Resettable Fuses - PPTC – Mouser Vietnam

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Mounting Style	Termination Style	Hold Current	Maximum Voltage	Trip Current	Current Rating - Max	Resistance	Package / Case	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Resettable Fuses - PPTC 12V 2.0A-HD 50A 1210 MF-USML200/12-2 Bourns 1: $0.71 5,003In 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 about Bourns mf usml x fuses	Datasheet	5,003In Stock	Cut Tape $0.71 $0.624 $0.544 $0.472 View Reel $0.325 $0.424 $0.391 $0.361 $0.334 $0.325 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 4.5A-HD 50A 1210 MF-USML450/12-2 Bourns 1: $0.71 2,285In 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 about Bourns mf usml x fuses	Datasheet	2,285In Stock	Cut Tape $0.71 $0.624 $0.544 $0.472 Reel $0.385 View $0.429 $0.40 $0.385 $0.289	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: $0.76 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 about Bourns mf usml x fuses	Datasheet	3,170In Stock	Cut Tape $0.76 $0.598 $0.504 $0.443 View Reel $0.279 $0.398 $0.367 $0.339 $0.312 $0.279 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	MF-USML6-2	SMD/SMT	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 1210 SMD Polymer PTC 5.5A/6V MF-USML550/6-2 Bourns 1: $0.81 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 about Bourns mf usml x fuses	Datasheet	903In Stock	Cut Tape $0.81 $0.617 $0.579 $0.437 Reel $0.328 View $0.407 $0.38 $0.333 $0.293 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	MF-USML6-2	SMD/SMT	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 6.0A-HD 20A PTC MF-USML600/6-2 Bourns 1: $0.76 3,226In 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 about Bourns mf usml x fuses	Datasheet	3,226In Stock	Cut Tape $0.76 $0.598 $0.504 $0.443 Reel $0.312 View $0.398 $0.367 $0.339 $0.279 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 4.5A-HD 20A PTC MF-USML450/6-2 Bourns 1: $0.76 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 about Bourns mf usml x fuses	Datasheet	3,291In Stock	Cut Tape $0.76 $0.598 $0.504 $0.443 Reel $0.312 View $0.398 $0.367 $0.339 $0.279 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	MF-USML6-2	SMD/SMT	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 1.75A-HD 50A 1210 MF-USML175/12-2 Bourns 1: $0.67 4,989In 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 about Bourns mf usml x fuses	Datasheet	4,989In Stock	Cut Tape $0.67 $0.618 $0.513 $0.472 View Reel $0.346 $0.426 $0.393 $0.359 $0.357 $0.346	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 5.5A-HD 50A 1210 MF-USML550/12-2 Bourns 1: $0.89 10,736In Stock	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 about Bourns mf usml x fuses	Datasheet	10,736In Stock	Cut Tape $0.89 $0.686 $0.644 $0.486 Reel $0.375 View $0.452 $0.423 $0.375 $0.314	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 3.0A-HD 50A SMD MF-USML300/6-2 Bourns 1: $0.80 146In Stock 10,500Expected 1/5/2027	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 about Bourns mf usml x fuses	Datasheet	146In Stock 10,500Expected 1/5/2027	Cut Tape $0.80 $0.669 $0.592 $0.493 Reel $0.366 View $0.45 $0.418 $0.376 $0.34 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	MF-USML6-2	SMD/SMT	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: $0.71 2,962In 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 about Bourns mf usml x fuses	Datasheet	2,962In Stock	Cut Tape $0.71 $0.624 $0.594 $0.514 View Reel $0.395 $0.496 $0.456 $0.413 $0.395	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: $0.80 530In 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 about Bourns mf usml x fuses	Datasheet	530In Stock	Cut Tape $0.80 $0.678 $0.567 $0.509 Reel $0.37 View $0.457 $0.422 $0.389 $0.361 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	MF-USML6-2	SMD/SMT	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: $0.58 4,367In 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 about Bourns mf usml x fuses	Datasheet	4,367In Stock	Cut Tape $0.58 $0.512 $0.466 $0.431 View Reel $0.375 $0.414 $0.386 $0.375 $0.375	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 6V 7.0A-HD 20A PTC MF-USML700/6-2 Bourns 1: $0.74 3,756In 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 about Bourns mf usml x fuses	Datasheet	3,756In Stock	Cut Tape $0.74 $0.616 $0.519 $0.456 Reel $0.358 View $0.41 $0.378 $0.358 $0.321 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	MF-USML6-2	SMD/SMT	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: $0.81 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 about Bourns mf usml x fuses	Datasheet	1,656In Stock	Cut Tape $0.81 $0.617 $0.579 $0.437 View Reel $0.318 $0.407 $0.38 $0.358 $0.319 $0.318 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	MF-USML6-2	SMD/SMT	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 3.0A-HD 50A 1210 MF-USML300/12-2 Bourns 1: $0.75 10,484On Order	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 about Bourns mf usml x fuses	Datasheet	10,484On Order	Cut Tape $0.75 $0.664 $0.556 $0.496 Reel $0.307 View $0.418 $0.391 $0.372 $0.29	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 1.75A-HD 50A SMD MF-USML175/6-2 Bourns 10,000: $0.365 Non-Stocked Lead-Time 20 Weeks	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 about Bourns mf usml x fuses	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape $0.365	Min.: 10,000 Mult.: 5,000 : 5,000	MF-USML6-2	SMD/SMT	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: $0.451 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 about Bourns mf usml x fuses	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape $0.451	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: $0.444 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 about Bourns mf usml x fuses	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape $0.444	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: $0.341 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 about Bourns mf usml x fuses	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape $0.341	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: $0.365 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 about Bourns mf usml x fuses	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape $0.365	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: $0.385 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 about Bourns mf usml x fuses	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape $0.385	Min.: 10,500 Mult.: 3,500 : 3,500	MF-USML6-2	SMD/SMT	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: $0.385 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 about Bourns mf usml x fuses	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape $0.385	Min.: 10,500 Mult.: 3,500 : 3,500	MF-USML6-2	SMD/SMT	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: $0.35 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 about Bourns mf usml x fuses	Datasheet	Non-Stocked Lead-Time 26 Weeks	Cut Tape $0.35	Min.: 10,500 Mult.: 3,500 : 3,500	MF-USML6-2	SMD/SMT	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

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