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MF-RG300-2-14
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Product Detailed Parameters
- Description：PTC RESETTABLE 3.0A 16V RADIAL L
- Series：Multifuse®, MF-RG
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR)
- Type：Polymeric
- Voltage - Max：16V
- Current - Hold (Ih) (Max)：3:00 AM
- Current - Trip (It)：5.1 A
- Current - Max：100 A
- Time to Trip：1 s
- Resistance - Initial (Ri) (Min)：38 mOhms
- Resistance - Post Trip (R1) (Max)：97.5 mOhms
- Operating Temperature：-40°C ~ 85°C
- Grade：Automotive
- Qualification：AEC-Q200
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.280" L x 0.118" W (7.10mm x 3.00mm)
- Height - Seated (Max)：0.433" (11.00mm)
- Thickness (Max)：-
- Lead Spacing：0.201" (5.10mm)
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Overview
The Bourns MF-RG300-2-14 is a polymeric PTC resettable fuse from the Multifuse MF-RG series, designed for overcurrent protection in electronic circuits. It features a holding current of 3A and a trip current of 5.1A, with a maximum voltage rating of 16VDC. The component has a maximum fault current rating of 100A and a typical resistance of 65mΩ at 25°C. It operates within a temperature range of -40°C to +85°C and utilizes a radial leaded package with a 5.1mm lead spacing.
Feature Summary
- Provides automatic circuit recovery after fault clearance without manual replacement
- Offers robust overcurrent protection against short circuits and thermal runaway
- Utilizes polymeric technology for reliable performance in low-voltage applications
Applications
- Consumer electronics power supply input protection
- Portable device battery circuit safeguarding
- Low-voltage industrial control system wiring protection
Procurement Notes
Verify the specific suffix '-14' corresponds to the required tape-and-reel packaging configuration rather than cut-tape or bulk formats. Confirm that the 16VDC voltage rating aligns with the target circuit's operating parameters. Ensure the radial lead pitch matches the printed circuit board layout requirements before finalizing procurement orders.
Selection Notes
Select this component when a low-profile, radial-leaded resettable fuse is required for circuits operating up to 16VDC. The 3A holding current suits moderate load applications, while the 100A max fault rating provides safety margin against high-energy shorts. Consider the 65mΩ resistance impact on power loss during normal operation relative to alternative fuse technologies.
Part Context
This part belongs to the Bourns Multifuse MF-RG series, which focuses on general-purpose resettable fuses for consumer and industrial electronics. The series emphasizes compact radial packages suitable for through-hole mounting. The MF-RG line complements Bourns' broader portfolio of thermal protection devices by offering reusable alternatives to one-time fusible links.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing footprints if considering alternative manufacturers, as lead spacing and body dimensions may vary between different PTC fuse families.
