MF-RHT450-AP-14

Overview

The MF-RHT450-AP-14 is a polymeric PTC resettable fuse from the Bourns Multifuse series, designed for overcurrent surge protection in electronic equipment. It features a hold current of 4.5 A and a maximum voltage rating of 16 V. The component utilizes a radial through-hole package with a disc form factor. It is qualified to AEC-Q200 Rev-D standards for automotive applications and supports an operating temperature range up to 125°C. The device provides low thermal derating capabilities.

Feature Summary

• AEC-Q200 Rev-D stress test qualified for passive components in automotive applications
• Supports high operating temperatures up to 125°C
• Provides overcurrent surge protection with low thermal derating

Applications

• Automotive electronics
• High-temperature electronic equipment
• Overcurrent surge protection circuits

Procurement Notes

Verify that the specific suffix -14 corresponds to the required lead frame or packaging configuration as defined by the manufacturer. Confirm AEC-Q200 compliance requirements match the target automotive application standards. Ensure the 16V rating and 4.5A hold current align with the circuit design parameters before procurement.

Selection Notes

Select this component when high-temperature stability and automotive qualification are required. The 4.5A hold current suits moderate current loads where rapid response to surges is necessary. Consider the radial disc package for through-hole mounting constraints. Verify halogen-free status if environmental regulations apply to the assembly process.

Part Context

This part belongs to the MF-RHT series of high-temperature PTC resettable fuses. The series offers various hold currents ranging from 0.5A to 1.3A across different package options. The AP suffix typically denotes specific lead or packaging variations within the Multifuse product line, distinguishing it from standard radial or surface-mount variants.

Replacement Considerations

Direct substitutes include other MF-RHT450 variants such as MF-RHT450-0-14, provided the electrical ratings and package dimensions are compatible. Cross-reference the specific lead configuration and halogen-free certification to ensure mechanical and regulatory equivalence in the final assembly.