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MF-R400-0-14
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Product Detailed Parameters
- Description：PTC RESETTABLE 4.0A 30V RADIAL L
- Series：Multifuse®, MF-R
- Mfr：Bourns Inc.
- Package：Bulk
- Type：Polymeric
- Voltage - Max：30V
- Current - Hold (Ih) (Max)：4:00 AM
- Current - Trip (It)：8:00 AM
- Current - Max：40 A
- Time to Trip：12.7 s
- Resistance - Initial (Ri) (Min)：10 mOhms
- Resistance - Post Trip (R1) (Max)：50 mOhms
- Resistance - 25°C (Typ)：-
- Operating Temperature：-40°C ~ 85°C
- Grade：Automotive
- Qualification：AEC-Q200
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.567" L x 0.118" W (14.40mm x 3.00mm)
- Height - Seated (Max)：0.976" (24.80mm)
- Thickness (Max)：-
- Lead Spacing：0.201" (5.10mm)
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Overview
The Bourns MF-R400-0-14 is a polymeric positive temperature coefficient (PPTC) resettable fuse designed for overcurrent and overtemperature protection. It features a hold current of 4A, trip current of 8A, and maximum voltage rating of 30V. The device withstands a maximum fault current of 40A with a power dissipation of 2.5W. Physical dimensions are 14.4mm x 3mm x 24.8mm in a radial through-hole package.
Feature Summary
- Polymeric PTC technology provides automatic reset capability after fault clearance
- Radial leaded disc construction facilitates through-hole mounting
- Designed for combined overcurrent and overtemperature circuit protection
Applications
- Overcurrent protection in electronic circuits
- Overtemperature protection for sensitive components
- General circuit protection in consumer electronics
Procurement Notes
Verify the specific suffix -0-14 against official Bourns documentation to confirm dimensional and electrical tolerances. Ensure the radial lead configuration matches the target PCB layout. Confirm that the 30V rating and 4A hold current align with the system's operational requirements before finalizing procurement.
Selection Notes
Select this component when a resettable fuse with a 4A hold current and 30V maximum voltage is required. The radial disc form factor suits applications where through-hole mounting is preferred. Verify that the 40A maximum fault current capacity meets the prospective short-circuit levels of the protected circuit.
Part Context
This part belongs to the Bourns MF-R400 series of polymeric resettable fuses. These devices utilize PTC materials to provide reliable protection against excessive current and heat. The series is engineered for use in various electronic assemblies requiring robust, self-resetting circuit protection.
Replacement Considerations
Consult official Bourns substitution guides for compatible alternatives. Verify that any substitute maintains identical hold current, trip current, voltage rating, and physical footprint specifications.
