Resettable Fuses - PPTC

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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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Part #

Resettable Fuses - PPTC 240V .55A-HD 7A MAX

MF-RM055/240-2
Bourns
1: S/4.24
3,229In Stock

Mfr. Part #
MF-RM055/240-2

Mouser Part #
652-MF-RM055/240-2

Bourns

Resettable Fuses - PPTC 240V .55A-HD 7A MAX

Learn More

Datasheet

3,229In Stock

Cut Tape

S/4.24

S/3.82

S/3.08

S/2.92

View

Reel

S/1.96

Min.: 1
Mult.: 1

: 4,000

MF-RM

PCB Mount

Radial

550 mA

240 VAC

1.25 A

7 A

1.45 Ohms

- 20 C

+ 85 C

5.1 mm

Reel, Cut Tape

Resettable Fuses - PPTC PTC RESETTABLE 0.65A 72V RADIAL LEADED

MF-RX065/72-2
Bourns
1: S/2.72
10,380In Stock

Mfr. Part #
MF-RX065/72-2

Mouser Part #
652-MF-RX065/72-2

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 0.65A 72V RADIAL LEADED

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Datasheet

10,380In Stock

Cut Tape

S/2.72

S/2.11

S/1.98

S/1.49

Reel

S/1.09

View

Min.: 1
Mult.: 1

: 3,000

MF-RX/72

PCB Mount

Radial

650 mA

72 VDC

1.3 A

480 mOhms

- 40 C

+ 85 C

10.2 mm

Reel, Cut Tape

Resettable Fuses - PPTC PTC RESETTABLE 0.75A 72V RADIAL LEADED

MF-RX075/72-2
Bourns
1: S/2.22
11,965In Stock

Mfr. Part #
MF-RX075/72-2

Mouser Part #
652-MF-RX075/72-2

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 0.75A 72V RADIAL LEADED

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Datasheet

11,965In Stock

Cut Tape

S/2.22

S/1.69

S/1.58

S/1.20

Reel

S/1.13

View

Min.: 1
Mult.: 1

: 3,000

MF-RX/72

PCB Mount

Radial

750 mA

72 VDC

1.5 A

400 mOhms

- 40 C

+ 85 C

5.1 mm

Reel, Cut Tape

Resettable Fuses - PPTC 72V 1.1A-HD 40A MAX

MF-RX110/72-0
Bourns
1: S/1.56
20,524In Stock

Mfr. Part #
MF-RX110/72-0

Mouser Part #
652-MF-RX110/72-0

Bourns

Resettable Fuses - PPTC 72V 1.1A-HD 40A MAX

Learn More

Datasheet

20,524In Stock

S/1.56

S/1.39

S/1.17

S/1.04

View

Min.: 1
Mult.: 1

MF-RX/72

PCB Mount

Radial

1.1 A

72 VDC

2.2 A

40 A

250 mOhms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC 72V 1.35A-HD 40A MAX

MF-RX135/72-2
Bourns
1: S/1.71
10,239In Stock

Mfr. Part #
MF-RX135/72-2

Mouser Part #
652-MF-RX135/72-2

Bourns

Resettable Fuses - PPTC 72V 1.35A-HD 40A MAX

Learn More

Datasheet

10,239In Stock

Cut Tape

S/1.71

S/1.49

S/1.31

S/1.20

View

Reel

S/0.779

Min.: 1
Mult.: 1

: 3,000

MF-RX/72

PCB Mount

Radial

1.35 A

72 VDC

2.7 A

40 A

190 mOhms

- 40 C

+ 85 C

5.1 mm

Reel, Cut Tape

Resettable Fuses - PPTC 72V 1.6A-HD 40A MAX

MF-RX160/72-2
Bourns
1: S/1.79
12,587In Stock

Mfr. Part #
MF-RX160/72-2

Mouser Part #
652-MF-RX160/72-2

Bourns

Resettable Fuses - PPTC 72V 1.6A-HD 40A MAX

Learn More

Datasheet

12,587In Stock

Cut Tape

S/1.79

S/1.63

S/1.35

S/1.22

Reel

S/0.802

View

Min.: 1
Mult.: 1

: 3,000

MF-RX/72

PCB Mount

Radial

1.6 A

72 VDC

3.2 A

40 A

140 mOhms

- 40 C

+ 85 C

5.1 mm

Reel, Cut Tape

Resettable Fuses - PPTC 72V 1.85A-HD 40A MAX

MF-RX185/72-2
Bourns
1: S/2.06
12,099In Stock

Mfr. Part #
MF-RX185/72-2

Mouser Part #
652-MF-RX185/72-2

Bourns

Resettable Fuses - PPTC 72V 1.85A-HD 40A MAX

Learn More

Datasheet

12,099In Stock

Cut Tape

S/2.06

S/1.90

S/1.58

S/1.45

Reel

S/0.923

View

Min.: 1
Mult.: 1

: 3,000

MF-RX/72

PCB Mount

Radial

1.85 A

72 VDC

3.7 A

40 A

120 mOhms

- 40 C

+ 85 C

5.1 mm

Reel, Cut Tape

Resettable Fuses - PPTC 72V 3A-HD 40A MAX

MF-RX300/72-0
Bourns
1: S/3.15
5,296In Stock

Mfr. Part #
MF-RX300/72-0

Mouser Part #
652-MF-RX300/72-0

Bourns

Resettable Fuses - PPTC 72V 3A-HD 40A MAX

Learn More

Datasheet

5,296In Stock

S/3.15

S/2.64

S/2.23

S/1.90

View

Min.: 1
Mult.: 1

MF-RX/72

PCB Mount

Radial

3 A

72 VDC

6 A

40 A

60 mOhms

- 40 C

+ 85 C

10.2 mm

Bulk

Resettable Fuses - PPTC 250V 130MA-HD 3A MAX

MF-SM013/250-2
Bourns
1: S/3.04
11,074In Stock
15,000Expected 10/9/2026

Mfr. Part #
MF-SM013/250-2

Mouser Part #
652-MF-SM013/250-2

Bourns

Resettable Fuses - PPTC 250V 130MA-HD 3A MAX

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Datasheet

Product Comments

11,074In Stock

15,000Expected 10/9/2026

Cut Tape

S/3.04

S/2.56

S/2.40

S/1.81

Reel

S/1.42

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

MF-SM/250

SMD/SMT

130 mA

60 VDC

3 A

12 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 250V 130MA-HD 3A MAX

MF-SM013/250V-2
Bourns
1: S/3.23
7,543In Stock

Mfr. Part #
MF-SM013/250V-2

Mouser Part #
652-MF-SM013/250V-2

Bourns

Resettable Fuses - PPTC 250V 130MA-HD 3A MAX

Learn More

Datasheet

7,543In Stock

Cut Tape

S/3.23

S/2.88

S/2.32

S/2.22

View

Reel

S/1.52

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

MF-SM013/250V

SMD/SMT

130 mA

60 VDC

3 A

7 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 60V 300MA-HD 10A MAX

MF-SM030-2
Bourns
1: S/1.48
26,397In Stock

Mfr. Part #
MF-SM030-2

Mouser Part #
652-MF-SM030-2

Bourns

Resettable Fuses - PPTC 60V 300MA-HD 10A MAX

Learn More

Datasheet

Product Comments

26,397In Stock

Cut Tape

S/1.48

S/1.35

S/1.12

S/0.996

View

Reel

S/0.724

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

MF-SM

SMD/SMT

300 mA

60 VDC

600 mA

40 A

4.8 Ohms

2920 (7450 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 33V 1.1A-HD 40A MAX

MF-SM100/33-2
Bourns
1: S/1.60
8,953In Stock
32,000Expected 9/29/2026

Mfr. Part #
MF-SM100/33-2

Mouser Part #
652-MF-SM100/33-2

Bourns

Resettable Fuses - PPTC 33V 1.1A-HD 40A MAX

Learn More

Datasheet

Product Comments

8,953In Stock

32,000Expected 9/29/2026

Cut Tape

S/1.60

S/1.46

S/1.21

S/1.12

View

Reel

S/0.779

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

MF-SM

SMD/SMT

1.1 A

33 VDC

2.2 A

40 A

410 mOhms

2920 (7450 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 33V 1.8A-HD 40A MAX

MF-SM185/33-2
Bourns
1: S/1.67
12,737In Stock

Mfr. Part #
MF-SM185/33-2

Mouser Part #
652-MF-SM185/33-2

Bourns

Resettable Fuses - PPTC 33V 1.8A-HD 40A MAX

Learn More

Datasheet

Product Comments

12,737In Stock

Cut Tape

S/1.67

S/1.52

S/1.26

S/1.15

View

Reel

S/0.779

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

MF-SM

SMD/SMT

1.8 A

33 VDC

3.6 A

40 A

150 mOhms

3425 (8764 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC PTC RESETTABLE 1.1A 33V SMD 2018

MF-SMDF100/33X-2
Bourns
1: S/2.84
7,083In Stock

Mfr. Part #
MF-SMDF100/33X-2

Mouser Part #
652-MF-SMDF100/33X-2

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 1.1A 33V SMD 2018

Learn More

Datasheet

7,083In Stock

Cut Tape

S/2.84

S/2.35

S/2.08

S/1.67

View

Reel

S/1.33

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

MF-SMDF

PCB Mount

SMD/SMT

1.1 A

33 VDC

2.2 A

40 A

400 mOhms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 13V 500MA-HD 40A MAX

MF-USMF050-2
Bourns
1: S/1.36
17,329In Stock

Mfr. Part #
MF-USMF050-2

Mouser Part #
652-MF-USMF050-2

Bourns

Resettable Fuses - PPTC 13V 500MA-HD 40A MAX

Learn More

Datasheet

17,329In Stock

Cut Tape

S/1.36

S/1.16

S/1.03

S/0.907

Reel

S/0.638

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

MF-USMF

SMD/SMT

500 mA

13.2 VDC

1 A

40 A

900 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 6V 750MA-HD 40A MAX

MF-USMF075-2
Bourns
1: S/1.67
12,801In Stock

Mfr. Part #
MF-USMF075-2

Mouser Part #
652-MF-USMF075-2

Bourns

Resettable Fuses - PPTC 6V 750MA-HD 40A MAX

Learn More

Datasheet

12,801In Stock

Cut Tape

S/1.67

S/1.28

S/1.20

S/0.907

Reel

S/0.658

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

MF-USMF

SMD/SMT

750 mA

6 VDC

1.5 A

40 A

450 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 6V 1.1A-HD 40A MAX

MF-USMF110-2
Bourns
1: S/1.36
24,684In Stock

Mfr. Part #
MF-USMF110-2

Mouser Part #
652-MF-USMF110-2

Bourns

Resettable Fuses - PPTC 6V 1.1A-HD 40A MAX

Learn More

Datasheet

24,684In Stock

Cut Tape

S/1.36

S/1.24

S/1.03

S/0.907

Reel

S/0.638

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

MF-USMF

SMD/SMT

1.1 A

6 VDC

2.2 A

40 A

210 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC PTC RESETTABLE 1.5A 6V SMD 1210

MF-USMF150-2
Bourns
1: S/1.95
11,774In Stock

Mfr. Part #
MF-USMF150-2

Mouser Part #
652-MF-USMF150-2

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 1.5A 6V SMD 1210

Learn More

Datasheet

11,774In Stock

Cut Tape

S/1.95

S/1.47

S/1.38

S/1.04

Reel

S/0.985

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

MF-USMF

SMD/SMT

1.5 A

6 VDC

3 A

40 A

110 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 6V 350MA-HD 40A MAX

MF-FSMF035X-2
Bourns
1: S/1.67
10,460In Stock
18,000Expected 9/8/2026

Mfr. Part #
MF-FSMF035X-2

Mouser Part #
652-MFFSMF035X-2

Bourns

Resettable Fuses - PPTC 6V 350MA-HD 40A MAX

Learn More

Datasheet

10,460In Stock

18,000Expected 9/8/2026

Cut Tape

S/1.67

S/1.42

S/1.26

S/1.06

View

Reel

S/0.697

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

MF-FSMF

PCB Mount

SMD/SMT

350 mA

6 VDC

750 mA

40 A

1.4 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 6V 500MA-HD 40A MAX

MF-FSMF050X-2
Bourns
1: S/1.67
75,464In Stock

Mfr. Part #
MF-FSMF050X-2

Mouser Part #
652-MFFSMF050X-2

Bourns

Resettable Fuses - PPTC 6V 500MA-HD 40A MAX

Learn More

Datasheet

75,464In Stock

Cut Tape

S/1.67

S/1.44

S/1.26

S/1.09

View

Reel

S/0.755

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

MF-FSMF

PCB Mount

SMD/SMT

500 mA

6 VDC

1 A

40 A

800 mOhms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 60V .2A-HD 40A MAX

MF-R020
Bourns
1: S/1.44
14,144In Stock

Mfr. Part #
MF-R020

Mouser Part #
652-MFR020

Bourns

Resettable Fuses - PPTC 60V .2A-HD 40A MAX

Learn More

Datasheet

14,144In Stock

S/1.44

S/1.26

S/1.08

S/0.95

View

Min.: 1
Mult.: 1

MF-R

PCB Mount

Radial

200 mA

60 VDC

400 mA

40 A

2.84 Ohms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC 60V .4A-HD 40A MAX

MF-R040
Bourns
1: S/1.56
10,809In Stock

Mfr. Part #
MF-R040

Mouser Part #
652-MFR040

Bourns

Resettable Fuses - PPTC 60V .4A-HD 40A MAX

Learn More

Datasheet

10,809In Stock

S/1.56

S/1.41

S/1.17

S/1.08

View

Min.: 1
Mult.: 1

MF-R

PCB Mount

Radial

400 mA

60 VDC

800 mA

40 A

860 mOhms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC 60V .75A-HD 40A MAX

MF-R075
Bourns
1: S/1.56
11,014In Stock

Mfr. Part #
MF-R075

Mouser Part #
652-MFR075

Bourns

Resettable Fuses - PPTC 60V .75A-HD 40A MAX

Learn More

Datasheet

11,014In Stock

S/1.56

S/1.35

S/1.17

S/1.04

View

Min.: 1
Mult.: 1

MF-R

PCB Mount

Radial

750 mA

60 VDC

1.5 A

40 A

400 mOhms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC 30V 1.1A-HD 40A MAX

MF-R110
Bourns
1: S/1.56
19,020In Stock

Mfr. Part #
MF-R110

Mouser Part #
652-MFR110

Bourns

Resettable Fuses - PPTC 30V 1.1A-HD 40A MAX

Learn More

Datasheet

19,020In Stock

S/1.56

S/1.41

S/1.17

S/1.08

View

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

Resettable Fuses - PPTC 30V 1.6A-HD 40A MAX

MF-R160
Bourns
1: S/1.79
10,282In Stock

Mfr. Part #
MF-R160

Mouser Part #
652-MFR160

Bourns

Resettable Fuses - PPTC 30V 1.6A-HD 40A MAX

Learn More

Datasheet

10,282In Stock

S/1.79

S/1.63

S/1.35

S/1.25

View

Min.: 1
Mult.: 1

MF-R

PCB Mount

Radial

1.6 A

30 VDC

3.2 A

40 A

105 mOhms

- 40 C

+ 85 C

5.1 mm

Bulk

Multifuse® PTC Resettable Fuses

Customer Service Office

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Support

CMF-RL
CMF-SDP
MF-FSMF
MF-GSMF
MF-LR
MF-LS
MF-LSMF
MF-MSFM
MF-MSMF
MF-NSHT
MF-NSMF
MF-NSML
MF-PSMF
MF-PSML
MF-R
MF-R/600
MF-R/90
MF-RG
MF-RHS
MF-RHT

50 mA
60 mA
65 mA
70 mA
75 mA
80 mA
90 mA
100 mA
110 mA
120 mA
130 mA
140 mA
145 mA
150 mA
160 mA
170 mA
180 mA
200 mA
250 mA
300 mA

6 V
6 VDC
8 V
9 VDC
10 V
10 VDC
12 V
12 VDC
13.2 VDC
15 V
15 VDC
16 V
16 VDC
20 V
20 VDC
24 V
24 VDC
30 V
30 VDC
32 VDC

100 mA
120 mA
150 mA
190 mA
200 mA
220 mA
230 mA
240 mA
260 mA
280 mA
290 mA
300 mA
340 mA
360 mA
370 mA
400 mA
460 mA
500 mA
560 mA
600 mA

300 mA
500 mA
750 mA
900 mA
1 A
1.1 A
1.2 A
1.75 A
2 A
2.5 A
2.6 A
2.8 A
3 A
3.5 A
4.5 A
4.6 A
5.5 A
6 A
7 A
10 A

6.2 mOhms
7 mOhms
7.1 mOhms
7.4 mOhms
7.7 mOhms
8 mOhms
8.3 mOhms
9 mOhms
9.2 mOhms
9.8 mOhms
10 mOhms
11 mOhms
12 mOhms
13 mOhms
14 mOhms
14.5 mOhms
15 mOhms
15.8 mOhms
16 mOhms
16.8 mOhms