 AEC-Q200 qualified?

Documentation for the MF-RHT070-2 does not explicitly list AEC-Q200 qualification, unlike some higher-current variants in the series such as the MF-RHT900-2.