Resettable Fuses - PPTC – Mouser Korea, Republic of

.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 5.0A-HD 50A 1210

MF-USML500/12-2
Bourns
1: ₩858
12,611In Stock

Mfr. Part #
MF-USML500/12-2

Mouser Part #
652-MF-USML500/12-2

Bourns

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

Learn More

Datasheet

12,611In Stock

Cut Tape

₩858

₩762.8

₩733.2

₩653.6

Reel

₩536.6

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 12V 1.75A-HD 50A 1210

MF-USML175/12-2
Bourns
1: ₩873.6
10,327In Stock

Mfr. Part #
MF-USML175/12-2

Mouser Part #
652-MF-USML175/12-2

Bourns

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

Learn More

Datasheet

10,327In Stock

Cut Tape

₩873.6

₩770.6

₩733.2

₩698.9

View

Reel

₩541.3

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 1210 SMD Polymer PTC 5.5A/6V

MF-USML550/6-2
Bourns
1: ₩1,560
903In Stock

Mfr. Part #
MF-USML550/6-2

Mouser Part #
652-MF-USML550/6-2

Bourns

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

Learn More

Datasheet

903In Stock

Cut Tape

₩1,560

₩1,180.9

₩893.9

₩865.8

Reel

₩630.2

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 12V 4.5A-HD 50A 1210

MF-USML450/12-2
Bourns
1: ₩1,107.6
2,585In Stock

Mfr. Part #
MF-USML450/12-2

Mouser Part #
652-MF-USML450/12-2

Bourns

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

Learn More

Datasheet

2,585In Stock

Cut Tape

₩1,107.6

₩973.4

₩926.6

₩736.3

Reel

₩597.5

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 2.0A-HD 50A SMD

MF-USML200/6-2
Bourns
1: ₩1,263.6
3,170In Stock

Mfr. Part #
MF-USML200/6-2

Mouser Part #
652-MF-USML200/6-2

Bourns

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

Learn More

Datasheet

3,170In Stock

Cut Tape

₩1,263.6

₩962.5

₩903.2

₩681.7

View

Reel

₩443

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 6V 4.5A-HD 20A PTC

MF-USML450/6-2
Bourns
1: ₩1,263.6
3,291In Stock

Mfr. Part #
MF-USML450/6-2

Mouser Part #
652-MF-USML450/6-2

Bourns

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

Learn More

Datasheet

3,291In Stock

Cut Tape

₩1,263.6

₩962.5

₩903.2

₩681.7

Reel

₩497.6

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 2.0A-HD 50A 1210

MF-USML200/12-2
Bourns
1: ₩1,107.6
5,097In Stock

Mfr. Part #
MF-USML200/12-2

Mouser Part #
652-MF-USML200/12-2

Bourns

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

Learn More

Datasheet

5,097In Stock

Cut Tape

₩1,107.6

₩973.4

₩926.6

₩736.3

₩719.2

Reel

₩719.2

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 3.0A-HD 50A 1210

MF-USML300/12-2
Bourns
1: ₩1,107.6
24In Stock
10,500Expected 10/6/2026

Mfr. Part #
MF-USML300/12-2

Mouser Part #
652-MF-USML300/12-2

Bourns

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

Learn More

Datasheet

24In Stock

10,500Expected 10/6/2026

Cut Tape

₩1,107.6

₩973.4

₩926.6

₩801.8

Reel

₩553.8

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: ₩1,248
723In Stock

Mfr. Part #
MF-USML300/6-2

Mouser Part #
652-MF-USML300/6-2

Bourns

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

Learn More

Datasheet

723In Stock

Cut Tape

₩1,248

₩962.5

₩903.2

₩681.7

Reel

₩560

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: ₩1,341.6
2,992In Stock

Mfr. Part #
MF-USML400/12-2

Mouser Part #
652-MF-USML400/12-2

Bourns

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

Learn More

Datasheet

2,992In Stock

Cut Tape

₩1,341.6

₩1,039

₩973.4

₩734.8

Reel

₩535.1

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: ₩1,248
535In Stock

Mfr. Part #
MF-USML400/6-2

Mouser Part #
652-MF-USML400/6-2

Bourns

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

Learn More

Datasheet

535In Stock

Cut Tape

₩1,248

₩1,053

₩926.6

₩780

Reel

₩577.2

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: ₩1,107.6
746In Stock
10,500Expected 10/20/2026

Mfr. Part #
MF-USML550/12-2

Mouser Part #
652-MF-USML550/12-2

Bourns

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

Learn More

Datasheet

746In Stock

10,500Expected 10/20/2026

Cut Tape

₩1,107.6

₩973.4

₩926.6

₩803.4

Reel

₩653.6

View

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: ₩1,248
3,256In Stock

Mfr. Part #
MF-USML600/6-2

Mouser Part #
652-MF-USML600/6-2

Bourns

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

Learn More

Datasheet

3,256In Stock

Cut Tape

₩1,248

₩962.5

₩903.2

₩681.7

Reel

₩558.5

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: ₩1,248
3,856In Stock

Mfr. Part #
MF-USML700/6-2

Mouser Part #
652-MF-USML700/6-2

Bourns

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

Learn More

Datasheet

3,856In Stock

Cut Tape

₩1,248

₩962.5

₩903.2

₩681.7

View

Reel

₩558.5

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 1.75A-HD 50A SMD

MF-USML175/6-2
Bourns
1: ₩1,263.6
123In Stock

Mfr. Part #
MF-USML175/6-2

Mouser Part #
652-MF-USML175/6-2

Bourns

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

Learn More

Datasheet

123In Stock

Cut Tape

₩1,263.6

₩962.5

₩903.2

₩681.7

View

Reel

₩524.2

MouseReel Available

Min.: 1
Mult.: 1

: 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 6V 2.6A-HD 50A SMD

MF-USML260/6-2
Bourns
1: ₩1,263.6
1,656In Stock

Mfr. Part #
MF-USML260/6-2

Mouser Part #
652-MF-USML260/6-2

Bourns

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

Learn More

Datasheet

1,656In Stock

Cut Tape

₩1,263.6

₩962.5

₩903.2

₩897

₩549.1

Reel

₩549.1

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 12V 2.6A-HD 50A 1210

MF-USML260/12-2
Bourns
10,000: ₩663
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
MF-USML260/12-2

Mouser Part #
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

₩663

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: ₩692.6
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
MF-USML350/12-2

Mouser Part #
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

₩692.6

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: ₩530.4
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
MF-USML350/6-2

Mouser Part #
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

₩530.4

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: ₩550.7
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
MF-USML380/12-2

Mouser Part #
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

₩550.7

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: ₩566.3
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
MF-USML380/6-2

Mouser Part #
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

₩566.3

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: ₩566.3
Non-Stocked Lead-Time 20 Weeks

Mfr. Part #
MF-USML500/6-2

Mouser Part #
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

₩566.3

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: ₩577.2
Non-Stocked Lead-Time 26 Weeks

Mfr. Part #
MF-USML650/6-2

Mouser Part #
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

₩577.2

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