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. 

Results: 126
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Description Datasheet Availability Pricing (CLP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model 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
Littelfuse Fuses with Leads - Through Hole 125V 3A MICRO Very Fast Acting
Datasheet
4.917In Stock
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
Littelfuse Fuses with Leads - Through Hole 125V .015A MICRO Very Fast Acting
Datasheet
63In Stock
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
Littelfuse Fuses with Leads - Through Hole 125V 1.5A MICRO Very Fast Acting
Datasheet
169In Stock
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
Littelfuse Fuses with Leads - Through Hole 125V .002A MICRO Very Fast Acting
Datasheet
22In Stock
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
Littelfuse Fuses with Leads - Through Hole 125V .05A MICRO Very Fast Acting
Datasheet
5.205In Stock
3.200Expected 3/15/2027
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
Littelfuse Fuses with Leads - Through Hole 125V .031A MICRO Very Fast Acting
Datasheet
584In Stock
185Expected 10/22/2026
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
Littelfuse Fuses with Leads - Through Hole 125V 2A MICRO Very Fast Acting
Datasheet
275In Stock
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
Littelfuse Fuses with Leads - Through Hole 125V 3A MICRO Very Fast Acting
Datasheet
900In Stock
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
Littelfuse Fuses with Leads - Through Hole 125V .062A MICRO Very Fast Acting
Datasheet
480In Stock
915On Order
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
Littelfuse Fuses with Leads - Through Hole 125V .125A MICRO Very Fast Acting
Datasheet
960In Stock
1.400Expected 6/23/2027
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
Littelfuse Fuses with Leads - Through Hole 125V .25A MICRO Very Fast Acting
Datasheet
1.198In Stock
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
Littelfuse Fuses with Leads - Through Hole 125V 2A MICRO Very Fast Acting
Datasheet
496In Stock
3.300On Order
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
Littelfuse Fuses with Leads - Through Hole 125V .005A MICRO Very Fast Acting
Datasheet
115In Stock
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
Littelfuse Fuses with Leads - Through Hole 125V .062A MICRO Very Fast Acting
Datasheet
11In Stock
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
Littelfuse Fuses with Leads - Through Hole 125V .1A MICRO Very Fast Acting
Datasheet
141In Stock
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
Littelfuse Fuses with Leads - Through Hole 125V 1.5A MICRO Very Fast Acting
Datasheet
129In Stock
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
Littelfuse Fuses with Leads - Through Hole 125V .2A MICRO Very Fast Acting
Datasheet
74In Stock
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
Littelfuse Fuses with Leads - Through Hole 125V V/FA MICRO .500A
Datasheet
10In Stock
50Expected 12/3/2026
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
Littelfuse Fuses with Leads - Through Hole 125V .6A MICRO Very Fast Acting
Datasheet
14In Stock
650On Order
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
Littelfuse Fuses with Leads - Through Hole 125V .75A MICRO Very Fast Acting
Datasheet
9In Stock
300Expected 10/1/2026
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
Littelfuse Fuses with Leads - Through Hole 125V 1A MICRO Very Fast Acting
Datasheet
196In Stock
2.200On Order
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
Littelfuse Fuses with Leads - Through Hole 125V V/FA MICRO 1A
Datasheet
43In Stock
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
Littelfuse Fuses with Leads - Through Hole 125V V/FA MICRO 3A
Datasheet
5In Stock
25Expected 7/1/2027
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
Littelfuse Fuses with Leads - Through Hole 125V 4A MICRO Very Fast Acting
Datasheet
6In Stock
500Expected 9/24/2026
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
Littelfuse Fuses with Leads - Through Hole 125V 5A MICRO Very Fast Acting
Datasheet
24In Stock
6.000On Order
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