Fuses with Leads - Through Hole

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Micro™/TR3® Fuses

Littelfuse Micro™/TR3® Fuses offer a 0.002 to 5A operating current, 125V maximum voltage rating, and 10,000A interrupting rating. Littelfuse Micro/TR3 fuses include high-reliability, very fast-acting subminiature radial leaded fuses.

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RoHS Compliant

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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.	RoHS	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 3A MICRO Very Fast Acting 0273003.H Littelfuse 1: $10.30 4,867In Stock	Mfr. Part # 0273003.H Mouser Part # 576-0273003.H	Littelfuse	Fuses with Leads - Through Hole 125V 3A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	4,867In Stock	$10.30 $9.15 $8.32 $7.64 View $7.25 $6.94 Quote	Min.: 1 Mult.: 1		273	PCB Mount Fuses	3 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	27.5 mOhms	Bulk
Fuses with Leads - Through Hole 125V .015A MICRO Very Fast Acting 0272.015V Littelfuse 1: $77.06 63In Stock	Mfr. Part # 0272.015V Mouser Part # 576-0272.015V	Littelfuse	Fuses with Leads - Through Hole 125V .015A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	63In Stock	$77.06 $56.13 $52.47 $48.11 View $46.93 Quote	Min.: 1 Mult.: 1	No	272	PCB Mount Fuses	15 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 125 C	44 Ohms	Bulk
Fuses with Leads - Through Hole 125V 1.5A MICRO Very Fast Acting 027301.5H Littelfuse 1: $11.71 169In Stock	Mfr. Part # 027301.5H Mouser Part # 576-027301.5H	Littelfuse	Fuses with Leads - Through Hole 125V 1.5A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	169In Stock	$11.71 $10.67 $7.50 $6.96 View $6.94 $6.79 Quote	Min.: 1 Mult.: 1		273	PCB Mount Fuses	1.5 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	57.8 mOhms	Bulk
Fuses with Leads - Through Hole 125V .002A MICRO Very Fast Acting 0272.002V Littelfuse 1: $109.27 22In Stock	Mfr. Part # 0272.002V Mouser Part # 576-0272.002V	Littelfuse	Fuses with Leads - Through Hole 125V .002A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	22In Stock	$109.27 $80.24 $75.11 $68.22 View $65.56 Quote	Min.: 1 Mult.: 1	No	272	PCB Mount Fuses	2 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 125 C	2.2 kOhms	Bulk
Fuses with Leads - Through Hole 125V .05A MICRO Very Fast Acting 0273.050H Littelfuse 1: $14.21 4,905In Stock 3,200Expected 12/21/2026	Mfr. Part # 0273.050H Mouser Part # 576-0273.050H	Littelfuse	Fuses with Leads - Through Hole 125V .05A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	4,905In Stock 3,200Expected 12/21/2026	$14.21 $11.84 $10.93 $9.06 View $8.35 $8.03	Min.: 1 Mult.: 1		273	PCB Mount Fuses	50 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	3.52 Ohms	Bulk
Fuses with Leads - Through Hole 125V .031A MICRO Very Fast Acting 0273.031V Littelfuse 1: $78.22 434In Stock 185Expected 11/19/2026	Mfr. Part # 0273.031V Mouser Part # 576-0273.031V	Littelfuse	Fuses with Leads - Through Hole 125V .031A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	434In Stock 185Expected 11/19/2026	$78.22 $64.87 $59.84 $52.10	Min.: 1 Mult.: 1	No	273	PCB Mount Fuses	31 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	16 Ohms	Bulk
Fuses with Leads - Through Hole 125V 2A MICRO Very Fast Acting 0272002.H Littelfuse 1: $18.66 271In Stock	Mfr. Part # 0272002.H Mouser Part # 576-0272002.H	Littelfuse	Fuses with Leads - Through Hole 125V 2A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	271In Stock	$18.66 $15.96 $14.66 $12.21 $11.15	Min.: 1 Mult.: 1		272	PCB Mount Fuses	2 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 125 C	42.5 mOhms	Bulk
Fuses with Leads - Through Hole 125V 3A MICRO Very Fast Acting 0272003.H Littelfuse 1: $19.23 900In Stock	Mfr. Part # 0272003.H Mouser Part # 576-0272003.H	Littelfuse	Fuses with Leads - Through Hole 125V 3A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	900In Stock	$19.23 $15.96 $14.60 $12.21 View $11.25 $11.15	Min.: 1 Mult.: 1		272	PCB Mount Fuses	3 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 125 C	27.5 mOhms	Bulk
Fuses with Leads - Through Hole 125V .062A MICRO Very Fast Acting 0273.062V Littelfuse 1: $22.06 480In Stock 915Expected 11/12/2026	Mfr. Part # 0273.062V Mouser Part # 576-0273.062V	Littelfuse	Fuses with Leads - Through Hole 125V .062A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	480In Stock 915Expected 11/12/2026	$22.06 $19.60 $16.89 $16.41 View $14.53 $14.27	Min.: 1 Mult.: 1		273	PCB Mount Fuses	62 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	2.55 Ohms	Bulk
Fuses with Leads - Through Hole 125V .125A MICRO Very Fast Acting 0273.125H Littelfuse 1: $14.07 960In Stock 1,400Expected 3/31/2027	Mfr. Part # 0273.125H Mouser Part # 576-0273.125H	Littelfuse	Fuses with Leads - Through Hole 125V .125A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	960In Stock 1,400Expected 3/31/2027	$14.07 $13.73 $12.19 $10.30 View $8.46 $8.32 $7.94	Min.: 1 Mult.: 1		273	PCB Mount Fuses	125 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	1 Ohms	Bulk
Fuses with Leads - Through Hole 125V .25A MICRO Very Fast Acting 0273.250H Littelfuse 1: $13.72 1,198In Stock	Mfr. Part # 0273.250H Mouser Part # 576-0273.250H	Littelfuse	Fuses with Leads - Through Hole 125V .25A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	1,198In Stock	$13.72 $11.71 $10.82 $8.97 View $8.07 $7.94	Min.: 1 Mult.: 1		273	PCB Mount Fuses	250 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	1.75 Ohms	Bulk
Fuses with Leads - Through Hole 125V 2A MICRO Very Fast Acting 0273002.H Littelfuse 1: $14.12 496In Stock 3,300On Order	Mfr. Part # 0273002.H Mouser Part # 576-0273002.H	Littelfuse	Fuses with Leads - Through Hole 125V 2A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	496In Stock 3,300On Order On Order Ship Dates Mfr. #: 0273002.H Stock: 496 Can Ship Immediately On Order: 2,000 Expected 11/5/2026 1,300 Expected 12/3/2026 Factory Lead-Time: 29 Weeks	$14.12 $12.18 $11.17 $9.56 View $8.27 $7.94	Min.: 1 Mult.: 1		273	PCB Mount Fuses	2 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	42.5 mOhms	Bulk
Fuses with Leads - Through Hole 125V .005A MICRO Very Fast Acting 0273.005V Littelfuse 1: $83.88 115In Stock 70Expected 7/21/2027	Mfr. Part # 0273.005V Mouser Part # 576-0273.005V	Littelfuse	Fuses with Leads - Through Hole 125V .005A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	115In Stock 70Expected 7/21/2027	$83.88 $69.63 $64.22 $57.04 $56.30	Min.: 1 Mult.: 1	No	273	PCB Mount Fuses	5 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	280 Ohms	Bulk
Fuses with Leads - Through Hole 125V .062A MICRO Very Fast Acting 0272.062V Littelfuse 1: $24.91 11In Stock	Mfr. Part # 0272.062V Mouser Part # 576-0272.062V	Littelfuse	Fuses with Leads - Through Hole 125V .062A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	11In Stock	$24.91 $21.28 $19.63 $16.28 View $15.00 $14.35	Min.: 1 Mult.: 1		272	PCB Mount Fuses	62 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 125 C	2.55 Ohms	Bulk
Fuses with Leads - Through Hole 125V .1A MICRO Very Fast Acting 0272.100H Littelfuse 1: $19.03 106In Stock	Mfr. Part # 0272.100H Mouser Part # 576-0272.100H	Littelfuse	Fuses with Leads - Through Hole 125V .1A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	106In Stock	$19.03 $15.80 $14.57 $13.34 View $11.28 $11.02	Min.: 1 Mult.: 1		272	PCB Mount Fuses	100 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 125 C	1.38 Ohms	Bulk
Fuses with Leads - Through Hole 125V 1.5A MICRO Very Fast Acting 027201.5H Littelfuse 1: $19.23 129In Stock	Mfr. Part # 027201.5H Mouser Part # 576-027201.5H	Littelfuse	Fuses with Leads - Through Hole 125V 1.5A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	129In Stock	$19.23 $15.96 $14.73 $12.21 View $11.43 $11.15	Min.: 1 Mult.: 1		272	PCB Mount Fuses	1.5 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 125 C	57.8 mOhms	Bulk
Fuses with Leads - Through Hole 125V .2A MICRO Very Fast Acting 0273.200V Littelfuse 1: $26.18 74In Stock	Mfr. Part # 0273.200V Mouser Part # 576-0273.200V	Littelfuse	Fuses with Leads - Through Hole 125V .2A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	74In Stock	$26.18 $22.59 $20.38 $17.64 View $16.25 $16.24 $16.06 Quote	Min.: 1 Mult.: 1		273	PCB Mount Fuses	200 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	2.3 Ohms	Bulk
Fuses with Leads - Through Hole 125V V/FA MICRO .500A 0273.500V Littelfuse 1: $23.80 10In Stock 50Expected 12/3/2026	Mfr. Part # 0273.500V Mouser Part # 576-0273.500V	Littelfuse	Fuses with Leads - Through Hole 125V V/FA MICRO .500A Learn More about Littelfuse micro tr3 fuses	Datasheet	10In Stock 50Expected 12/3/2026	$23.80 $20.53 $15.70 $14.73	Min.: 1 Mult.: 1		273	PCB Mount Fuses	500 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	167 mOhms	Bulk
Fuses with Leads - Through Hole 125V .6A MICRO Very Fast Acting 0273.600V Littelfuse 1: $25.36 14In Stock 650On Order	Mfr. Part # 0273.600V Mouser Part # 576-0273.600V	Littelfuse	Fuses with Leads - Through Hole 125V .6A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	14In Stock 650On Order On Order Ship Dates Mfr. #: 0273.600V Stock: 14 Can Ship Immediately On Order: 465 Expected 10/5/2026 185 Expected 10/29/2026 Factory Lead-Time: 29 Weeks	$25.36 $21.39 $19.66 $16.68 $15.56	Min.: 1 Mult.: 1		273	PCB Mount Fuses	600 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	430 mOhms	Bulk
Fuses with Leads - Through Hole 125V .75A MICRO Very Fast Acting 0273.750H Littelfuse 1: $15.13 9In Stock 300Expected 11/5/2026	Mfr. Part # 0273.750H Mouser Part # 576-0273.750H	Littelfuse	Fuses with Leads - Through Hole 125V .75A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	9In Stock 300Expected 11/5/2026	$15.13 $12.60 $11.35 $9.39 View $8.76 $8.03	Min.: 1 Mult.: 1		273	PCB Mount Fuses	750 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	293 mOhms	Bulk
Fuses with Leads - Through Hole 125V 1A MICRO Very Fast Acting 0273001.H Littelfuse 1: $14.96 194In Stock 2,200On Order	Mfr. Part # 0273001.H Mouser Part # 576-0273001.H	Littelfuse	Fuses with Leads - Through Hole 125V 1A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	194In Stock 2,200On Order On Order Ship Dates Mfr. #: 0273001.H Stock: 194 Can Ship Immediately On Order: 300 Expected 10/29/2026 800 Expected 12/3/2026 1,100 Expected 12/21/2026 Factory Lead-Time: 29 Weeks	$14.96 $12.43 $11.47 $9.53 View $8.76 $7.94	Min.: 1 Mult.: 1		273	PCB Mount Fuses	1 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	88 mOhms	Bulk
Fuses with Leads - Through Hole 125V V/FA MICRO 1A 0273001.V Littelfuse 1: $22.80 43In Stock	Mfr. Part # 0273001.V Mouser Part # 576-0273001.V	Littelfuse	Fuses with Leads - Through Hole 125V V/FA MICRO 1A Learn More about Littelfuse micro tr3 fuses	Datasheet	43In Stock	$22.80 $20.06 $15.38 $14.38	Min.: 1 Mult.: 1		273	PCB Mount Fuses	1 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	88 mOhms	Bulk
Fuses with Leads - Through Hole 125V V/FA MICRO 3A 0273003.V Littelfuse 1: $24.32 5In Stock 25Expected 4/7/2027	Mfr. Part # 0273003.V Mouser Part # 576-0273003.V	Littelfuse	Fuses with Leads - Through Hole 125V V/FA MICRO 3A Learn More about Littelfuse micro tr3 fuses	Datasheet	5In Stock 25Expected 4/7/2027	$24.32 $21.20 $19.76 $18.30 $15.93	Min.: 1 Mult.: 1		273	PCB Mount Fuses	3 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	27.5 mOhms	Bulk
Fuses with Leads - Through Hole 125V 4A MICRO Very Fast Acting 0273004.H Littelfuse 1: $14.96 7In Stock 500Expected 12/14/2026	Mfr. Part # 0273004.H Mouser Part # 576-0273004.H	Littelfuse	Fuses with Leads - Through Hole 125V 4A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	7In Stock 500Expected 12/14/2026	$14.96 $13.29 $12.16 $9.84 View $8.66 $8.15	Min.: 1 Mult.: 1		273	PCB Mount Fuses	4 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	20.2 mOhms	Bulk
Fuses with Leads - Through Hole 125V 5A MICRO Very Fast Acting 0273005.H Littelfuse 1: $14.96 24In Stock 6,000On Order	Mfr. Part # 0273005.H Mouser Part # 576-0273005.H	Littelfuse	Fuses with Leads - Through Hole 125V 5A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	24In Stock 6,000On Order On Order Ship Dates Mfr. #: 0273005.H Stock: 24 Can Ship Immediately On Order: 800 Expected 11/5/2026 1,100 Expected 11/12/2026 700 Expected 11/19/2026 3,400 Expected 12/14/2026 Factory Lead-Time: 29 Weeks	$14.96 $12.43 $11.47 $9.59 View $8.32 $7.94	Min.: 1 Mult.: 1		273	PCB Mount Fuses	5 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	280 Ohms	Bulk