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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) 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: $12.38 4,847In 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	4,847In Stock	$12.38 $11.28 $10.40 $9.17 View $8.11 $8.04 $7.69 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: $86.46 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	$86.46 $68.82 $63.79 $56.91 View $53.29 $52.34 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: $12.89 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	$12.89 $11.72 $8.24 $7.70 View $7.69 $7.50 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: $121.03 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	$121.03 $88.39 $82.81 $75.51 View $72.62 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: $15.91 4,534In Stock 3,200Expected 2026-12-21	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	4,534In Stock 3,200Expected 2026-12-21	$15.91 $15.29 $14.72 $11.32 View $9.62 $9.06 $8.08	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: $88.52 769In Stock 500Expected 2027-01-04	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	769In Stock 500Expected 2027-01-04	$88.52 $73.51 $67.98 $58.80 View $53.63 $52.46	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: $21.63 211In 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	211In Stock	$21.63 $18.86 $17.29 $14.93 View $12.66 $11.79 $11.22	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: $21.63 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	$21.63 $18.86 $17.29 $14.93 View $12.66 $11.79 $11.22	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: $24.44 420In Stock 915On Order	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	420In Stock 915On Order On Order Ship Dates Mfr. #: 0273.062V Stock: 420 Can Ship Immediately On Order: 360 Expected 2026-11-12 555 Expected 2026-11-26 Factory Lead-Time: 29 Weeks	$24.44 $21.72 $18.71 $18.17 View $16.10 $15.81	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: $15.58 949In Stock 3,400On Order	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	949In Stock 3,400On Order On Order Ship Dates Mfr. #: 0273.125H Stock: 949 Can Ship Immediately On Order: 1,400 Expected 2027-03-17 2,000 Expected 2027-07-12 Factory Lead-Time: 29 Weeks	$15.58 $15.21 $13.51 $11.40 View $9.37 $9.22 $8.80	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: $15.72 1,155In 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	1,155In Stock	$15.72 $15.11 $14.54 $11.19 View $9.50 $8.96 $7.98	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: $27.26 490In Stock 391On 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	490In Stock 391On Order On Order Ship Dates Mfr. #: 0273.600V Stock: 490 Can Ship Immediately On Order: 161 Expected 2026-10-23 230 Expected 2027-08-02 Factory Lead-Time: 29 Weeks	$27.26 $23.30 $21.51 $17.83 View $16.43 $16.42 $14.56	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: $15.81 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	$15.81 $13.91 $12.67 $10.64 View $9.71 $8.63 $8.25 $8.16	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: $92.91 159In Stock 35Expected 2026-12-21	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	159In Stock 35Expected 2026-12-21	$92.91 $77.13 $71.14 $63.19 $62.37	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: $26.67 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	$26.67 $24.06 $22.06 $19.05 View $16.04 $15.03 $14.31	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: $27.59 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	$27.59 $23.57 $21.74 $18.03 View $16.62 $15.90	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: $21.37 106In Stock 100Expected 2026-10-26	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 100Expected 2026-10-26	$21.37 $18.65 $17.09 $14.76 View $12.50 $11.65 $11.09	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: $21.30 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	$21.30 $17.68 $16.32 $13.52 View $12.66 $12.36	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: $29.39 69In 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	69In Stock	$29.39 $25.34 $22.88 $19.54 View $18.00 $17.99 $17.81 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 1A MICRO Very Fast Acting 0273001.H Littelfuse 1: $16.57 183In 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	183In Stock 2,200On Order On Order Ship Dates Mfr. #: 0273001.H Stock: 183 Can Ship Immediately On Order: 300 Expected 2026-11-12 800 Expected 2026-12-03 1,100 Expected 2026-12-21 Factory Lead-Time: 29 Weeks	$16.57 $13.77 $12.70 $10.58 View $9.71 $8.80	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: $26.97 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	$26.97 $24.34 $22.31 $19.27 View $16.23 $15.21 $14.47	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: $26.94 5In Stock 25Expected 2026-12-03	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 2026-12-03	$26.94 $23.49 $21.89 $20.28 $17.64	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: $16.57 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 2026-11-05 700 Expected 2026-11-19 1,100 Expected 2026-11-26 3,400 Expected 2026-12-03 Factory Lead-Time: 29 Weeks	$16.57 $13.81 $12.70 $10.89 View $9.40 $8.51	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: $26.67 5In Stock 65Expected 2026-12-03	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 2026-12-03	$26.67 $24.06 $22.06 $19.05 $16.04	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 1A MICRO Very Fast Acting 0274001.V Littelfuse 1: $37.51 3In Stock	Mfr. Part # 0274001.V Mouser Part # 576-0274001.V	Littelfuse	Fuses with Leads - Through Hole 125V 1A MICRO Very Fast Acting Learn More about Littelfuse micro tr3 fuses	Datasheet	3In Stock	$37.51 $31.12 $28.70 $23.79 View $21.92 $20.69	Min.: 1 Mult.: 1		274	Hi-Rel Fuses	1 A	125 VAC	Fast Blow	Leaded Fuses	125 VDC	10 kA	Radial	MICRO	- 55 C	+ 85 C	88 mOhms	Bulk