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.

Results: 755
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (CHF) 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 50MA-HD 10A MAX
Datasheet
52’172In Stock
87’000Expected 10/8/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3’000

MF-USMF SMD/SMT SMD/SMT 50 mA 30 VDC 150 mA 10 A 50 Ohms 1210 (3225 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 30V 100MA-HD 10A MAX
Datasheet
34’461In Stock
27’000Expected 3/5/2027
MouseReel Available
Min.: 1
Mult.: 1
: 3’000

MF-USMF SMD/SMT SMD/SMT 100 mA 30 VDC 300 mA 10 A 15 Ohms 1210 (3225 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 30V 200MA-HD 10A MAX
Datasheet
52’497In Stock
42’000Expected 11/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3’000

MF-USMF SMD/SMT SMD/SMT 200 mA 30 VDC 400 mA 10 A 5 Ohms 1210 (3225 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 15V 100MA-HD 40A MAX
Datasheet
1’715In Stock
20’000Expected 11/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 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 2920 Resettable SMD PPTC 0.75A/30V
Datasheet
3’120In Stock
12’000Expected 11/23/2026
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

MF-LSMF SMD/SMT SMD/SMT 750 mA 30 VDC 1.5 A 40 A 1 Ohms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 2920 Resettable SMD PPTC 1.25A/33V
Datasheet
2’572In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4’000

MF-LSMF SMD/SMT SMD/SMT 1.25 A 33 VDC 2.5 A 40 A 250 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 2920 Resettable SMD PPTC 1.5A/15V
Datasheet
2’230In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 2920 Resettable SMD PPTC 3.0A/16V
Datasheet
1’796In Stock
12’000Expected 8/31/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4’000

MF-LSMF SMD/SMT SMD/SMT 3 A 16 VDC 5 A 40 A 48 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC
Datasheet
552In Stock
12’000Expected 10/22/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2’000

MF-MSFM PCB Mount SMD/SMT 100 mA 33 V 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC
Datasheet
560In Stock
12’000Expected 9/3/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2’000

MF-MSFM PCB Mount SMD/SMT 200 mA 33 V 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC
Datasheet
531In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1’000

MF-MSFM PCB Mount SMD/SMT 300 mA 60 V 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC
Datasheet
291In Stock
12’000Expected 1/6/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1’000

MF-MSFM PCB Mount SMD/SMT 500 mA 60 V 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 33V 750MA-HD 20A MAX
Datasheet
4’884In Stock
12’000Expected 11/6/2026
MouseReel Available
Min.: 1
Mult.: 1
: 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 24V 1.5A-HD 40A MAX
Datasheet
4’981In Stock
36’000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3’000

MF-MSMF SMD/SMT SMD/SMT 1.5 A 24 VDC 3 A 20 A 120 mOhms 1812 (4532 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC
Datasheet
320In Stock
12’000Expected 11/9/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1’500

MF-MSFM PCB Mount SMD/SMT 2 A 12 V 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC
Datasheet
351In Stock
12’000Expected 9/2/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1’500

MF-MSFM PCB Mount SMD/SMT 2 A 16 V 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 30V 200MA-HD 20A MAX
Datasheet
7’994In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3’000

MF-NSHT PCB Mount SMD/SMT 200 mA 30 VDC 1 A 20 A 5 Ohms - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 16V 500MA-HD 20A MAX
Datasheet
305In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
430In Stock
12’000Expected 11/9/2026
MouseReel Available
Min.: 1
Mult.: 1
: 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 6V 750MA-HD 100A MAX
Datasheet
4’722In Stock
24’000Expected 10/9/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3’000

MF-NSMF SMD/SMT SMD/SMT 750 mA 6 VDC 1.5 A 100 A 400 mOhms 1206 (3216 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Bourns Resettable Fuses - PPTC 6V 1.5A-HD 100A MAX
Datasheet
9’416In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3’000

MF-NSMF SMD/SMT SMD/SMT 1.5 A 6 VDC 3 A 100 A 130 mOhms 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
6’294In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 60V .2A-HD 40A MAX
Datasheet
6’263In Stock
Min.: 1
Mult.: 1
: 3’000

MF-R PCB Mount Radial 200 mA 60 VDC 400 mA 40 A 2.84 Ohms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Resettable Fuses - PPTC PTC RESETTABLE 0.2A 60V RADIAL LEADED
Datasheet
332In Stock
Min.: 1
Mult.: 1
: 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 PTC RESETTABLE 0.5A 60V RADIAL LEADED
Datasheet
2’927In 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