Fuses with Leads - Through Hole

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251/253 Series PICO® II Very Fast-Acting Fuses

Littelfuse 251/253 Series PICO^® II Very Fast-Acting Fuses are designed to meet an extensive array of performance characteristics in a space-saving subminiature package. These fast-acting fuses operate at -55°C to 125°C temperature range and at 0.062A to 15A current rating range. The 251/253 series fuses are small and feature low-temperature re-rating. These fuses are ideal for flat–panel display TVs, LCD monitors, LCD backlight inverters, office machines, power supplies, audio/video systems, lighting systems, and medical equipment.

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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	Product	Current Rating	Voltage Rating AC	Fuse Type	Body Style	Voltage Rating DC	Interrupt Rating	Termination Style	Fuse Size/Group	Minimum Operating Temperature	Maximum Operating Temperature	Resistance	Packaging
Fuses with Leads - Through Hole 125V .125A PICO II FA 0251.125NAT1L Littelfuse 1: $2.09 2,752In Stock	Mfr. Part No. 0251.125NAT1L Mouser Part No 576-0251.125NAT1L	Littelfuse	Fuses with Leads - Through Hole 125V .125A PICO II FA Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	2,752In Stock	$2.09 $1.82 $1.63 $1.35 View Reel $0.886 $1.21 $1.16 $1.01 $0.934 $0.886 $0.886	Min.: 1 Mult.: 1 : 5,000	251	PCB Mount Fuses	125 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC		Axial	PICO II			1.7 Ohms	Ammo Pack
Fuses with Leads - Through Hole 125V .125A 0251.125NRT1L Littelfuse 1: $1.85 5,391In Stock	Mfr. Part No. 0251.125NRT1L Mouser Part No 576-0251.125NRT1L	Littelfuse	Fuses with Leads - Through Hole 125V .125A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	5,391In Stock	Cut Tape $1.85 $1.71 $1.38 $1.26 View Reel $0.848 $1.14 $1.04 $0.956 $0.88 $0.848	Min.: 1 Mult.: 1 : 5,000	251	PCB Mount Fuses	125 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II	- 55 C	+ 125 C	1.7 Ohms	Reel, Cut Tape
Fuses with Leads - Through Hole 125V .2A 0251.200MXL Littelfuse 1: $1.79 3,024In Stock	Mfr. Part No. 0251.200MXL Mouser Part No 576-0251.200MXL	Littelfuse	Fuses with Leads - Through Hole 125V .2A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	3,024In Stock	$1.79 $1.59 $1.47 $1.22 View $1.12 $1.01 $0.906 $0.848	Min.: 1 Mult.: 1	251	PCB Mount Fuses	200 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC		Axial	PICO II			895 mOhms	Bulk
Fuses with Leads - Through Hole 125V .2A 0251.200NRT1L Littelfuse 1: $2.33 5,000In Stock	Mfr. Part No. 0251.200NRT1L Mouser Part No 576-0251.200NRT1L	Littelfuse	Fuses with Leads - Through Hole 125V .2A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	5,000In Stock	Cut Tape $2.33 $2.15 $1.79 $1.65 View Reel $1.17 $1.48 $1.37 $1.26 $1.17 $1.17	Min.: 1 Mult.: 1 : 5,000	251	PCB Mount Fuses	200 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II	- 55 C	+ 125 C	895 mOhms	Reel, Cut Tape
Fuses with Leads - Through Hole 125V .25A 0251.250MAT1L Littelfuse 1: $2.03 5,840In Stock	Mfr. Part No. 0251.250MAT1L Mouser Part No 576-0251.250MAT1L	Littelfuse	Fuses with Leads - Through Hole 125V .25A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	5,840In Stock	$2.03 $1.82 $1.66 $1.39 View Reel $0.886 $1.27 $1.16 $1.05 $0.886	Min.: 1 Mult.: 1 : 1,000	251	PCB Mount Fuses	250 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II	- 55 C	+ 125 C	665 mOhms	Ammo Pack
Fuses with Leads - Through Hole 125V .25A 0251.250MRT1L Littelfuse 1: $2.02 3,787In Stock	Mfr. Part No. 0251.250MRT1L Mouser Part No 576-0251.250MRT1L	Littelfuse	Fuses with Leads - Through Hole 125V .25A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	3,787In Stock	Cut Tape $2.02 $1.75 $1.64 $1.34 View Reel $0.886 $1.19 $1.11 $0.979 $0.886	Min.: 1 Mult.: 1 : 1,000	251	PCB Mount Fuses	250 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	50 A, 300 A	Axial	PICO II	- 55 C	+ 125 C	665 mOhms	Reel, Cut Tape
Fuses with Leads - Through Hole 125V .25A 0251.250MXL Littelfuse 1: $1.25 17,840In Stock	Mfr. Part No. 0251.250MXL Mouser Part No 576-0251.250MXL	Littelfuse	Fuses with Leads - Through Hole 125V .25A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	17,840In Stock	$1.25 $1.15 $0.954 $0.88 View $0.791 $0.729 $0.694	Min.: 1 Mult.: 1	251	PCB Mount Fuses	250 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II	- 55 C	+ 125 C	665 mOhms	Bulk
Fuses with Leads - Through Hole 125V .250A PICO II FA 0251.250NAT1L Littelfuse 1: $2.05 3,728In Stock	Mfr. Part No. 0251.250NAT1L Mouser Part No 576-0251.250NAT1L	Littelfuse	Fuses with Leads - Through Hole 125V .250A PICO II FA Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	3,728In Stock	$2.05 $1.82 $1.68 $1.39 View Reel $0.886 $1.27 $1.16 $1.05 $0.978 $0.886 $0.886	Min.: 1 Mult.: 1 : 5,000	251	PCB Mount Fuses	250 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II			665 mOhms	Ammo Pack
Fuses with Leads - Through Hole 125V .5A 0251.500MRT1L Littelfuse 1: $1.33 11,151In Stock 7,000Expected 03/02/2027	Mfr. Part No. 0251.500MRT1L Mouser Part No 576-0251.500MRT1L	Littelfuse	Fuses with Leads - Through Hole 125V .5A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	11,151In Stock 7,000Expected 03/02/2027	Cut Tape $1.33 $1.23 $1.02 $0.937 View Reel $0.627 $0.842 $0.776 $0.627	Min.: 1 Mult.: 1 : 1,000	251	PCB Mount Fuses	500 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	50 A, 300 A	Axial	PICO II	- 55 C	+ 125 C	280 mOhms	Reel, Cut Tape
Fuses with Leads - Through Hole 125V .5A 0251.500MXL Littelfuse 1: $1.14 5,612In Stock 5,000Expected 30/11/2026	Mfr. Part No. 0251.500MXL Mouser Part No 576-0251.500MXL	Littelfuse	Fuses with Leads - Through Hole 125V .5A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	5,612In Stock 5,000Expected 30/11/2026	$1.14 $1.05 $0.87 $0.762 View $0.721 $0.656 $0.627	Min.: 1 Mult.: 1	251	PCB Mount Fuses	500 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II	- 55 C	+ 125 C	280 mOhms	Bulk
Fuses with Leads - Through Hole 125V .500A PICO II FA 0251.500NAT1L Littelfuse 1: $1.42 5,843In Stock	Mfr. Part No. 0251.500NAT1L Mouser Part No 576-0251.500NAT1L	Littelfuse	Fuses with Leads - Through Hole 125V .500A PICO II FA Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	5,843In Stock	$1.42 $1.24 $1.15 $0.959 View Reel $0.642 $0.846 $0.797 $0.706 $0.654 $0.642 $0.642	Min.: 1 Mult.: 1 : 5,000	251	PCB Mount Fuses	500 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II			280 mOhms	Ammo Pack
Fuses with Leads - Through Hole 125V .5A 0251.500NRT1L Littelfuse 1: $1.32 2,481In Stock 5,000Expected 10/11/2026	Mfr. Part No. 0251.500NRT1L Mouser Part No 576-0251.500NRT1L	Littelfuse	Fuses with Leads - Through Hole 125V .5A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	2,481In Stock 5,000Expected 10/11/2026	Cut Tape $1.32 $1.22 $1.02 $0.932 View Reel $0.624 $0.838 $0.773 $0.712 $0.657 $0.624	Min.: 1 Mult.: 1 : 5,000	251	PCB Mount Fuses	500 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II			280 mOhms	Reel, Cut Tape
Fuses with Leads - Through Hole 125V .75A 0251.750MRT1L Littelfuse 1: $1.33 3,751In Stock	Mfr. Part No. 0251.750MRT1L Mouser Part No 576-0251.750MRT1L	Littelfuse	Fuses with Leads - Through Hole 125V .75A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	3,751In Stock	Cut Tape $1.33 $1.18 $0.979 $0.889 View Reel $0.627 $0.842 $0.776 $0.627	Min.: 1 Mult.: 1 : 1,000	251	PCB Mount Fuses	750 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	50 A, 300 A	Axial	PICO II	- 55 C	+ 125 C	175 mOhms	Reel, Cut Tape
Fuses with Leads - Through Hole 125V .75A 0251.750MXL Littelfuse 1: $1.14 2,671In Stock	Mfr. Part No. 0251.750MXL Mouser Part No 576-0251.750MXL	Littelfuse	Fuses with Leads - Through Hole 125V .75A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	2,671In Stock	$1.14 $1.05 $0.87 $0.803 View $0.722 $0.665 $0.627	Min.: 1 Mult.: 1	251	PCB Mount Fuses	750 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II	- 55 C	+ 125 C	175 mOhms	Bulk
Fuses with Leads - Through Hole 125V 1A 0251001.MAT1L Littelfuse 1: $1.35 24,907In Stock	Mfr. Part No. 0251001.MAT1L Mouser Part No 576-0251001.MAT1L	Littelfuse	Fuses with Leads - Through Hole 125V 1A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	24,907In Stock	$1.35 $1.15 $1.07 $0.882 View Reel $0.56 $0.787 $0.724 $0.652 $0.56	Min.: 1 Mult.: 1 : 1,000	251	PCB Mount Fuses	1 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II	- 55 C	+ 125 C	128 mOhms	Ammo Pack
Fuses with Leads - Through Hole 125V 1A 0251001.MRT1L Littelfuse 1: $1.20 11,941In Stock	Mfr. Part No. 0251001.MRT1L Mouser Part No 576-0251001.MRT1L	Littelfuse	Fuses with Leads - Through Hole 125V 1A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	11,941In Stock	Cut Tape $1.20 $1.11 $0.916 $0.845 View Reel $0.56 $0.759 $0.70 $0.56	Min.: 1 Mult.: 1 : 1,000	251	PCB Mount Fuses	1 A	125 VAC	Fast Blow	Leaded Fuses		50 A, 300 A	Axial	PICO II	- 55 C	+ 125 C	128 mOhms	Reel, Cut Tape
Fuses with Leads - Through Hole 125V 1A 0251001.MXL Littelfuse 1: $1.03 20,620In Stock 11,000Expected 15/12/2026	Mfr. Part No. 0251001.MXL Mouser Part No 576-0251001.MXL	Littelfuse	Fuses with Leads - Through Hole 125V 1A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	20,620In Stock 11,000Expected 15/12/2026	$1.03 $0.945 $0.785 $0.599 $0.56	Min.: 1 Mult.: 1	251	PCB Mount Fuses	1 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II	- 55 C	+ 125 C	128 mOhms	Bulk
Fuses with Leads - Through Hole 125V 1A 0251001.NRT1L Littelfuse 1: $1.19 10,066In Stock	Mfr. Part No. 0251001.NRT1L Mouser Part No 576-0251001.NRT1L	Littelfuse	Fuses with Leads - Through Hole 125V 1A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	10,066In Stock	Cut Tape $1.19 $1.10 $0.912 $0.841 View Reel $0.557 $0.756 $0.697 $0.643 $0.618 $0.557	Min.: 1 Mult.: 1 : 5,000	251	PCB Mount Fuses	1 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II	- 55 C	+ 125 C	128 mOhms	Reel, Cut Tape
Fuses with Leads - Through Hole 125V 2A 0251002.MRT1L Littelfuse 1: $1.11 25,392In Stock	Mfr. Part No. 0251002.MRT1L Mouser Part No 576-0251002.MRT1L	Littelfuse	Fuses with Leads - Through Hole 125V 2A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	25,392In Stock	Cut Tape $1.11 $0.988 $0.827 $0.764 View Reel $0.56 $0.694 $0.643 $0.56	Min.: 1 Mult.: 1 : 1,000	251	PCB Mount Fuses	2 A	125 VAC	Fast Blow	Leaded Fuses		50 A, 300 A	Axial	PICO II	- 55 C	+ 125 C	47.3 mOhms	Reel, Cut Tape
Fuses with Leads - Through Hole 2A 125V PICO II Fast Acting 0251002.MXL Littelfuse 1: $1.03 13,499In Stock 12,000Expected 22/03/2027	Mfr. Part No. 0251002.MXL Mouser Part No 576-0251002.MXL	Littelfuse	Fuses with Leads - Through Hole 2A 125V PICO II Fast Acting Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	13,499In Stock 12,000Expected 22/03/2027	$1.03 $0.945 $0.781 $0.711 View $0.651 $0.60 $0.56	Min.: 1 Mult.: 1	251	PCB Mount Fuses	2 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II	- 55 C	+ 125 C	47.3 mOhms	Bulk
Fuses with Leads - Through Hole 125V 2A 0251002.NRT1L Littelfuse 1: $1.19 9,122In Stock	Mfr. Part No. 0251002.NRT1L Mouser Part No 576-0251002.NRT1L	Littelfuse	Fuses with Leads - Through Hole 125V 2A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	9,122In Stock	Cut Tape $1.19 $1.10 $0.904 $0.797 View Reel $0.557 $0.721 $0.669 $0.62 $0.598 $0.557	Min.: 1 Mult.: 1 : 5,000	251	PCB Mount Fuses	2 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II	- 55 C	+ 125 C	47.3 mOhms	Reel, Cut Tape
Fuses with Leads - Through Hole 125V 3A 0251003.MRT1L Littelfuse 1: $1.20 17,065In Stock	Mfr. Part No. 0251003.MRT1L Mouser Part No 576-0251003.MRT1L	Littelfuse	Fuses with Leads - Through Hole 125V 3A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	17,065In Stock	Cut Tape $1.20 $1.11 $0.916 $0.845 Reel $0.57 View $0.759 $0.70 $0.56	Min.: 1 Mult.: 1 : 1,000	251	PCB Mount Fuses	3 A	125 VAC	Fast Blow	Leaded Fuses		50 A, 300 A	Axial	PICO II	- 55 C	+ 125 C	29 mOhms	Reel, Cut Tape
Fuses with Leads - Through Hole 3A 125V PICO II FAST 0251003.MXL Littelfuse 1: $1.24 22,351In Stock	Mfr. Part No. 0251003.MXL Mouser Part No 576-0251003.MXL	Littelfuse	Fuses with Leads - Through Hole 3A 125V PICO II FAST Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	22,351In Stock	$1.24 $1.03 $0.935 $0.776 View $0.70 $0.651 $0.60 $0.56	Min.: 1 Mult.: 1	251	PCB Mount Fuses	3 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II	- 55 C	+ 125 C	29 mOhms	Bulk
Fuses with Leads - Through Hole 125V 3A PICO II FA 0251003.NAT1L Littelfuse 1: $1.36 4,646In Stock	Mfr. Part No. 0251003.NAT1L Mouser Part No 576-0251003.NAT1L	Littelfuse	Fuses with Leads - Through Hole 125V 3A PICO II FA Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	4,646In Stock	$1.36 $1.18 $1.09 $0.902 View Reel $0.573 $0.794 $0.74 $0.658 $0.607 $0.573 $0.573	Min.: 1 Mult.: 1 : 5,000	251	PCB Mount Fuses	3 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II			29 mOhms	Ammo Pack
Fuses with Leads - Through Hole 125V 4A 0251004.MAT1L Littelfuse 1: $1.35 3,523In Stock	Mfr. Part No. 0251004.MAT1L Mouser Part No 576-0251004.MAT1L	Littelfuse	Fuses with Leads - Through Hole 125V 4A Learn More about Littelfuse 251 253 pico ii fuses	Datasheet	3,523In Stock	$1.35 $1.15 $1.07 $0.882 View Reel $0.56 $0.787 $0.724 $0.714 $0.56	Min.: 1 Mult.: 1 : 1,000	251	PCB Mount Fuses	4 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	300 A	Axial	PICO II	- 55 C	+ 125 C	20.4 mOhms	Ammo Pack