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.

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Description Datasheet Availability Pricing (GBP) 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
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Packaging
Bourns Resettable Fuses - PPTC Ceramic PTC
Datasheet
5,848In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 350

CMF-SDP PCB Mount SMD/SMT 80 mA 230 VAC 200 mA 3 A 7 Ohms - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 30V 3.5A-HD 100A MAX
Datasheet
10,615In Stock
Min.: 1
Mult.: 1

MF-S Strap Mount Axial 3.5 A 30 VDC 6.3 A 100 A 31 mOhms - 40 C + 85 C Bulk
Bourns Resettable Fuses - PPTC RESETTABLE FUSE 220VOLT 25OHM
Datasheet
14,497In Stock
Min.: 1
Mult.: 1

CMF-RL PCB Mount Radial 50 mA 230 VAC 100 mA 3 A 55 Ohms - 40 C + 125 C 5 mm Tray
Bourns Resettable Fuses - PPTC RESETTABLE FUSE 230VOLT 10OHM
Datasheet
9,800In Stock
Min.: 1
Mult.: 1

CMF-RL PCB Mount Radial 150 mA 60 VDC 300 mA 3 A 10 Ohms - 40 C + 125 C 5 mm Tray
Bourns Resettable Fuses - PPTC RESETTABLE FUSE 230VOLT 55OHM
Datasheet
9,564In Stock
Min.: 1
Mult.: 1

CMF-RL PCB Mount Radial 60 mA 230 VAC 150 mA 3 A 55 Ohms - 40 C + 125 C 5 mm Tray
Bourns Resettable Fuses - PPTC Ceramic PTC
Datasheet
5,153In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 350

CMF-SDP PCB Mount SMD/SMT 180 mA 230 VAC 360 mA 1 A 10 Ohms - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 60V 300MA-HD 10A MAX
Datasheet
53,968In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6,000

MF-SMDF SMD/SMT SMD/SMT 300 mA 60 VDC 800 mA 20 A 2.15 Ohms 2018 (5045 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 15V 1.5A-HD 40A MAX
Datasheet
61,295In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 RESETTABLE FUSE 230VOLT 35OHM
Datasheet
9,643In Stock
Min.: 1
Mult.: 1

CMF-RL PCB Mount Radial 80 mA 230 VAC 220 mA 3 A 35 Ohms - 40 C + 125 C 5 mm Tray
Bourns Resettable Fuses - PPTC 12V 5.0A-HD 50A 1210
Datasheet
12,601In Stock
Min.: 1
Mult.: 1
: 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 RESETTABLE FUSE 230VOLT 50OHM
Datasheet
9,510In Stock
Min.: 1
Mult.: 1

CMF-RL PCB Mount Radial 50 mA 230 V 100 mA 3 A 50 Ohms - 40 C + 125 C 5 mm Tray
Bourns Resettable Fuses - PPTC 30V 4.2A-HD 100A MAX
Datasheet
10,985In Stock
Min.: 1
Mult.: 1

MF-S Strap Mount Axial 4.2 A 30 VDC 7.6 A 100 A 24 mOhms - 40 C + 85 C Bulk
Bourns Resettable Fuses - PPTC 6V 2.6A-HD 100A MAX
Datasheet
Product Comments
1,945In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

MF-SM SMD/SMT SMD/SMT 2.6 A 6 VDC 5.2 A 100 A 75 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 60V .6A-HD 40A MAX
Datasheet
7,564In Stock
Min.: 1
Mult.: 1
: 3,000

MF-R PCB Mount Radial 650 mA 60 VDC 1.3 A 40 A 480 mOhms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.25A 72V RADIAL LEADED
Datasheet
9,227In Stock
Min.: 1
Mult.: 1

MF-RX/72 PCB Mount Radial 250 mA 72 VDC 500 mA 40 A 1.95 Ohms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.9A 60V RADIAL LEADED
Datasheet
7,354In Stock
Min.: 1
Mult.: 1
: 4,000

MF-R/90 PCB Mount Radial 900 mA 30 V 1.8 A 40 A 120 mOhms - 40 C + 85 C 5.1 mm Ammo Pack
Bourns Resettable Fuses - PPTC 60V .145A-HD 3A MAX
Datasheet
5,782In Stock
Min.: 1
Mult.: 1
: 6,000

MF-RX/250 PCB Mount Radial 145 mA 60 VDC 280 mA 3 A 6 Ohms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC 2920 Resettable SMD PPTC 1.85/24V
Datasheet
2,820In Stock
12,000Expected 02/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

MF-LSMF SMD/SMT SMD/SMT 1.85 A 24 VDC 3.7 A 40 A 150 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC PTC RESETTABLE 6.0A 30V RADIAL LEADED
Datasheet
2,468In Stock
Min.: 1
Mult.: 1
MF-R PCB Mount Radial 6 A 30 VDC 12 A 40 A 20 mOhms - 40 C + 85 C 10.2 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.3A 60V RADIAL LEADED
Datasheet
6,040In Stock
Min.: 1
Mult.: 1
: 3,000

MF-R PCB Mount Radial 300 mA 60 VDC 600 mA 40 A 1.36 Ohms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC 16V .7A-HD 40A MAX
Datasheet
5,067In Stock
Min.: 1
Mult.: 1
: 3,000

MF-RHT PCB Mount Radial 700 mA 30 V 1.4 A 40 A 800 mOhms - 40 C + 125 C 5.1 mm AEC-Q100 Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.12A 240V RADIAL LEADED
Datasheet
4,628In Stock
Min.: 1
Mult.: 1
: 4,000

MF-RM PCB Mount Radial 120 mA 240 VAC 300 mA 1.2 A 12 Ohms - 20 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.2A 72V RADIAL LEADED
Datasheet
10,134In Stock
Min.: 1
Mult.: 1

MF-RX/72 PCB Mount Radial 200 mA 72 VDC 400 mA 40 A 2.84 Ohms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.5A 72V RADIAL LEADED
Datasheet
5,706In Stock
Min.: 1
Mult.: 1
: 3,000

MF-RX/72 PCB Mount Radial 500 mA 72 VDC 1 A 770 mOhms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 1.35A 72V RADIAL LEADED
Datasheet
7,452In Stock
Min.: 1
Mult.: 1

MF-RX/72 PCB Mount Radial 1.35 A 72 VDC 2.7 A 40 A 190 mOhms - 40 C + 85 C 5.1 mm Bulk