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MF-RHT300-0-14
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Product Detailed Parameters
- Description：PTC 3.0A 16V RADIAL LEADED HI-TE
- Series：Multifuse®, MF-RHT
- Mfr：Bourns Inc.
- Package：Bulk
- Type：Polymeric
- Voltage - Max：16V
- Current - Hold (Ih) (Max)：3:00 AM
- Current - Trip (It)：6:00 AM
- Current - Max：100 A
- Time to Trip：5 s
- Resistance - Initial (Ri) (Min)：33 mOhms
- Resistance - Post Trip (R1) (Max)：79 mOhms
- Operating Temperature：-40°C ~ 125°C
- Grade：Automotive
- Qualification：AEC-Q200
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.346" L x 0.118" W (8.80mm x 3.00mm)
- Height - Seated (Max)：0.543" (13.80mm)
- Thickness (Max)：-
- Lead Spacing：0.201" (5.10mm)
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Overview
The Bourns MF-RHT300-0-14 is a high-temperature polymeric positive temperature coefficient (PPTC) resettable fuse designed for through-hole mounting. It features a radial lead configuration with a maximum holding current of 3 A and a trip current of 6 A. The device supports a maximum voltage of 16 VDC and offers a maximum fault current rating of 40 A. Its resistance is specified at 50 mΩ, operating within a temperature range of -40°C to +85°C. The component measures 3 mm in height with a 5.1 mm lead spacing.
Feature Summary
- Provides overcurrent protection through automatic circuit interruption upon thermal activation
- Designed for high-temperature environments suitable for automotive applications
- Complies with AEC-Q200 qualification standards for automotive grade reliability
Applications
- Automotive electronic circuits requiring AEC-Q200 compliance
- High-temperature power supply input protection
- Peripheral interface overcurrent safeguarding
Procurement Notes
Verify the specific suffix '0-14' against official Bourns documentation to confirm the 16V rating and high-temperature classification. Ensure the ordering part number matches the required axial or radial package dimensions and lead spacing specifications for PCB layout compatibility.
Selection Notes
Select this component when circuit protection requires operation above standard industrial temperatures. Confirm that the 16V maximum voltage rating aligns with the system's operational limits. Evaluate the 3A holding current against normal load requirements to prevent nuisance tripping during steady-state operation.
Part Context
This part belongs to the MF-RHT series of high-temperature PTC resettable fuses manufactured by Bourns Inc. The series is engineered for demanding environments where standard polymeric devices may fail. It serves as a reusable alternative to traditional one-time fuses in critical automotive and industrial systems.
Replacement Considerations
Direct substitutes include other MF-RHT series variants with matching electrical ratings. Verify cross-reference data from authorized distributors to ensure equivalent thermal and electrical performance characteristics before implementation.
