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 (CLP) 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: $10.231 4.827In 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	4.827In Stock	$10.231 $9.069 $8.328 $7.246 View $6.482 $6.357 $6.084	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 3A MICRO Very Fast Acting 0272003.H Littelfuse 1: $16.850 890In 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	890In Stock	$16.850 $13.990 $11.142 $9.798 View $8.545 $8.328 Quote	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 .05A MICRO Very Fast Acting 0273.050H Littelfuse 1: $12.509 4.166In Stock 3.200Expected 1/18/2027	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	4.166In Stock 3.200Expected 1/18/2027	$12.509 $10.379 $9.581 $7.941 View $7.314 $6.437 $6.163	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 .062A MICRO Very Fast Acting 0273.062V Littelfuse 1: $20.974 1.335In Stock	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	1.335In Stock	$20.974 $17.499 $17.180 $16.052 View $14.799 $13.273 $13.124 $12.623 Quote	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 .031A MICRO Very Fast Acting 0273.031V Littelfuse 1: $70.031 712In Stock 500Expected 1/4/2027	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	712In Stock 500Expected 1/4/2027	$70.031 $58.160 $53.785 $46.517 View $42.427 $41.504	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 .1A MICRO Very Fast Acting 0272.100H Littelfuse 1: $16.907 206In 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	206In Stock	$16.907 $14.754 $13.523 $11.678 View $9.889 $9.217 $8.772	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 2A MICRO Very Fast Acting 0272002.H Littelfuse 1: $16.850 211In Stock 200Expected 5/10/2027	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	211In Stock 200Expected 5/10/2027	$16.850 $13.990 $12.908 $12.156 View $10.664 $8.647 $8.545	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 .1A MICRO Very Fast Acting 0273.100H Littelfuse 1: $14.788 1.545In Stock 800Expected 11/26/2026	Mfr. Part # 0273.100H Mouser Part # 576-0273.100H	Littelfuse	Fuses with Leads - Through Hole 125V .1A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	1.545In Stock 800Expected 11/26/2026	$14.788 $11.917 $11.154 $10.174 View $9.114 $7.702	Min.: 1 Mult.: 1		273	PCB Mount Fuses	100 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	1.38 Ohms	Bulk
Fuses with Leads - Through Hole 125V .125A MICRO Very Fast Acting 0273.125H Littelfuse 1: $13.580 915In Stock 3.400Expected 3/17/2027	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	915In Stock 3.400Expected 3/17/2027	$13.580 $12.327 $11.370 $9.433 View $8.442 $7.622 $7.291 $6.961	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: $12.373 752In 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	752In Stock	$12.373 $10.265 $9.479 $7.861 View $7.234 $6.369 $6.357 Quote	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 .6A MICRO Very Fast Acting 0273.600V Littelfuse 1: $22.227 596In Stock 230Expected 1/7/2027	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	596In Stock 230Expected 1/7/2027	$22.227 $18.433 $17.021 $14.104 View $12.999 $12.988 $11.518	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: $13.261 318In Stock	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	318In Stock	$13.261 $11.005 $10.151 $8.419 View $7.747 $6.824 $6.517 Quote	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 .005A MICRO Very Fast Acting 0273.005V Littelfuse 1: $73.506 155In Stock 35Expected 12/21/2026	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	155In Stock 35Expected 12/21/2026	$73.506 $61.020 $56.280 $49.991 $49.342	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 .05A MICRO Very Fast Acting 0272.050V Littelfuse 1: $22.296 40In Stock	Mfr. Part # 0272.050V Mouser Part # 576-0272.050V	Littelfuse	Fuses with Leads - Through Hole 125V .05A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	40In Stock	$22.296 $18.490 $17.066 $14.150 View $13.045 $11.689 $11.552	Min.: 1 Mult.: 1		272	PCB Mount Fuses	50 mA	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 125 C	3.52 Ohms	Bulk
Fuses with Leads - Through Hole 125V .062A MICRO Very Fast Acting 0272.062V Littelfuse 1: $21.829 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	$21.829 $18.650 $17.203 $14.264 View $13.147 $12.578	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 1.5A MICRO Very Fast Acting 027201.5H Littelfuse 1: $16.850 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	$16.850 $13.990 $12.908 $10.698 View $10.014 $9.775	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: $23.253 5In Stock 55Expected 5/17/2027	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	5In Stock 55Expected 5/17/2027	$23.253 $19.709 $18.650 $15.460 View $14.241 $14.230	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: $21.703 4In Stock	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	4In Stock	$21.703 $18.001 $16.360 $13.762 $12.908	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 1A MICRO Very Fast Acting 0273001.H Littelfuse 1: $12.316 154In 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	154In Stock 2.200On Order On Order Ship Dates Mfr. #: 0273001.H Stock: 154 Can Ship Immediately On Order: 1.900 Expected 12/21/2026 300 Expected 3/15/2027 Factory Lead-Time: 29 Weeks	$12.316 $10.789 $9.467 $8.328 View $7.496 $6.961	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: $21.339 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	$21.339 $19.254 $17.647 $15.244 View $12.840 $12.031 $11.450	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 2A MICRO Very Fast Acting 0273002.H Littelfuse 1: $13.113 24In Stock 8.000On 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	24In Stock 8.000On Order On Order Ship Dates Mfr. #: 0273002.H Stock: 24 Can Ship Immediately On Order: 1.800 Expected 12/3/2026 1.300 Expected 12/24/2026 1.900 Expected 12/31/2026 3.000 Expected 3/4/2027 Factory Lead-Time: 29 Weeks	$13.113 $11.632 $10.048 $7.964 View $7.109 $6.961	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 V/FA MICRO 3A 0273003.V Littelfuse 1: $23.275 5In Stock 25Expected 12/3/2026	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 12/3/2026	$23.275 $19.755 $17.317 $16.519 $14.207	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 5A MICRO Very Fast Acting 0273005.H Littelfuse 1: $13.124 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 11/9/2026 700 Expected 12/21/2026 1.100 Expected 12/24/2026 3.400 Expected 3/4/2027 Factory Lead-Time: 29 Weeks	$13.124 $11.154 $10.105 $8.807 View $7.758 $6.722	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
Fuses with Leads - Through Hole 125V V/FA MICRO 5A 0273005.V Littelfuse 1: $23.424 5In Stock 65Expected 12/3/2026	Mfr. Part # 0273005.V Mouser Part # 576-0273005.V	Littelfuse	Fuses with Leads - Through Hole 125V V/FA MICRO 5A Learn More about Littelfuse micro tr3 fuses	Datasheet	5In Stock 65Expected 12/3/2026	$23.424 $20.928 $19.368 $14.594 $12.304	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
Fuses with Leads - Through Hole 125V 1.5A MICRO Very Fast Acting 027301.5H Littelfuse 1: $12.373 119In 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	119In Stock	$12.373 $10.265 $9.479 $7.861 View $7.234 $6.961	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