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 (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 30V 8A-HD 40A MAX
Datasheet
5,119In Stock
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 8 A 30 VDC 16 A 40 A 20 mOhms - 40 C + 85 C 10.2 mm Bulk
Bourns Resettable Fuses - PPTC 30V 9A-HD 40A MAX
Datasheet
5,983In Stock
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 9 A 30 VDC 18 A 40 A 10 mOhms - 40 C + 85 C 10.2 mm Bulk
Bourns Resettable Fuses - PPTC 30V 750MA-HD 40A MAX
Datasheet
13,618In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

MF-SM SMD/SMT SMD/SMT 750 mA 30 VDC 1.5 A 80 A 1 Ohms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 30V 1.1A-HD 40A MAX
Datasheet
Product Comments
20,610In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

MF-SM SMD/SMT SMD/SMT 1.1 A 30 VDC 2.2 A 80 A 480 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 15V 2.5A-HD 40A MAX
Datasheet
Product Comments
9,040In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

MF-SM/250 SMD/SMT SMD/SMT 2.5 A 15 VDC 5 A 100 A 85 mOhms 3425 (8764 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC Ceramic PTC
Datasheet
3,183In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 400

CMF-SDP PCB Mount SMD/SMT 130 mA 230 VAC 260 mA 2.8 A 25 Ohms - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 6V 3.8A-HD 50A SMD
Datasheet
3,736In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,500

MF-NSML SMD/SMT SMD/SMT 3.8 A 6 VDC 8 A 50 A 14 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 6V 6.0A-HD 50A SMD
Datasheet
3,959In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,500

MF-NSML SMD/SMT SMD/SMT 6 A 6 VDC 12 A 50 A 10 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 0805 SMD Polymer PTC 2.5A/6V
Datasheet
3,936In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

MF-PSML SMD/SMT SMD/SMT 2.5 A 6 VDC 5 A 50 A 40 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 30V 2A-HD 100A MAX
Datasheet
6,845In Stock
Min.: 1
Mult.: 1

MF-S Strap Mount Axial 2 A 30 VDC 4.4 A 100 A 60 mOhms - 40 C + 85 C Bulk
Bourns Resettable Fuses - PPTC 12V 3.0A-HD 50A 1210
Datasheet
4,606In Stock
Min.: 1
Mult.: 1
Reel: 3,500

MF-USML PCB Mount SMD/SMT 3 A 12 VDC 6 A 50 A 24 mOhms - 40 C + 85 C Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC 1.75A 16V NARROW STRAP 90'C SW
Datasheet
6,000In Stock
Min.: 1
Mult.: 1

MF-VS Narrow Body Strap Mount Axial 1.75 A 16 V 3.5 A 1.75 A - 40 C + 85 C Bulk
Bourns Resettable Fuses - PPTC 30V 3.5A-HD 100A MAX
Datasheet
6,175In 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 2920 Resettable SMD PPTC 1.5A/15V
Datasheet
2,287In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 6,000

MF-LSMF SMD/SMT SMD/SMT 1.5 A 15 VDC 3 A 40 A 230 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 15V 100MA-HD 40A MAX
Datasheet
3,682In Stock
15,000Expected 2026-05-11
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

MF-FSMF SMD/SMT SMD/SMT 100 mA 15 VDC 300 mA 40 A 6 Ohms 0603 (1608 metric) - 40 C + 85 C 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 RESETTABLE 0.75A 30V SMD 1812
Datasheet
6,169In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

MF-MSMF SMD/SMT SMD/SMT 750 mA 30 VDC 1.5 A 40 A 450 mOhms 1812 (4532 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 33V 750MA-HD 20A MAX
Datasheet
2,974In Stock
15,000Expected 2026-05-01
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

MF-MSMF PCB Mount SMD/SMT 750 mA 33 VDC 1.5 A 20 A 400 mOhms - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 30V 350MA-HD 80A MAX
Datasheet
708In Stock
12,000Expected 2026-05-11
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

MF-NSHT PCB Mount SMD/SMT 350 mA 30 VDC 1.75 A 20 A 2.6 Ohms 1206 (3216 metric) - 40 C + 125 C AEC-Q200 Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 16V 500MA-HD 20A MAX
Datasheet
740In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

MF-NSHT PCB Mount SMD/SMT 500 mA 16 VDC 2.5 A 20 A 1.6 Ohms - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 1206 High Temp SMD Polymer PTC 0.75A/12V
Datasheet
3,846In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

MF-NSHT PCB Mount SMD/SMT 750 mA 12 VDC 3 A 40 A 700 mOhms - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 30V 200MA-HD 60A MAX
Datasheet
9,496In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

MF-NSMF PCB Mount SMD/SMT 200 mA 30 VDC 400 mA 60 A 3.3 Ohms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 16V 350MA-HD 20A MAX
Datasheet
5,214In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

MF-NSMF PCB Mount SMD/SMT 350 mA 16 VDC 750 mA 20 A 1.4 Ohms 1206 (3216 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.1A 24V SMD 0805
Datasheet
2,879In Stock
15,000Expected 2026-03-19
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

MF-PSMF PCB Mount SMD/SMT 100 mA 24 VDC 300 mA 80 A 7.5 Ohms 0805 (2012 metric) - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 6V 350MA-HD 40A MAX
Datasheet
5,199In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

MF-PSMF SMD/SMT SMD/SMT 350 mA 6 VDC 750 mA 40 A 1.2 Ohms 0805 (2012 metric) - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel