Multifuse® PTC Resettable Fuses

Bourns Multifuse® PTC Resettable Fuses are available in polymer or ceramic with surface-mount, through-hole, or strap-mount configurations. The materials used in these fuses allow them to reset after a fault condition has been removed, and the increase in resistance changes exponentially rather than in a linear manner. Resettable overcurrent protection offers reliability and a longer part life. Bourns Multifuse PTCs provide resettable overcurrent protection, extra-low resistance, and are RoHS compliant. These fuses are ideal circuit protection for a variety of industrial and consumer applications, including computer, battery, automotive, and telecommunications.

Results: 745
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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Mounting Style
Termination Style
Hold Current
Maximum Voltage
Trip Current
Current Rating - Max
Resistance
Package / Case
Minimum Operating Temperature
Maximum Operating Temperature
Lead Spacing
Qualification
Packaging
Bourns Resettable Fuses - PPTC 16V 4.5A-HD 100A MAX
Datasheet
1,943In Stock
Min.: 1
Mult.: 1

MF-LR Strap Mount Axial 4.5 A 16 VDC 8.9 A 100 A 20 mOhms - 40 C + 85 C Bulk
Bourns Resettable Fuses - PPTC 24V 1A-HD 100A MAX
Datasheet
2,352In Stock
Min.: 1
Mult.: 1

MF-LS Strap Mount Axial 1 A 24 VDC 2.5 A 100 A 130 mOhms - 40 C + 85 C Bulk
Bourns Resettable Fuses - PPTC 24V 3.4A-HD 100A MAX
Datasheet
2,740In Stock
Min.: 1
Mult.: 1

MF-LS Strap Mount Axial 3.4 A 24 VDC 6.8 A 100 A 27 mOhms - 40 C + 85 C Bulk
Bourns Resettable Fuses - PPTC 6V 5.5A-HD 20A PTC
Datasheet
2,218In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,500

MF-NSML SMD/SMT SMD/SMT 5.5 A 6 VDC 11 A 50 A 11 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 6V 1.1A-HD 50A SMD
Datasheet
961In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,500

MF-PSML PCB Mount SMD/SMT 1.1 A 6 VDC 2.2 A 50 A 210 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 0.90A 60V 0.14ohm Hold .90 Trip 1.8
Datasheet
1,870In Stock
Min.: 1
Mult.: 1
Reel: 2,000

MF-R/90 PCB Mount Radial 900 mA 60 VDC 1.8 A 40 A 310 mOhms - 40 C + 85 C 5.1 mm Ammo Pack
Bourns Resettable Fuses - PPTC 15V 1.75A-HD 100A MAX
Datasheet
2,400In Stock
Min.: 1
Mult.: 1

MF-S Strap Mount Axial 1.75 A 15 VDC 3.8 A 100 A 90 mOhms - 40 C + 85 C Bulk
Bourns Resettable Fuses - PPTC 250V 130MA-HD 3A MAX
Datasheet
2,101In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

MF-SD/250 PCB Mount SMD/SMT 130 mA 60 VDC 260 mA 3 A 7 Ohms - 45 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.5A 60V SMD 2920
Datasheet
4,854In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

MF-SM SMD/SMT SMD/SMT 500 mA 60 VDC 1 A 40 A 1.4 Ohms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 15V 1.5A-HD 40A MAX
Datasheet
5,451In Stock
60,000Expected 2026-08-31
MouseReel Available
Min.: 1
Mult.: 1
Reel: 6,000

MF-SMDF SMD/SMT SMD/SMT 1.5 A 15 VDC 3 A 40 A 170 mOhms 2018 (5045 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 12V 1.75A-HD 50A 1210
Datasheet
2,268In Stock
Min.: 1
Mult.: 1
Reel: 5,000

MF-USML PCB Mount SMD/SMT 1.75 A 12 VDC 3.5 A 50 A 50 mOhms - 40 C + 85 C Reel, Cut Tape
Bourns Resettable Fuses - PPTC 12V 3.5A-HD 50A 1210
Datasheet
76In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,500

MF-USML PCB Mount SMD/SMT 3.5 A 12 VDC 7 A 50 A 22 mOhms - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 12V 5.0A-HD 50A 1210
Datasheet
3,388In Stock
Min.: 1
Mult.: 1
Reel: 3,500

MF-USML PCB Mount SMD/SMT 5 A 12 VDC 10 A 50 A 12 mOhms - 40 C + 85 C Reel, Cut Tape
Bourns Resettable Fuses - PPTC 12V 5.5A-HD 50A 1210
Datasheet
3,467In Stock
Min.: 1
Mult.: 1
Reel: 3,500

MF-USML PCB Mount SMD/SMT 5.5 A 12 VDC 11 A 50 A 10 mOhms - 40 C + 85 C Reel, Cut Tape
Bourns Resettable Fuses - PPTC 16V 1.7A-HD 100A MAX
Datasheet
1,917In Stock
Min.: 1
Mult.: 1

MF-VS Strap Mount Axial 1.7 A 6 VDC 3.4 A 100 A 52 mOhms - 40 C + 85 C Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.9A 60V RADIAL LEADED
Datasheet
2,094In Stock
Min.: 1
Mult.: 1

MF-R/90 PCB Mount Radial 900 mA 60 VDC 1.8 A 40 A 310 mOhms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 1.85A 30V RADIAL LEADED
Datasheet
82In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-R PCB Mount Radial 1.85 A 30 VDC 3.7 A 40 A 70 mOhms - 40 C + 85 C 5.1 mm Ammo Pack
Bourns Resettable Fuses - PPTC PTC RESETTABLE 2.5A 30V RADIAL LEADED
Datasheet
2,558In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-R PCB Mount Radial 2.5 A 30 VDC 5 A 40 A 48 mOhms - 40 C + 85 C 5.1 mm Ammo Pack
Bourns Resettable Fuses - PPTC PTC RESETTABLE 8.0A 30V RADIAL LEADED
Datasheet
16In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-R PCB Mount Radial 8 A 30 VDC 16 A 40 A 20 mOhms - 40 C + 85 C 10.2 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC 5.0A 16V RADIAL LEADED HI-TEMP
Datasheet
1,094In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-RHT PCB Mount Radial 5 A 16 VDC 9 A 100 A 45 mOhms - 40 C + 125 C 5.1 mm AEC-Q200 Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 1.75A 6V SMD 1210
Datasheet
4,734In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

MF-USMF SMD/SMT SMD/SMT 1.75 A 6 VDC 3.5 A 40 A 80 mOhms 1210 (3225 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 15V 3.8A-HD 100A MAX
Datasheet
72In Stock
Min.: 1
Mult.: 1

MF-LR Strap Mount Axial 3.8 A 15 VDC 8.3 A 100 A 26 mOhms - 40 C + 85 C Bulk
Bourns Resettable Fuses - PPTC 6V 1.1A-HD 40A MAX
Datasheet
2In Stock
21,000On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

MF-PSMF SMD/SMT SMD/SMT 1.1 A 6 VDC 2.2 A 40 A 210 mOhms 0805 (2012 metric) - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 30V 500MA-HD 40A MAX
Datasheet
19,407Expected 2026-04-14
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

MF-MSMF SMD/SMT SMD/SMT 500 mA 30 VDC 1 A 40 A 1.3 Ohms 1812 (4532 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC PTC 7.5A 16V RADIAL LEADED HI-TEMP
Datasheet
8,800Expected 2026-02-24
Min.: 1
Mult.: 1

MF-RHT PCB Mount Radial 7.5 A 16 VDC 13.1 A 100 A 22 mOhms - 40 C + 125 C 5.1 mm AEC-Q100 Bulk