Resettable Fuses - PPTC – Mouser Australia

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MF-USML/X Low Ohmic PPTC Resettable Fuses

Bourns MF-USML/X Series are resistance surface mount Polymer Positive Temperature Coefficient (PPTC) resettable fuses with a 12V rating. The low ohmic series utilizes Bourns freeXpansion™ design, which increases the performance of the resettable fuse with higher hold currents (I_hold), higher voltages (Vmax), improved resistance stability, and a smaller footprint. The fuses can now achieve 5.5A I_hold at 12V_DCand current ratings of 1.75A to 5.5A in a space-saving 1210 package. Model MF-USML/X fuses are ideal for Li-ion battery packs, motherboards, and portable consumer electronic I/O port protection. The series is designed to protect against both overcurrent and overtemperature events within the designated specifications.

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Part #

Resettable Fuses - PPTC 6V 1.75A-HD 50A SMD

MF-USML175/6-2
Bourns
1: $1.62
623In Stock

Mfr. Part No.
MF-USML175/6-2

Mouser Part No
652-MF-USML175/6-2

Bourns

Resettable Fuses - PPTC 6V 1.75A-HD 50A SMD

Learn More

Datasheet

623In Stock

Cut Tape

$1.62

$1.21

$0.918

$0.89

View

Reel

$0.539

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

MF-USML6-2

SMD/SMT

1.75 A

6 VDC

3.5 A

50 A

50 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 1210 SMD Polymer PTC 5.5A/6V

MF-USML550/6-2
Bourns
1: $1.62
1,163In Stock

Mfr. Part No.
MF-USML550/6-2

Mouser Part No
652-MF-USML550/6-2

Bourns

Resettable Fuses - PPTC 1210 SMD Polymer PTC 5.5A/6V

Learn More

Datasheet

1,163In Stock

Cut Tape

$1.62

$1.21

$0.918

$0.89

Reel

$0.565

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML6-2

SMD/SMT

5.5 A

12 VDC

11 A

50 A

10 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 6V 2.6A-HD 50A SMD

MF-USML260/6-2
Bourns
1: $1.57
1,656In Stock

Mfr. Part No.
MF-USML260/6-2

Mouser Part No
652-MF-USML260/6-2

Bourns

Resettable Fuses - PPTC 6V 2.6A-HD 50A SMD

Learn More

Datasheet

1,656In Stock

Cut Tape

$1.57

$1.32

$1.22

$1.12

View

Reel

$0.573

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

MF-USML6-2

SMD/SMT

2.6 A

6 VDC

5.2 A

50 A

30 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 6V 4.5A-HD 20A PTC

MF-USML450/6-2
Bourns
1: $1.62
3,291In Stock

Mfr. Part No.
MF-USML450/6-2

Mouser Part No
652-MF-USML450/6-2

Bourns

Resettable Fuses - PPTC 6V 4.5A-HD 20A PTC

Learn More

Datasheet

3,291In Stock

Cut Tape

$1.62

$1.21

$0.918

$0.89

View

Reel

$0.544

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML6-2

SMD/SMT

4.5 A

6 VDC

9 A

50 A

14 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 12V 4.5A-HD 50A 1210

MF-USML450/12-2
Bourns
1: $1.09
2,587In Stock

Mfr. Part No.
MF-USML450/12-2

Mouser Part No
652-MF-USML450/12-2

Bourns

Resettable Fuses - PPTC 12V 4.5A-HD 50A 1210

Learn More

Datasheet

2,587In Stock

Cut Tape

$1.09

$0.925

$0.792

$0.771

Reel

$0.651

View

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML

PCB Mount

SMD/SMT

4.5 A

12 VDC

9 A

50 A

14 mOhms

- 40 C

+ 85 C

Reel, Cut Tape

Resettable Fuses - PPTC 6V 2.0A-HD 50A SMD

MF-USML200/6-2
Bourns
1: $1.62
3,343In Stock

Mfr. Part No.
MF-USML200/6-2

Mouser Part No
652-MF-USML200/6-2

Bourns

Resettable Fuses - PPTC 6V 2.0A-HD 50A SMD

Learn More

Datasheet

3,343In Stock

Cut Tape

$1.62

$1.21

$0.918

$0.89

View

Reel

$0.539

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

MF-USML6-2

SMD/SMT

2 A

6 VDC

4 A

50 A

40 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 12V 2.0A-HD 50A 1210

MF-USML200/12-2
Bourns
1: $1.73
5,171In Stock

Mfr. Part No.
MF-USML200/12-2

Mouser Part No
652-MF-USML200/12-2

Bourns

Resettable Fuses - PPTC 12V 2.0A-HD 50A 1210

Learn More

Datasheet

5,171In Stock

Cut Tape

$1.73

$1.31

$0.989

$0.958

View

Reel

$0.618

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

MF-USML

PCB Mount

SMD/SMT

2 A

12 VDC

4 A

50 A

40 mOhms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 12V 3.0A-HD 50A 1210

MF-USML300/12-2
Bourns
1: $1.09
4,603In Stock

Mfr. Part No.
MF-USML300/12-2

Mouser Part No
652-MF-USML300/12-2

Bourns

Resettable Fuses - PPTC 12V 3.0A-HD 50A 1210

Learn More

Datasheet

4,603In Stock

Cut Tape

$1.09

$0.96

$0.914

$0.872

Reel

$0.688

View

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML

PCB Mount

SMD/SMT

3 A

12 VDC

6 A

50 A

24 mOhms

- 40 C

+ 85 C

Reel, Cut Tape

Resettable Fuses - PPTC 6V 6.0A-HD 20A PTC

MF-USML600/6-2
Bourns
1: $1.22
4,880In Stock

Mfr. Part No.
MF-USML600/6-2

Mouser Part No
652-MF-USML600/6-2

Bourns

Resettable Fuses - PPTC 6V 6.0A-HD 20A PTC

Learn More

Datasheet

4,880In Stock

Cut Tape

$1.22

$1.12

$0.614

$0.586

Reel

$0.534

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML6-2

PCB Mount

SMD/SMT

6 A

6 VDC

12 A

50 A

10 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 6V 7.0A-HD 20A PTC

MF-USML700/6-2
Bourns
1: $1.22
6,281In Stock

Mfr. Part No.
MF-USML700/6-2

Mouser Part No
652-MF-USML700/6-2

Bourns

Resettable Fuses - PPTC 6V 7.0A-HD 20A PTC

Learn More

Datasheet

6,281In Stock

Cut Tape

$1.22

$1.02

$0.891

$0.856

Reel

$0.534

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML6-2

SMD/SMT

7 A

6 VDC

14 A

50 A

8 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 12V 1.75A-HD 50A 1210

MF-USML175/12-2
Bourns
1: $1.09
2,268In Stock

Mfr. Part No.
MF-USML175/12-2

Mouser Part No
652-MF-USML175/12-2

Bourns

Resettable Fuses - PPTC 12V 1.75A-HD 50A 1210

Learn More

Datasheet

2,268In Stock

Cut Tape

$1.09

$0.96

$0.914

$0.872

View

Reel

$0.634

Min.: 1
Mult.: 1

Reel: 5,000

MF-USML

PCB Mount

SMD/SMT

1.75 A

12 VDC

3.5 A

50 A

50 mOhms

- 40 C

+ 85 C

Reel, Cut Tape

Resettable Fuses - PPTC 6V 3.0A-HD 50A SMD

MF-USML300/6-2
Bourns
1: $1.22
1,738In Stock

Mfr. Part No.
MF-USML300/6-2

Mouser Part No
652-MF-USML300/6-2

Bourns

Resettable Fuses - PPTC 6V 3.0A-HD 50A SMD

Learn More

Datasheet

1,738In Stock

Cut Tape

$1.22

$1.12

$0.918

$0.856

View

Reel

$0.573

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML6-2

SMD/SMT

3 A

6 VDC

6 A

50 A

24 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 12V 4.0A-HD 50A 1210

MF-USML400/12-2
Bourns
1: $0.832
3,462In Stock

Mfr. Part No.
MF-USML400/12-2

Mouser Part No
652-MF-USML400/12-2

Bourns

Resettable Fuses - PPTC 12V 4.0A-HD 50A 1210

Learn More

Datasheet

3,462In Stock

Cut Tape

$0.832

$0.779

$0.771

$0.722

Reel

$0.643

$0.634

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML

PCB Mount

SMD/SMT

4 A

12 VDC

8 A

50 A

18 mOhms

- 40 C

+ 85 C

Reel, Cut Tape

Resettable Fuses - PPTC 6V 4.0A-HD 20A PTC

MF-USML400/6-2
Bourns
1: $1.22
835In Stock

Mfr. Part No.
MF-USML400/6-2

Mouser Part No
652-MF-USML400/6-2

Bourns

Resettable Fuses - PPTC 6V 4.0A-HD 20A PTC

Learn More

Datasheet

835In Stock

Cut Tape

$1.22

$1.12

$0.918

$0.856

View

Reel

$0.573

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML6-2

SMD/SMT

4 A

6 VDC

8 A

50 A

18 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 12V 5.0A-HD 50A 1210

MF-USML500/12-2
Bourns
1: $1.09
3,361In Stock

Mfr. Part No.
MF-USML500/12-2

Mouser Part No
652-MF-USML500/12-2

Bourns

Resettable Fuses - PPTC 12V 5.0A-HD 50A 1210

Learn More

Datasheet

3,361In Stock

Cut Tape

$1.09

$0.96

$0.914

$0.872

Reel

$0.651

View

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML

PCB Mount

SMD/SMT

5 A

12 VDC

10 A

50 A

12 mOhms

- 40 C

+ 85 C

Reel, Cut Tape

Resettable Fuses - PPTC 12V 5.5A-HD 50A 1210

MF-USML550/12-2
Bourns
1: $1.31
797In Stock
3,500Expected 30/04/2026

Mfr. Part No.
MF-USML550/12-2

Mouser Part No
652-MF-USML550/12-2

Bourns

Resettable Fuses - PPTC 12V 5.5A-HD 50A 1210

Learn More

Datasheet

797In Stock

3,500Expected 30/04/2026

Cut Tape

$1.31

$1.05

$0.933

$0.89

Reel

$0.629

View

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML

PCB Mount

SMD/SMT

5.5 A

12 VDC

11 A

50 A

10 mOhms

- 40 C

+ 85 C

Reel, Cut Tape

Resettable Fuses - PPTC 12V 3.5A-HD 50A 1210

MF-USML350/12-2
Bourns
1: $1.09
76In Stock

Mfr. Part No.
MF-USML350/12-2

Mouser Part No
652-MF-USML350/12-2

Bourns

Resettable Fuses - PPTC 12V 3.5A-HD 50A 1210

Learn More

Datasheet

76In Stock

Cut Tape

$1.09

$0.96

$0.914

$0.872

Reel

$0.699

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML

PCB Mount

SMD/SMT

3.5 A

12 VDC

7 A

50 A

22 mOhms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 12V 2.6A-HD 50A 1210

MF-USML260/12-2
Bourns
1: $1.09
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
MF-USML260/12-2

Mouser Part No
652-MF-USML260/12-2

Bourns

Resettable Fuses - PPTC 12V 2.6A-HD 50A 1210

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$1.09

$0.96

$0.914

$0.872

View

Reel

$0.618

Min.: 1
Mult.: 1

Reel: 5,000

MF-USML

PCB Mount

SMD/SMT

2.6 A

12 V

5.2 A

50 A

30 mOhms

- 40 C

+ 85 C

Reel, Cut Tape

Resettable Fuses - PPTC 6V 3.5A-HD 50A SMD

MF-USML350/6-2
Bourns
1: $1.22
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
MF-USML350/6-2

Mouser Part No
652-MF-USML350/6-2

Bourns

Resettable Fuses - PPTC 6V 3.5A-HD 50A SMD

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$1.22

$1.12

$0.918

$0.856

View

Reel

$0.573

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML6-2

PCB Mount

SMD/SMT

3.5 A

6 V

7 A

50 A

18 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 12V 3.8A-HD 50A 1210

MF-USML380/12-2
Bourns
3,500: $0.632
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
MF-USML380/12-2

Mouser Part No
652-MF-USML380/12-2

Bourns

Resettable Fuses - PPTC 12V 3.8A-HD 50A 1210

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Reel

$0.632

$0.621

Min.: 3,500
Mult.: 3,500

Reel: 3,500

MF-USML

PCB Mount

SMD/SMT

3.8 A

12 V

7.6 A

50 A

20 mOhms

- 40 C

+ 85 C

Reel

Resettable Fuses - PPTC 6V 3.8A-HD 20A PTC

MF-USML380/6-2
Bourns
3,500: $0.574
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
MF-USML380/6-2

Mouser Part No
652-MF-USML380/6-2

Bourns

Resettable Fuses - PPTC 6V 3.8A-HD 20A PTC

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Reel

$0.574

$0.573

Min.: 3,500
Mult.: 3,500

Reel: 3,500

MF-USML6-2

SMD/SMT

3.8 A

6 V

8 A

50 A

16 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel

Resettable Fuses - PPTC 6V 5.0A-HD 20A PTC

MF-USML500/6-2
Bourns
3,500: $0.565
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
MF-USML500/6-2

Mouser Part No
652-MF-USML500/6-2

Bourns

Resettable Fuses - PPTC 6V 5.0A-HD 20A PTC

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Reel

$0.565

$0.547

Min.: 3,500
Mult.: 3,500

Reel: 3,500

MF-USML6-2

SMD/SMT

5 A

6 V

10 A

50 A

14.5 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel

Resettable Fuses - PPTC 6V 6.5A-HD 20A PTC

MF-USML650/6-2
Bourns
1: $1.22
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
MF-USML650/6-2

Mouser Part No
652-MF-USML650/6-2

Bourns

Resettable Fuses - PPTC 6V 6.5A-HD 20A PTC

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Cut Tape

$1.22

$1.12

$0.808

$0.766

View

Reel

$0.573

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,500

MF-USML6-2

SMD/SMT

6.5 A

6 VDC

13 A

50 A

9 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

MF-USML/X Low Ohmic PPTC Resettable Fuses

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