MF-R Multifuse® PTC Resettable Fuses

Bourns MF-R Multifuse® PTC Resettable Fuses provide load protection almost anywhere there is a low-voltage power supply, including computers and peripherals, general electronics, and automotive applications. Bourns MF-R fuses feature radial leads and cured, flame-retardant epoxy polymer insulation that meets UL 94V-0 requirements. These fuses are RoHS compliant and halogen free.

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Description Datasheet Availability Pricing (TWD) 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
Minimum Operating Temperature
Maximum Operating Temperature
Lead Spacing
Packaging
Bourns Resettable Fuses - PPTC 60V .1A-HD 40A MAX
Datasheet
8,505In Stock
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 100 mA 60 VDC 200 mA 40 A 4.5 Ohms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC 60V .17A-HD 40A MAX
Datasheet
6,521In Stock
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 170 mA 60 VDC 340 mA 40 A 3.2 Ohms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC 60V .25A-HD 40A MAX
Datasheet
5,301In Stock
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 250 mA 60 VDC 500 mA 40 A 1.95 Ohms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC 60V .3A-HD 40A MAX
Datasheet
9,194In Stock
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 300 mA 60 VDC 600 mA 40 A 1.36 Ohms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC 60V .5A-HD 40A MAX
Datasheet
5,004In Stock
18,000Expected 10/6/2026
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 60V .65A-HD 40A MAX
Datasheet
5,912In Stock
9,000Expected 9/3/2026
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 650 mA 60 VDC 1.3 A 40 A 480 mOhms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC 30V 1.35A-HD 40A MAX
Datasheet
7,752In Stock
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 1.35 A 30 VDC 2.7 A 40 A 115 mOhms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC 30V 1.85A-HD 40A MAX
Datasheet
2,430In Stock
12,000Expected 10/6/2026
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 1.85 A 30 VDC 3.7 A 40 A 70 mOhms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC 30V 5A-HD 40A MAX
Datasheet
3,170In Stock
9,000Expected 10/6/2026
Min.: 1
Mult.: 1

MF-R PCB Mount Radial 5 A 30 VDC 10 A 40 A 30 mOhms - 40 C + 85 C 10.2 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 1.85A 30V RADIAL LEADED
Datasheet
82In Stock
Min.: 1
Mult.: 1
: 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 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 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 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
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.25A 60V RADIAL LEADED
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 7,000
Mult.: 3,500

MF-R PCB Mount Radial 250 mA 60 V 500 mA 40 A 1.95 Ohms - 40 C + 85 C 5.1 mm Bulk
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.25A 60V RADIAL LEADED
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 9,000
Mult.: 3,000
: 3,000

MF-R PCB Mount Radial 250 mA 60 V 500 mA 40 A 1.95 Ohms - 40 C + 85 C 5.1 mm Reel
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.25A 60V RADIAL LEADED
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 8,000
Mult.: 4,000
: 4,000

MF-R PCB Mount Radial 250 mA 60 VDC 500 mA 40 A 1.95 Ohms - 40 C + 85 C 5.1 mm Ammo Pack