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MF-RHT550-AP-14
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Product Detailed Parameters
- Description：PTC 5.5A 16V RADIAL LEADED HI-TE
- Series：Multifuse®, MF-RHT
- Mfr：Bourns Inc.
- Package：Tape & Box (TB)
- Type：Polymeric
- Voltage - Max：16V
- Current - Hold (Ih) (Max)：5.5 A
- Current - Trip (It)：10:00 AM
- Current - Max：100 A
- Time to Trip：6 s
- Resistance - Initial (Ri) (Min)：15 mOhms
- Resistance - Post Trip (R1) (Max)：37 mOhms
- Operating Temperature：-40°C ~ 125°C
- Grade：Automotive
- Qualification：AEC-Q200
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.441" L x 0.118" W (11.20mm x 3.00mm)
- Height - Seated (Max)：0.744" (18.90mm)
- Thickness (Max)：-
- Lead Spacing：0.201" (5.10mm)
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Overview
The MF-RHT550-AP-14 is a polymeric PTC resettable fuse manufactured by Bourns Inc. It features a hold current of 5.5 A and a trip current of 11 A, designed for operation at voltages up to 16 V. The component utilizes a radial leaded disc package suitable for through-hole mounting. It is engineered for high-temperature environments with a maximum operating temperature of 125°C.
Feature Summary
- Provides overcurrent protection via a self-resetting polymeric positive temperature coefficient mechanism
- Engineered for high-temperature stability in demanding electronic applications
- Utilizes a radial leaded disc form factor for reliable through-hole integration
Applications
- Automotive systems requiring reliable overcurrent protection
- High-temperature electronic circuit protection
- Consumer electronics safeguarding against short circuits
Procurement Notes
Verify the specific suffix AP-14 against official Bourns documentation to confirm the exact voltage and current ratings. Ensure the radial leaded disc package matches the target PCB layout requirements. Confirm compliance with RoHS3 standards as indicated in manufacturer records before finalizing procurement specifications.
Selection Notes
Select this component when a 5.5 A hold current and 16 V rating are required for high-temperature environments. The radial disc package facilitates automated or manual through-hole assembly. Consider the 125°C maximum operating temperature limit when designing for thermal management in enclosed or high-heat scenarios.
Part Context
This part belongs to the MF-RHT series of high-temperature PTC resettable fuses from Bourns Inc. The series is characterized by robust performance in elevated thermal conditions compared to standard polymeric fuses. The radial leaded configuration distinguishes it from surface-mount alternatives within the broader product family.
Replacement Considerations
The MF-RHT550-2-14 is listed as a parametric equivalent in distributor databases. Verify electrical parameters and package dimensions against the original datasheet before substitution to ensure compatibility with existing circuit designs and mechanical constraints.
