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Mfr Part #
Quantity Available
Price
Series
Package
Product Status
Mounting Type
Fuse Type
Current Rating (Amps)
Voltage Rating - AC
Voltage Rating - DC
Response Time
Package / Case
Breaking Capacity @ Rated Voltage
Melting I²t
Approval Agency
Operating Temperature
Color
Size / Dimension
CIT Series
0685T4000-01
FUSE 4.0A 63VAC/DC SLOW 1206
Bel Fuse Inc.
232,572
In Stock
1 : $0.46000
Cut Tape (CT)
5,000 : $0.19711
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveSurface MountBoard Mount (Cartridge Style Excluded)4 A63 V63 VSlow Blow1206 (3216 Metric)50A2.56AEC-Q200, CE, cURus-55°C ~ 125°C-0.126" L x 0.062" W x 0.025" H (3.20mm x 1.58mm x 0.63mm)
C1Q Series
C1Q 4
FUSE BOARD MOUNT 4A 125VAC 63VDC
Bel Fuse Inc.
101,635
In Stock
1 : $0.48000
Cut Tape (CT)
5,000 : $0.20453
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveSurface MountBoard Mount (Cartridge Style Excluded)4 A125 V63 VFast Blow1206 (3216 Metric)100A AC, 50A DC0.038CE, CSA, cULus-55°C ~ 125°C-0.126" L x 0.062" W x 0.023" H (3.20mm x 1.58mm x 0.58mm)
0680L-Series
0680L4000-05
FUSE BRICK SMD 2410 SLOW 4A
Bel Fuse Inc.
110,870
In Stock
1 : $0.91000
Cut Tape (CT)
5,000 : $0.36540
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveSurface MountBoard Mount (Cartridge Style Excluded)4 A125 V125 VSlow Blow2-SMD, Square End Block50A AC, 100A DC24AEC-Q200, CE, cURus-55°C ~ 125°C-0.240" L x 0.100" W x 0.100" H (6.10mm x 2.54mm x 2.54mm)
SF-0603
SF-0603SP400M-2
FUSE BOARD MOUNT 4A 32VDC 0603
Bourns Inc.
21,122
In Stock
1 : $1.15000
Cut Tape (CT)
4,000 : $0.47543
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveSurface MountBoard Mount (Cartridge Style Excluded)4 A-32 VSlow Blow0603 (1608 Metric)50A2.3--55°C ~ 150°C-0.063" L x 0.031" W x 0.031" H (1.60mm x 0.80mm x 0.80mm)
Pico II 251, 253 Series
0251004.NAT1L
FUSE BRD MNT 4A 125VAC/VDC AXIAL
Littelfuse Inc.
0
In Stock
5,000 : $0.64635
Tape & Box (TB)
Cut Tape (CT)
Tape & Box (TB)
ActiveThrough HoleBoard Mount (Cartridge Style Excluded)4 A125 V125 VFast BlowAxial50A AC, 300A DC2.45CCC, CSA, cURus, PSE, TUV-55°C ~ 125°C-0.110" Dia x 0.280" L (2.80mm x 7.11mm)
Pico II 251, 253 Series
0251004.HAT1L
FUSE BRD MNT 4A 125VAC/VDC AXIAL
Littelfuse Inc.
0
In Stock
1 : $1.71000
Cut Tape (CT)
100 : $1.07480
Tape & Box (TB)
Cut Tape (CT)
Tape & Box (TB)
ActiveThrough HoleBoard Mount (Cartridge Style Excluded)4 A125 V125 VFast BlowAxial50A AC, 300A DC2.45CCC, CSA, cURus, PSE, TUV-55°C ~ 125°C-0.110" Dia x 0.280" L (2.80mm x 7.11mm)
Pico II 251, 253 Series
0251004.NRT1L
FUSE BRD MNT 4A 125VAC/VDC AXIAL
Littelfuse Inc.
183
In Stock
1 : $1.53000
Cut Tape (CT)
5,000 : $0.62050
Tape & Reel (TR)
5,000 : $0.33300
Tape & Reel (TR)
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
ActiveThrough HoleBoard Mount (Cartridge Style Excluded)4 A125 V125 VFast BlowAxial50A AC, 300A DC2.45CCC, CSA, cURus, PSE, TUV-55°C ~ 125°C-0.110" Dia x 0.280" L (2.80mm x 7.11mm)
Pico II 251, 253 Series
0251004.MRT1L
FUSE BRD MNT 4A 125VAC/VDC AXIAL
Littelfuse Inc.
27,124
In Stock
6,000
Factory
1 : $1.54000
Cut Tape (CT)
1,000 : $0.69547
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
ActiveThrough HoleBoard Mount (Cartridge Style Excluded)4 A125 V125 VFast BlowAxial50A AC, 300A DC2.45CCC, CSA, cURus, PSE, TUV-55°C ~ 125°C-0.110" Dia x 0.280" L (2.80mm x 7.11mm)
Pico II 251, 253 Series
0251004.MAT1L
FUSE BRD MNT 4A 125VAC/VDC AXIAL
Littelfuse Inc.
2,398
In Stock
1 : $1.54000
Cut Tape (CT)
1,000 : $0.69547
Tape & Box (TB)
Cut Tape (CT)
Tape & Box (TB)
ActiveThrough HoleBoard Mount (Cartridge Style Excluded)4 A125 V125 VFast BlowAxial50A AC, 300A DC2.45CCC, CSA, cURus, PSE, TUV-55°C ~ 125°C-0.110" Dia x 0.280" L (2.80mm x 7.11mm)
Pico II 251, 253 Series
0251004.MXL
FUSE BRD MNT 4A 125VAC/VDC AXIAL
Littelfuse Inc.
840
In Stock
1 : $1.54000
Bulk
Bulk
ActiveThrough HoleBoard Mount (Cartridge Style Excluded)4 A125 V125 VFast BlowAxial50A AC, 300A DC2.45CCC, CSA, cURus, PSE, TUV-55°C ~ 125°C-0.110" Dia x 0.280" L (2.80mm x 7.11mm)
451, 452 SERIES
0451004.MRL
FUSE BRD MNT 4A 125VAC/VDC 2SMD
Littelfuse Inc.
15,412
In Stock
24,000
Factory
1 : $2.10000
Cut Tape (CT)
1,000 : $0.95226
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveSurface MountBoard Mount (Cartridge Style Excluded)4 A125 V125 VFast Blow2-SMD, Square End Block50A3.152CSA, PSE, UL-55°C ~ 125°C-0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0458 SERIES
0458004.DR
FUSE BRD MNT 4A 32VAC 75VDC 1206
Littelfuse Inc.
20,452
In Stock
1 : $2.39000
Cut Tape (CT)
1,500 : $1.04166
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveSurface MountBoard Mount (Cartridge Style Excluded)4 A32 V75 VFast Blow1206 (3216 Metric)50A4.832cULus-55°C ~ 125°C-0.125" L x 0.062" W x 0.062" H (3.18mm x 1.58mm x 1.58mm)
0443 SERIES
0443004.DR
FUSE BOARD MOUNT 4A 250VAC 2SMD
Littelfuse Inc.
1,595
In Stock
1 : $2.56000
Cut Tape (CT)
1,500 : $1.11871
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveSurface MountBoard Mount (Cartridge Style Excluded)4 A250 V-Slow Blow2-SMD, Square End Block50A70.56cULus-55°C ~ 125°C-0.398" L x 0.123" W x 0.123" H (10.10mm x 3.12mm x 3.12mm)
451, 452 SERIES
0454004.MR
FUSE BRD MNT 4A 125VAC/VDC 2SMD
Littelfuse Inc.
20,255
In Stock
1 : $2.55000
Cut Tape (CT)
1,000 : $1.15690
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveSurface MountBoard Mount (Cartridge Style Excluded)4 A125 V125 VSlow Blow2-SMD, Square End Block50A34.4CSA, PSE, UL-55°C ~ 125°C-0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
451, 452 SERIES
0452004.MRL
FUSE BRD MNT 4A 125VAC/VDC 2SMD
Littelfuse Inc.
125,933
In Stock
12,000
Factory
1 : $2.81000
Cut Tape (CT)
1,000 : $1.26825
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveSurface MountBoard Mount (Cartridge Style Excluded)4 A125 V125 VSlow Blow2-SMD, Square End Block50A34.4CSA, PSE, UR-55°C ~ 125°C-0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
MFG_UMK_250-Series
3404.2422.11
FUSE BOARD MNT 4A 277VAC 250VDC
SCHURTER Inc.
25,160
In Stock
1 : $1.74000
Strip
Strip
ActiveRequires Holder, Surface MountBoard Mount (Cartridge Style Excluded)4 A277 V250 VSlow Blow2-SMD, Square End Block with Clip200A AC, 35A DC26cURus, VDE-40°C ~ 85°C-0.445" L x 0.165" W x 0.157" H (11.30mm x 4.20mm x 4.00mm)
217, 218, 219 Series
0218004.HXP
FUSE GLASS 4A 250VAC 5X20MM
Littelfuse Inc.
3,713
In Stock
1 : $1.84000
Bulk
Bulk
ActiveRequires HolderCartridge, Glass4 A250 V-Slow Blow5mm x 20mm40A69.1CCC, CE, CSA, K-MARK, PSE, SEMKO, UL, VDE-55°C ~ 125°C-0.205" Dia x 0.787" L (5.20mm x 20.00mm)
154^154T Omni Blok Series White
0154004.DR
FUSE BRD MNT 4A 125VAC/VDC 2SMD
Littelfuse Inc.
10,936
In Stock
3,000
Factory
1 : $4.25000
Cut Tape (CT)
1,500 : $1.85683
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveRequires Holder, Surface MountBoard Mount (Cartridge Style Excluded)4 A125 V125 VFast Blow2-SMD, Square End Block with Holder50A3.152PSE, UL-55°C ~ 125°C-0.383" L x 0.198" W x 0.150" H (9.73mm x 5.03mm x 3.81mm)
154^154T Omni Blok Series White
0154004.DRT
FUSE BRD MNT 4A 125VAC/VDC 2SMD
Littelfuse Inc.
26,383
In Stock
1 : $5.24000
Cut Tape (CT)
1,500 : $2.35761
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveRequires Holder, Surface MountBoard Mount (Cartridge Style Excluded)4 A125 V125 VSlow Blow2-SMD, Square End Block with Holder50A34.4PSE, UL-55°C ~ 125°C-0.383" L x 0.198" W x 0.150" H (9.73mm x 5.03mm x 3.81mm)
477 Series
0477004.MXP
FUSE CERM 4A 500VAC 400VDC 5X20
Littelfuse Inc.
55,462
In Stock
1 : $2.74000
Bulk
Bulk
ActiveRequires HolderCartridge, Ceramic4 A500 V400 VSlow Blow5mm x 20mm100A AC, 500A DC52.48cULus, PSE, SEMKO-55°C ~ 125°C-0.205" Dia x 0.787" L (5.20mm x 20.00mm)
477 (axial) Series
0477004.MXEP
FUSE CERM 4A 500VAC 400VDC 5X20
Littelfuse Inc.
11,985
In Stock
1 : $3.82000
Bulk
Bulk
ActiveThrough HoleCartridge, Ceramic4 A500 V400 VSlow Blow5mm x 20mm (Axial)100A AC, 500A DC52.48cULus, PSE, SEMKO-55°C ~ 125°C-0.228" Dia x 0.886" L (5.80mm x 22.50mm)
65,549
In Stock
1 : $0.35000
Cut Tape (CT)
5,000 : $0.14734
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveSurface MountBoard Mount (Cartridge Style Excluded)4 A-32 VFast Blow0603 (1608 Metric)50A0.0403UL-55°C ~ 125°C-0.061" L x 0.033" W x 0.018" H (1.55mm x 0.85mm x 0.45mm)
ERA 0402 Pkg
ERB-RD4R00X
FUSE BOARD MOUNT 4A 32VDC 0402
Panasonic Electronic Components
32,242
In Stock
1 : $0.42000
Cut Tape (CT)
10,000 : $0.16972
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveSurface MountBoard Mount (Cartridge Style Excluded)4 A-32 VFast Blow0402 (1005 Metric)35A-cUL-40°C ~ 125°C-0.040" L x 0.020" W x 0.019" H (1.00mm x 0.50mm x 0.48mm)
0603 (1608 metric) pkg
ERB-RE4R00V
FUSE BOARD MOUNT 4A 32VDC 0603
Panasonic Electronic Components
29,684
In Stock
1 : $0.43000
Cut Tape (CT)
5,000 : $0.18232
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveSurface MountBoard Mount (Cartridge Style Excluded)4 A-32 VFast Blow0603 (1608 Metric)50A-cUL, UL-40°C ~ 125°C-0.063" L x 0.032" W x 0.025" H (1.60mm x 0.81mm x 0.63mm)
CIF-SERIES
C1F 4
FUSE 4.0A 125VAC FAST 1206
Bel Fuse Inc.
62,689
In Stock
1 : $0.43000
Cut Tape (CT)
5,000 : $0.18270
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
ActiveSurface MountBoard Mount (Cartridge Style Excluded)4 A125 V63 VFast Blow1206 (3216 Metric)100A AC, 50A DC0.336AEC-Q200, cURus-55°C ~ 125°C-0.126" L x 0.062" W (3.20mm x 1.58mm)
Showing
1 - 25
of 1,074

4 A Fuses


A fuse is a device designed to stop current flow when it exceeds a certain limit (overcurrent protection). The devices works by creating an opening in a material situated between two end terminals. The material will melt (blow) from an increase in heat generated by the device as the current flow changes. The amount of time it takes the device to blow is often defined as fast or slow-blow.