MF-RHT100-2

Overview

The Bourns MF-RHT100-2 is a high-temperature polymeric positive temperature coefficient (PPTC) resettable fuse from the Multifuse MF-RHT series. Designed for radial leaded PCB mounting, this component provides overcurrent protection with a holding current of 1.0 A and a maximum voltage rating of 30 VDC. It features a low initial resistance of 180 mOhms and can withstand trip currents up to 3.8 A. The device supports a maximum fault current of 100 A and operates within a temperature range of -40°C to +125°C. It is qualified under the AEC-Q200 automotive standard.

Feature Summary

• High-temperature PTC polymer construction for reliable circuit protection
• Radial leaded design optimized for printed circuit board mounting
• Automotive-grade qualification ensuring compliance with AEC-Q200 standards

Applications

• Automotive electronic module protection
• Consumer electronics power supply circuits
• Industrial control system overcurrent safeguarding

Procurement Notes

Verify that the specific part number suffix matches the required voltage and current ratings, as variations exist within the MF-RHT series. Confirm that the AEC-Q200 qualification status aligns with your application's regulatory requirements. Ensure the radial lead pitch and physical dimensions are compatible with the target PCB footprint before finalizing procurement orders.

Selection Notes

Select this component when a 1.0 A holding current and 30 VDC rating are required for high-temperature environments. The MF-RHT series offers superior thermal stability compared to standard PPTCs. Consider the 180 mOhms resistance impact on circuit efficiency. Verify that the 100 A maximum fault current capability exceeds the prospective short-circuit current of the protected line.

Part Context

This device belongs to the Bourns Multifuse MF-RHT family of high-temperature resettable fuses. These components utilize proprietary polymer technology to provide automatic reset functionality after fault conditions clear. The series is engineered for applications requiring robust performance in elevated temperature ranges, distinguishing it from standard commercial-grade PPTC devices.

Replacement Considerations

Cross-reference with other MF-RHT series variants such as MF-RHT100-0 or MF-RHT100-AP if different packaging or slight parameter adjustments are needed. Ensure any substitute maintains the same AEC-Q200 qualification and radial lead configuration to preserve mechanical and electrical compatibility.