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 (USD) 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 60V .1A-HD 40A MAX
Datasheet
8,130In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-R PCB Mount Radial 100 mA 60 VDC 200 mA 40 A 4.5 Ohms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.2A 60V RADIAL LEADED
Datasheet
949In Stock
Min.: 1
Mult.: 1
Reel: 4,000

MF-R PCB Mount Radial 200 mA 60 VDC 400 mA 40 A 2.84 Ohms - 40 C + 85 C 5.1 mm Ammo Pack
Bourns Resettable Fuses - PPTC 60V .25A-HD 40A MAX
Datasheet
1,427In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-R PCB Mount Radial 250 mA 60 VDC 500 mA 40 A 1.95 Ohms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.3A 60V RADIAL LEADED
Datasheet
7,299In Stock
Min.: 1
Mult.: 1
Reel: 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 60V .4A-HD 40A MAX
Datasheet
2,881In Stock
Min.: 1
Mult.: 1
Reel: 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 PTC RESETTABLE 0.5A 60V RADIAL LEADED
Datasheet
3,320In Stock
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 500 mA 60 VDC 1 A 40 A 770 mOhms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.5A 60V RADIAL LEADED
Datasheet
2,181In Stock
Min.: 1
Mult.: 1
Reel: 4,000

MF-R PCB Mount Radial 500 mA 60 VDC 1 A 40 A 770 mOhms - 40 C + 85 C 5.1 mm Ammo Pack
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.9A 30V RADIAL LEADED
Datasheet
8,311In Stock
Min.: 1
Mult.: 1

MF-R/90 PCB Mount Radial 900 mA 30 VDC 1.8 A 40 A 120 mOhms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.9A 60V RADIAL LEADED
Datasheet
5,071In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-R/90 PCB Mount Radial 900 mA 60 VDC 1.8 A 40 A 310 mOhms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 1.1A 30V RADIAL LEADED
Datasheet
2,168In Stock
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 1.1 A 30 VDC 2.2 A 40 A 180 mOhms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC 30V 1.1A-HD 40A MAX
Datasheet
6,436In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-R PCB Mount Radial 1.1 A 30 VDC 2.2 A 40 A 180 mOhms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 1.1A 30V RADIAL LEADED
Datasheet
1,081In Stock
Min.: 1
Mult.: 1
Reel: 4,000

MF-R PCB Mount Radial 1.1 A 30 VDC 2.2 A 40 A 180 mOhms - 40 C + 85 C 5.1 mm Ammo Pack
Bourns Resettable Fuses - PPTC 16V 11A-HD 100A MAX
Datasheet
3,747In Stock
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 11 A 16 VDC 22 A 100 A 10 mOhms - 40 C + 85 C 10.2 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 1.6A 30V RADIAL LEADED
Datasheet
2,850In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-R PCB Mount Radial 1.6 A 30 VDC 3.2 A 40 A 105 mOhms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC 30V 1.85A-HD 40A MAX
Datasheet
3,553In 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 Reel, Cut Tape
Bourns Resettable Fuses - PPTC 30V 2.5A-HD 40A MAX
Datasheet
6,361In Stock
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 2.5 A 30 VDC 5 A 40 A 48 mOhms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 3.0A 30V RADIAL LEADED
Datasheet
5,164In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-R PCB Mount Radial 3 A 30 VDC 6 A 40 A 50 mOhms - 40 C + 85 C 5.1 mm Ammo Pack
Bourns Resettable Fuses - PPTC 30V 4A-HD 40A MAX
Datasheet
4,649In Stock
9,000Expected 17/02/2026
Min.: 1
Mult.: 1
Reel: 3,000

MF-R PCB Mount Radial 4 A 30 VDC 8 A 40 A 30 mOhms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC 30V 4A-HD 40A MAX
Datasheet
3,376In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-R PCB Mount Radial 4 A 30 VDC 8 A 40 A 30 mOhms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC 30V 5A-HD 40A MAX
Datasheet
3,852In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-R PCB Mount Radial 5 A 30 VDC 10 A 40 A 30 mOhms - 40 C + 85 C 10.2 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 6.0A 30V RADIAL LEADED
Datasheet
3,074In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-R/600 PCB Mount Radial 6 A 30 VDC 12 A 6 A 20 mOhms - 40 C + 85 C 10.2 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 7.0A 30V RADIAL LEADED
Datasheet
2,353In Stock
Min.: 1
Mult.: 1
Reel: 3,000

MF-R PCB Mount Radial 7 A 30 VDC 14 A 40 A 20 mOhms - 40 C + 85 C 10.2 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC 16V 10A-HD 100A MAX
Datasheet
1,542In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

MF-RG PCB Mount Radial 10 A 16 VDC 17 A 100 A 7.1 mOhms - 40 C + 85 C 5.1 mm Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC PTC RESETTABLE 5.0A 16V RADIAL LEADED
Datasheet
223In 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 PTC 3.5A 16V RADIAL LEADED HI-TEMP
Datasheet
278In Stock
Min.: 1
Mult.: 1

MF-RHS Through Hole Radial 3.5 A 16 V 7 A 100 A 50 mOhms - 40 C + 125 C 5.1 mm Bulk