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MF-R400-0-15
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Product Detailed Parameters
- Description：PTC RESET FUSE 30V 4A RADIAL
- 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：-
- Qualification：-
- 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 MF-R400-0-15 is a radial leaded polymeric positive temperature coefficient (PPTC) resettable fuse manufactured by Bourns Inc. Designed for through-hole printed circuit board applications, this component provides overcurrent and overtemperature protection. It features a maximum hold current of 4 A at ambient temperatures ranging from -40°C to 85°C. The device operates with a voltage rating of 30 V and utilizes a high-speed response mechanism to safeguard electronic circuits against excessive current conditions.
Feature Summary
- Polymeric positive temperature coefficient construction for reliable resettable protection
- Radial leaded package optimized for through-hole PCB mounting
- High-speed response capability for effective circuit safeguarding
Applications
- Overcurrent protection in embedded systems
- Overtemperature protection for moderate power applications
- Circuit safeguarding in consumer electronics
Procurement Notes
Verify the specific suffix designation when ordering, as variants such as MF-R400-0-15-99 may exist within the product family. Confirm that the required hold current and voltage ratings align with the system design specifications before procurement. Ensure compatibility with through-hole assembly processes and validate thermal performance requirements against the specified operating temperature range.
Selection Notes
Select this component for applications requiring robust overcurrent and overtemperature protection in moderate power environments. The 4 A hold current rating makes it suitable for circuits where higher current tolerance is necessary compared to lower-rated alternatives. Consider the radial leaded form factor for ease of manual or automated through-hole insertion during manufacturing.
Part Context
This part belongs to the MF-R400 series of PTC resettable fuses from Bourns Inc., which are engineered for general-purpose circuit protection. The series offers various hold current options to accommodate different load requirements while maintaining consistent performance characteristics across the product line for reliable system integration.
Replacement Considerations
Cross-reference with other radial PPTC fuses offering similar 4 A hold current and 30 V ratings. Verify that substitute components meet the same thermal and electrical safety standards required for the specific application environment.
