Resettable Fuses - PPTC – Mouser Denmark

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 23

Applied Filters:

Series

Mounting Style

Hold Current

Maximum Voltage

Trip Current

Resistance

Package/Case

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

MF-USML175/12-2
Bourns
1: 4,30 kr.
10.015In 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

10.015In Stock

Cut Tape

4,30 kr.

3,96 kr.

3,29 kr.

3,03 kr.

View

Reel

2,05 kr.

Min.: 1
Mult.: 1

: 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 12V 2.0A-HD 50A 1210

MF-USML200/12-2
Bourns
1: 4,56 kr.
5.060In 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

5.060In Stock

Cut Tape

4,56 kr.

4,00 kr.

3,81 kr.

3,03 kr.

View

Reel

2,09 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 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 5.0A-HD 50A 1210

MF-USML500/12-2
Bourns
1: 3,27 kr.
12.448In 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

12.448In Stock

Cut Tape

3,27 kr.

2,86 kr.

2,76 kr.

2,56 kr.

Reel

2,21 kr.

View

Min.: 1
Mult.: 1

: 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 1210 SMD Polymer PTC 5.5A/6V

MF-USML550/6-2
Bourns
1: 5,20 kr.
903In 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

903In Stock

Cut Tape

5,20 kr.

3,96 kr.

3,72 kr.

2,80 kr.

Reel

2,25 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 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 2.0A-HD 50A SMD

MF-USML200/6-2
Bourns
1: 5,20 kr.
3.170In 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

3.170In Stock

Cut Tape

5,20 kr.

3,96 kr.

3,72 kr.

2,80 kr.

View

Reel

1,82 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 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 4.5A-HD 50A 1210

MF-USML450/12-2
Bourns
1: 4,56 kr.
2.480In 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

2.480In Stock

Cut Tape

4,56 kr.

4,00 kr.

3,81 kr.

3,03 kr.

Reel

2,33 kr.

View

Min.: 1
Mult.: 1

: 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 4.5A-HD 20A PTC

MF-USML450/6-2
Bourns
1: 5,20 kr.
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

5,20 kr.

3,96 kr.

3,72 kr.

2,80 kr.

Reel

2,07 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 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 3.0A-HD 50A 1210

MF-USML300/12-2
Bourns
1: 4,56 kr.
18In Stock
10.500Expected 28/09/2026

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

18In Stock

10.500Expected 28/09/2026

Cut Tape

4,56 kr.

4,01 kr.

3,81 kr.

3,12 kr.

Reel

2,27 kr.

View

Min.: 1
Mult.: 1

: 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 3.0A-HD 50A SMD

MF-USML300/6-2
Bourns
1: 5,13 kr.
723In 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

723In Stock

Cut Tape

5,13 kr.

4,29 kr.

3,80 kr.

3,16 kr.

Reel

2,31 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 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: 4,56 kr.
2.982In 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

2.982In Stock

Cut Tape

4,56 kr.

4,01 kr.

3,81 kr.

3,30 kr.

Reel

2,54 kr.

View

Min.: 1
Mult.: 1

: 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: 5,20 kr.
535In 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

535In Stock

Cut Tape

5,20 kr.

3,96 kr.

3,72 kr.

2,80 kr.

Reel

2,37 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 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 5.5A-HD 50A 1210

MF-USML550/12-2
Bourns
1: 4,56 kr.
246In Stock
10.500Expected 13/10/2026

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

246In Stock

10.500Expected 13/10/2026

Cut Tape

4,56 kr.

4,01 kr.

3,81 kr.

3,30 kr.

View

Reel

2,68 kr.

Min.: 1
Mult.: 1

: 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 6V 6.0A-HD 20A PTC

MF-USML600/6-2
Bourns
1: 5,13 kr.
3.226In 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

3.226In Stock

Cut Tape

5,13 kr.

3,96 kr.

3,72 kr.

2,80 kr.

Reel

2,30 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 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: 4,88 kr.
3.846In 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

3.846In Stock

Cut Tape

4,88 kr.

4,33 kr.

3,89 kr.

3,19 kr.

View

Reel

2,30 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 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 6V 2.6A-HD 50A SMD

MF-USML260/6-2
Bourns
1: 5,20 kr.
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

5,20 kr.

3,96 kr.

3,72 kr.

2,80 kr.

View

Reel

2,26 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 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 1.75A-HD 50A SMD

MF-USML175/6-2
Bourns
10.000: 2,16 kr.
Non-Stocked Lead-Time 20 Weeks

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

Non-Stocked Lead-Time 20 Weeks

Cut Tape

2,16 kr.

Min.: 10.000
Mult.: 5.000

: 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

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

MF-USML260/12-2
Bourns
10.000: 2,89 kr.
Non-Stocked Lead-Time 20 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 20 Weeks

Cut Tape

2,89 kr.

Min.: 10.000
Mult.: 5.000

: 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

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

MF-USML350/12-2
Bourns
10.500: 2,85 kr.
Non-Stocked Lead-Time 20 Weeks

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

Non-Stocked Lead-Time 20 Weeks

Cut Tape

2,85 kr.

Min.: 10.500
Mult.: 3.500

: 3.500

MF-USML

PCB Mount

SMD/SMT

3.5 A

12 VDC

7 A

50 A

22 mOhms

- 40 C

+ 85 C

Reel

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

MF-USML350/6-2
Bourns
10.500: 2,19 kr.
Non-Stocked Lead-Time 20 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 20 Weeks

Cut Tape

2,19 kr.

Min.: 10.500
Mult.: 3.500

: 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

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

MF-USML380/12-2
Bourns
10.500: 2,36 kr.
Non-Stocked Lead-Time 20 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 20 Weeks

Cut Tape

2,36 kr.

Min.: 10.500
Mult.: 3.500

: 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
10.500: 2,37 kr.
Non-Stocked Lead-Time 20 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 20 Weeks

Cut Tape

2,37 kr.

Min.: 10.500
Mult.: 3.500

: 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
10.500: 2,37 kr.
Non-Stocked Lead-Time 20 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 20 Weeks

Cut Tape

2,37 kr.

Min.: 10.500
Mult.: 3.500

: 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
10.500: 2,37 kr.
Non-Stocked Lead-Time 26 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 26 Weeks

Cut Tape

2,37 kr.

Min.: 10.500
Mult.: 3.500

: 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

MF-USML/X Low Ohmic PPTC Resettable Fuses

Customer Service Office

Company

Resources

Support