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 (DKK) 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 .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 .005A MICRO Very Fast Acting
Datasheet
200In 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 1.5A MICRO Very Fast Acting
Datasheet
159In 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 .05A MICRO Very Fast Acting
Datasheet
6.863In Stock
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 3A MICRO Very Fast Acting
Datasheet
5.246In 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 2A MICRO Very Fast Acting
Datasheet
359In 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
912In 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 .1A MICRO Very Fast Acting
Datasheet
1.135In Stock
1.200On Order
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
Littelfuse Fuses with Leads - Through Hole 125V .125A MICRO Very Fast Acting
Datasheet
2.263In Stock
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
1.345In 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 .4A MICRO Very Fast Acting
Datasheet
282In Stock
600Expected 29/10/2026
Min.: 1
Mult.: 1

273 PCB Mount Fuses 400 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 85 C 227 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 1A MICRO Very Fast Acting
Datasheet
821In Stock
500Expected 23/07/2026
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 2A MICRO Very Fast Acting
Datasheet
460In Stock
1.400Expected 30/07/2026
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 5A MICRO Very Fast Acting
Datasheet
Product Comments
562In Stock
1.500On 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
Littelfuse Fuses with Leads - Through Hole 125V .062A MICRO Very Fast Acting
Datasheet
4In Stock
5Expected 03/07/2026
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
61In Stock
100Expected 30/07/2026
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 .5A MICRO Very Fast Acting
Datasheet
167In Stock
Min.: 1
Mult.: 1

272 PCB Mount Fuses 500 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 125 C 167 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .062A MICRO Very Fast Acting
Datasheet
5In Stock
490On 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 .2A MICRO Very Fast Acting
Datasheet
46In Stock
50Expected 09/07/2026
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 .5A MICRO Very Fast Acting
Datasheet
82In Stock
500Expected 05/11/2026
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
129In Stock
640Expected 30/07/2026
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
87In Stock
100Expected 08/01/2027
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 V/FA MICRO 3A
Datasheet
16In 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 4A MICRO Very Fast Acting
Datasheet
Product Comments
14In Stock
500On Order
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 V/FA MICRO 5A
Datasheet
49In Stock
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