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MF-RG400-0
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Product Detailed Parameters
- Description：PTC RESET FUSE 16V 3A RADIAL
- Series：Multifuse®, MF-RG
- Mfr：Bourns Inc.
- Package：Bulk
- Type：Polymeric
- Voltage - Max：16V
- Current - Hold (Ih) (Max)：4:00 AM
- Current - Trip (It)：6.8 A
- Current - Max：100 A
- Time to Trip：1.7 s
- Resistance - Initial (Ri) (Min)：21 mOhms
- Resistance - Post Trip (R1) (Max)：60 mOhms
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：AEC-Q200
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.390" L x 0.118" W (9.90mm x 3.00mm)
- Height - Seated (Max)：0.504" (12.80mm)
- Thickness (Max)：-
- Lead Spacing：0.201" (5.10mm)
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Overview
The Bourns MF-RG400-0 is a radial leaded PTC resettable fuse from the MF-RG series, designed for automotive-grade circuit protection. It features a 16VDC voltage rating and a 4A holding current. The device exhibits an initial resistance of 21 mOhms minimum and a post-trip resistance of 60 mOhms maximum. It operates within a temperature range of -40°C to 85°C and holds AEC-Q200 qualification.
Feature Summary
- Provides overcurrent protection through automatic tripping and resetting capabilities
- Complies with AEC-Q200 qualification standards for automotive applications
- Utilizes a compact radial leaded package suitable for PCB mounting
Applications
- Automotive electronics circuits
- Power supply line protection
- Signal line surge suppression
Procurement Notes
Verify component authenticity by cross-referencing the manufacturer part number with official Bourns documentation. Confirm that the specific suffix matches the required electrical characteristics. Ensure the supplier provides valid traceability records. Check for any regional distribution restrictions or availability limitations before finalizing procurement plans.
Selection Notes
Select this component when automotive-grade reliability is required for low-voltage DC circuits. The 4A holding current suits moderate load protection needs. The radial leaded format facilitates through-hole assembly. Consider the 16V rating limit and operating temperature range to ensure compatibility with the target environment and system voltage levels.
Part Context
This part belongs to the Bourns MF-RG series of PTC resettable fuses. The series is characterized by its compliance with AEC-Q200 standards, making it suitable for demanding automotive environments. The radial leaded design offers a compact footprint for space-constrained printed circuit board layouts.
Replacement Considerations
Consult official Bourns substitution guides for verified alternatives. Cross-reference key parameters such as holding current, voltage rating, and package type. Ensure any substitute maintains AEC-Q200 qualification if automotive use is intended.
