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: 144
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Description Datasheet Availability Pricing (GBP) 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 5A MICRO Very Fast Acting
Datasheet
5In Stock
Min.: 1
Mult.: 1

274 Hi-Rel Fuses 5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 85 C 280 Ohms 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 at 125 VDC Radial MICRO - 55 C + 125 C 16 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .015A MICRO Very Fast Acting
Datasheet
26In Stock
Min.: 1
Mult.: 1
No
273 PCB Mount Fuses 15 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 85 C 57.8 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 2A MICRO Very Fast Acting
Datasheet
459Expected 26/03/2026
Min.: 1
Mult.: 1

272 PCB Mount Fuses 2 A 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 125 C 42.5 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 2A MICRO Very Fast Acting
Datasheet
2,262On Order
Min.: 1
Mult.: 1

273 PCB Mount Fuses 2 A 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 85 C 42.5 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 4A MICRO Very Fast Acting
Datasheet
Product Comments
339On Order
Min.: 1
Mult.: 1

273 PCB Mount Fuses 4 A 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 85 C 20.2 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 5A MICRO Very Fast Acting
Datasheet
Product Comments
1,750On Order
Min.: 1
Mult.: 1

273 PCB Mount Fuses 5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 85 C 280 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .062A MICRO Very Fast Acting
Datasheet
6Expected 12/03/2026
Min.: 1
Mult.: 1

272 PCB Mount Fuses 62 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 125 C 2.55 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .1A MICRO Very Fast Acting
Datasheet
91Expected 12/03/2026
Min.: 1
Mult.: 1

272 PCB Mount Fuses 100 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 125 C 1.38 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole 125V V/FA MICRO .400A
Datasheet
5Expected 05/03/2026
Min.: 1
Mult.: 1

273 PCB Mount Fuses 400 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 85 C 227 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .75A MICRO Very Fast Acting
Datasheet
199Expected 05/03/2026
Min.: 1
Mult.: 1

273 PCB Mount Fuses 750 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 85 C 293 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V V/FA MICRO 5A
Datasheet
71Expected 27/03/2026
Min.: 1
Mult.: 1

273 PCB Mount Fuses 5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 85 C 280 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 1.5A MICRO Very Fast Acting
Datasheet
186Expected 12/03/2026
Min.: 1
Mult.: 1

273 PCB Mount Fuses 1.5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 85 C 57.8 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .01A MICRO Very Fast Acting
Datasheet
30Expected 24/02/2026
Min.: 1
Mult.: 1
No
273 PCB Mount Fuses 10 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 85 C 80 Ohms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .2A w/ Radial Leads
Datasheet
5Stock Available
More Info Available
Min.: 5
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 125V .3A w/ Radial Leads
Datasheet
35Stock 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 at 125 VDC 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 at 125 VDC Radial MICRO - 55 C + 125 C 227 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole FUSE 125V V/FA HI REL MICRO FUSE .002A
Datasheet
Non-Stocked Lead-Time 27 Weeks
Min.: 10
Mult.: 5

262 PCB Mount Fuses 2 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 125 C 46 mOhms 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 at 125 VDC 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 at 125 VDC 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 at 125 VDC 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 at 125 VDC 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 at 125 VDC 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 at 125 VDC Radial MICRO - 55 C + 125 C 114 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole FUSE 125V V/FA HI REL MICRO FUSE .750A
Datasheet
Non-Stocked
Min.: 10
Mult.: 5

262 PCB Mount Fuses 750 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 10 kA at 125 VDC Radial MICRO - 55 C + 125 C 104 mOhms Bulk