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 (IDR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
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Voltage Rating DC
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Packaging
Littelfuse Fuses with Leads - Through Hole 125V V/FA MICRO 5A
Datasheet
5In Stock
65On 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 1A MICRO Very Fast Acting
Datasheet
3In Stock
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
Littelfuse Fuses with Leads - Through Hole 2A, 125V FM02A Mil Micro Fuse
Datasheet
3In Stock
Min.: 1
Mult.: 1

274 Hi-Rel 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 3A MICRO Very Fast Acting
Datasheet
3In Stock
Min.: 1
Mult.: 1

274 Hi-Rel 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 .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 .031A MICRO Very Fast Acting
Datasheet
8In Stock
Min.: 1
Mult.: 1
No
272 PCB Mount Fuses 31 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 125 C 16 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .01A MICRO Very Fast Acting
Datasheet
1In Stock
20Expected 24/09/2026
Min.: 1
Mult.: 1
No
273 PCB Mount Fuses 10 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 85 C 80 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .015A MICRO Very Fast Acting
Datasheet
14In Stock
Min.: 1
Mult.: 1
No
273 PCB Mount Fuses 15 mA 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 .5A MICRO Very Fast Acting
Datasheet
518On Order
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 .3A MICRO Very Fast Acting
Datasheet
300Expected 27/05/2027
Min.: 1
Mult.: 1

273 PCB Mount Fuses 300 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 85 C 1.25 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .4A MICRO Very Fast Acting
Datasheet
1.983On Order
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 .05A MICRO Very Fast Acting
Datasheet
40Expected 27/05/2027
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
Littelfuse Fuses with Leads - Through Hole 125V .125A MICRO Very Fast Acting
Datasheet
5Expected 22/10/2026
Min.: 1
Mult.: 1

272 PCB Mount Fuses 125 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 125 C 1 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole 125V V/FA MICRO .500A
Datasheet
63On Order
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 V/FA MICRO 2A
Datasheet
35Expected 24/09/2026
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
45On Order
Min.: 1
Mult.: 1

274 Hi-Rel 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 .3A w/ Radial Leads
Datasheet
5Stock Available
More Info Available
Min.: 5
Mult.: 5
No
269 PCB Mount Fuses 300 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 125 C 1.25 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .4A w/ Radial Leads
Datasheet
30Stock Available
More Info Available
Min.: 5
Mult.: 5
No
269 PCB Mount Fuses 400 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 125 C 227 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .2A w/ Radial Leads
Datasheet
Non-Stocked Lead-Time 37 Weeks
Min.: 10
Mult.: 5
No
269 PCB Mount Fuses 200 mA 125 VAC Fast Blow Leaded Fuses 125 VDC Radial MICRO Bulk
Littelfuse Fuses with Leads - Through Hole FUSE 125V V/FA HI REL MICRO FUSE .010A
Datasheet
Non-Stocked Lead-Time 27 Weeks
Min.: 10
Mult.: 5

262 PCB Mount Fuses 10 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 125 C 94 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole FUSE 125V V/FA HI REL MICRO FUSE .031A
Datasheet
Non-Stocked Lead-Time 27 Weeks
Min.: 10
Mult.: 5

262 PCB Mount Fuses 31 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 125 C 16.45 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole FUSE 125V V/FA HI REL MICRO FUSE .050A
Datasheet
Non-Stocked Lead-Time 27 Weeks
Min.: 10
Mult.: 5

262 PCB Mount Fuses 50 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 125 C 3.2 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole FUSE 125V V/FA HI REL MICRO FUSE .200A
Datasheet
Non-Stocked Lead-Time 27 Weeks
Min.: 10
Mult.: 5

262 PCB Mount Fuses 200 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 125 C 2.3 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole FUSE 125V V/FA HI REL MICRO FUSE .400A
Datasheet
Non-Stocked Lead-Time 27 Weeks
Min.: 10
Mult.: 5

262 PCB Mount Fuses 400 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 125 C 227 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole FUSE 125V V/FA HI REL MICRO FUSE .700A
Datasheet
Non-Stocked
Min.: 10
Mult.: 5

262 PCB Mount Fuses 700 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA Radial MICRO - 55 C + 125 C 114 mOhms Bulk