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 (EUR) 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 PTC 0.12A 250V RADIAL LEADED UNCOATED
Datasheet
153In Stock
Min.: 1
Mult.: 1

MF-RX/250 PCB Mount Radial 120 mA 60 VDC 240 mA 3 A 10 Ohms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.25A 72V RADIAL LEADED
Datasheet
75In Stock
Min.: 1
Mult.: 1
: 3.000

MF-RX/72 PCB Mount Radial 250 mA 72 VDC 500 mA 40 A 1.95 Ohms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.4A 72V RADIAL LEADED
Datasheet
2.275In Stock
Min.: 1
Mult.: 1
: 3.000

MF-RX/72 PCB Mount Radial 400 mA 72 VDC 800 mA 40 A 860 mOhms - 40 C + 85 C 5.1 mm Reel, Cut Tape
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 5.5A-HD 20A PTC
Datasheet
2.158In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 30V 6A-HD 40A MAX
Datasheet
1In Stock
6.000Expected 8/31/2026
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 7 A 30 VDC 14 A 40 A 20 mOhms - 40 C + 85 C 10.2 mm Bulk
Bourns Resettable Fuses - PPTC 33V 1.85A-HD 40A MAX
Datasheet
11.951Expected 8/27/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

MF-LSMF SMD/SMT SMD/SMT 1.85 A 33 VDC 3.7 A 40 A 150 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 60V .4A-HD 40A MAX
Datasheet
8.300Expected 10/6/2026
Min.: 1
Mult.: 1
: 3.000

MF-R PCB Mount Radial 400 mA 60 VDC 800 mA 40 A 860 mOhms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC RESETTABLE FUSE 220VOLT 25OHM
Datasheet
13.300Expected 11/16/2026
Min.: 1
Mult.: 1

CMF-RL PCB Mount Radial 60 mA 230 VAC 150 mA 900 mA 25 Ohms - 40 C + 125 C 5 mm Bulk
Bourns Resettable Fuses - PPTC 24V 1A-HD 100A MAX
Datasheet
6.000Expected 10/21/2026
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 6V 2.0A-HD 50A SMD
Datasheet
8.179Expected 9/8/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

MF-PSML SMD/SMT SMD/SMT 2 A 6 VDC 4 A 50 A 50 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC PTC RESETTABLE 5.0A 16V RADIAL LEADED
Datasheet
3In Stock
Min.: 1
Mult.: 1

MF-RG PCB Mount Radial 5 A 16 VDC 8.5 A 100 A 23 mOhms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC 72V .9A-HD 40A MAX
Datasheet
7.493Expected 9/29/2026
Min.: 1
Mult.: 1

MF-RX/72 PCB Mount Radial 900 mA 72 VDC 1.8 A 40 A 310 mOhms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC 16V 1.36A-HD 100A MAX
Datasheet
Product Comments
8.000Stock Available
More Info Available
MouseReel Available
Min.: 2.000
Mult.: 2.000
: 4.000

MF-SMHT PCB Mount SMD/SMT 1.36 A 16 V 2.72 A 100 A 330 mOhms - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC PTC RESETTABLE 1.75A 6V SMD 1206
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 30.000
Mult.: 3.000
: 3.000

MF-NSMF PCB Mount SMD/SMT 1.75 A 6 V 3.5 A 1.75 A - 40 C + 85 C Reel
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.05A 60V RADIAL LEADED
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1
: 3.000

MF-R PCB Mount Radial 50 mA 60 V 100 mA 40 A 11.1 Ohms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.1A 60V RADIAL LEADED
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 7.000
Mult.: 3.500

MF-R PCB Mount Radial 100 mA 60 V 200 mA 40 A 4.5 Ohms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.1A 60V RADIAL LEADED
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 9.000
Mult.: 3.000
: 3.000

MF-R PCB Mount Radial 100 mA 60 V 200 mA 40 A 4.5 Ohms - 40 C + 85 C 5.1 mm Reel
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.1A 60V RADIAL LEADED
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 8.000
Mult.: 4.000
: 4.000

MF-R PCB Mount Radial 100 mA 60 V 200 mA 40 A 4.5 Ohms - 40 C + 85 C 5.1 mm Ammo Pack
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.17A 60V RADIAL LEADED
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 7.000
Mult.: 3.500

MF-R PCB Mount Radial 170 mA 60 V 340 mA 40 A 3.2 Ohms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.17A 60V RADIAL LEADED
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 9.000
Mult.: 3.000
: 3.000

MF-R PCB Mount Radial 170 mA 60 V 340 mA 40 A 3.2 Ohms - 40 C + 85 C 5.1 mm Reel
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.17A 60V RADIAL LEADED
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 8.000
Mult.: 4.000
: 4.000

MF-R PCB Mount Radial 170 mA 60 VDC 340 mA 40 A 3.2 Ohms - 40 C + 85 C 5.1 mm Ammo Pack
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.17A 60V RADIAL LEADED
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 8.000
Mult.: 4.000
: 4.000

MF-R PCB Mount Radial 170 mA 60 V 340 mA 40 A 3.2 Ohms - 40 C + 85 C 5.1 mm Ammo Pack
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.2A 60V RADIAL LEADED
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 7.000
Mult.: 3.500

MF-R PCB Mount Radial 200 mA 60 V 400 mA 40 A 2.84 Ohms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.2A 60V RADIAL LEADED
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 8.000
Mult.: 4.000
: 4.000

MF-R PCB Mount Radial 200 mA 60 V 400 mA 40 A 2.84 Ohms - 40 C + 85 C 5.1 mm Ammo Pack