Littelfuse

Littelfuse

Littelfuse is a leading global manufacturer of circuit protection and power control products. With a wide range of offerings, including fuses, surge protection devices, relays, switches, and sensors, Littelfuse provides solutions for industries such as automotive, industrial, electronics, and electrical. Their products are designed to protect electrical and electronic systems from overcurrent, overvoltage, and other potentially damaging conditions, ensuring the safety and reliability of critical equipment. Littelfuse's commitment to innovation and quality has made them a trusted partner for customers worldwide, and their extensive product portfolio caters to a diverse range of applications. With a strong focus on customer satisfaction and technical expertise, Littelfuse continues to drive advancements in circuit protection and power control technology, enabling businesses to operate safely and efficiently.

Fuses

Results:
11,639
Series
Melting I²t
Current Rating (Amps)
Size / Dimension
Approval Agency
Package / Case
Breaking Capacity @ Rated Voltage
Voltage Rating - AC
Operating Temperature
Voltage Rating - DC
Color
Fuse Type
Mounting Type
Response Time
Results remaining11,639
Applied Filters:
Littelfuse
Select
ImageProduct DetailPriceAvailabilityECAD ModelColorMounting TypeVoltage Rating - ACCurrent Rating (Amps)Approval AgencyPackage / CaseResponse TimeVoltage Rating - DCOperating TemperatureSeriesFuse TypeBreaking Capacity @ Rated VoltageMelting I²tSize / Dimension
0435003.KRHF
FUSE BOARD MOUNT 3A 32VDC 0402
1+
$0.0525
5+
$0.0496
10+
$0.0467
Quantity
36,800 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-
3 A
CSA, UL
0402 (1005 Metric)
Fast Blow
32 V
-55°C ~ 90°C
435
Board Mount (Cartridge Style Excluded)
35A
0.2032
0.039" L x 0.020" W x 0.013" H (1.00mm x 0.51mm x 0.33mm)
02153.15MXP
FUSE CERAMIC 3.15A 250VAC 5X20MM
1+
$0.0500
5+
$0.0472
10+
$0.0444
Quantity
36,637 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Requires Holder
250 V
3.15 A
CCC, CE, CSA, KC, PSE, SEMKO, UL, VDE
5mm x 20mm
Slow Blow
-
-55°C ~ 125°C
215
Cartridge, Ceramic
1.5kA
43.255
0.205" Dia x 0.787" L (5.20mm x 20.00mm)
046602.5NRHF
FUSE BRD MNT 2.5A 32VAC/VDC 1206
1+
$0.0500
5+
$0.0472
10+
$0.0444
Quantity
36,301 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
32 V
2.5 A
CSA, UR
1206 (3216 Metric)
Fast Blow
32 V
-55°C ~ 90°C
466
Board Mount (Cartridge Style Excluded)
50A
0.3516
0.125" L x 0.060" W x 0.023" H (3.18mm x 1.52mm x 0.58mm)
0452005.MRL
FUSE BRD MNT 5A 125VAC/VDC 2SMD
1+
$0.0750
5+
$0.0708
10+
$0.0667
Quantity
36,290 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
125 V
5 A
CSA, PSE, UR
2-SMD, Square End Block
Slow Blow
125 V
-55°C ~ 125°C
NANO²® 452
Board Mount (Cartridge Style Excluded)
50A
53.72
0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0501015.WR
FUSE BOARD MOUNT 15A 32VDC 1206
1+
$0.1000
5+
$0.0944
10+
$0.0889
Quantity
36,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-
15 A
CSA, UL
1206 (3216 Metric)
Fast Blow
32 V
-55°C ~ 150°C
501
Board Mount (Cartridge Style Excluded)
150A
36.1
0.126" L x 0.064" W x 0.033" H (3.20mm x 1.63mm x 0.84mm)
0473005.YRT1L
FUSE BRD MNT 5A 125VAC/VDC AXIAL
1+
$0.3000
5+
$0.2833
10+
$0.2667
Quantity
36,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Through Hole
125 V
5 A
CSA, PSE, UR
Axial
Slow Blow
125 V
-55°C ~ 125°C
PICO® II 473
Board Mount (Cartridge Style Excluded)
50A
54.8
0.135" Dia x 0.280" L (3.43mm x 7.11mm)
0451.500MRL
FUSE BOARD MNT 500MA 125VAC/VDC
1+
$0.0875
5+
$0.0826
10+
$0.0778
Quantity
35,240 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
125 V
500 mA
CSA, UL
2-SMD, Square End Block
Fast Blow
125 V
-55°C ~ 125°C
NANO²® 451
Board Mount (Cartridge Style Excluded)
50A
0.0795
0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0466003.NR
FUSE BOARD MNT 3A 32VAC/VDC 1206
1+
$0.0500
5+
$0.0472
10+
$0.0444
Quantity
35,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
32 V
3 A
CSA, UL
1206 (3216 Metric)
Fast Blow
32 V
-55°C ~ 90°C
SlimLine™ 466
Board Mount (Cartridge Style Excluded)
50A
0.576
0.125" L x 0.060" W x 0.023" H (3.18mm x 1.52mm x 0.58mm)
0465001.DR
FUSE BOARD MOUNT 1A 250VAC 2SMD
1+
$0.7500
5+
$0.7083
10+
$0.6667
Quantity
31,246 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
250 V
1 A
PSE, UMF
2-SMD, Square End Block
Slow Blow
-
-55°C ~ 125°C
NANO²® 465
Board Mount (Cartridge Style Excluded)
100A
2.8
0.476" L x 0.177" W x 0.177" H (12.10mm x 4.50mm x 4.50mm)
0501020.WR
FUSE BOARD MOUNT 20A 32VDC 1206
1+
$0.0600
5+
$0.0567
10+
$0.0533
Quantity
30,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-
20 A
CSA, UL
1206 (3216 Metric)
Fast Blow
32 V
-55°C ~ 150°C
501
Board Mount (Cartridge Style Excluded)
150A
54.76
0.126" L x 0.064" W x 0.033" H (3.20mm x 1.63mm x 0.84mm)
0458010.DR
FUSE BOARD MOUNT 10A 32VAC 63VDC
1+
$0.2500
5+
$0.2361
10+
$0.2222
Quantity
30,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
32 V
10 A
cULus
1206 (3216 Metric)
Fast Blow
63 V
-55°C ~ 125°C
NANO²® 458
Board Mount (Cartridge Style Excluded)
50A
15
0.125" L x 0.062" W x 0.062" H (3.18mm x 1.58mm x 1.58mm)
0452004.MRL
FUSE BRD MNT 4A 125VAC/VDC 2SMD
1+
$0.1000
5+
$0.0944
10+
$0.0889
Quantity
30,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
125 V
4 A
CSA, PSE, UR
2-SMD, Square End Block
Slow Blow
125 V
-55°C ~ 125°C
NANO²® 452
Board Mount (Cartridge Style Excluded)
50A
34.4
0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0467002.NRHF
FUSE BOARD MNT 2A 32VAC/VDC 0603
1+
$0.0300
5+
$0.0283
10+
$0.0267
Quantity
30,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
32 V
2 A
CSA, cURus
0603 (1608 Metric)
Fast Blow
32 V
-55°C ~ 90°C
467
Board Mount (Cartridge Style Excluded)
35A
0.1891
0.063" L x 0.032" W x 0.012" H (1.60mm x 0.81mm x 0.31mm)
0438002.WR
FUSE BRD MNT 2A 12VAC 32VDC 0603
1+
$0.0325
5+
$0.0307
10+
$0.0289
Quantity
30,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
12 V
2 A
CSA, UL
0603 (1608 Metric)
Fast Blow
32 V
-55°C ~ 150°C
438
Board Mount (Cartridge Style Excluded)
50A
0.149
0.061" L x 0.033" W x 0.020" H (1.54mm x 0.85mm x 0.50mm)
39213150000
FUSE BRD MNT 3.15A 250VAC RADIAL
1+
$0.0325
5+
$0.0307
10+
$0.0289
Quantity
30,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Through Hole
250 V
3.15 A
CQC, cULus, KC, PSE/JET, SEMKO, VDE
Radial, Box
Slow Blow
-
-40°C ~ 125°C
TE5® 392
Board Mount (Cartridge Style Excluded)
32A
55
0.335" L x 0.157" W x 0.315" H (8.50mm x 4.00mm x 8.00mm)
0468.500NRHF
FUSE BOARD MOUNT 500MA 63VAC/VDC
1+
$0.0475
5+
$0.0449
10+
$0.0422
Quantity
30,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
63 V
500 mA
CSA, UL
1206 (3216 Metric)
Slow Blow
63 V
-55°C ~ 90°C
SlimLine™ 468
Board Mount (Cartridge Style Excluded)
50A
0.031
0.125" L x 0.060" W x 0.023" H (3.18mm x 1.52mm x 0.58mm)
0603SFV500F/32-2
FUSE BOARD MOUNT 5A 32VDC 0603
1+
$0.1250
5+
$0.1181
10+
$0.1111
Quantity
29,550 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-
5 A
UL
0603 (1608 Metric)
Fast Blow
32 V
-55°C ~ 125°C
SFV
Board Mount (Cartridge Style Excluded)
35A
2.62
0.063" L x 0.031" W x 0.014" H (1.60mm x 0.80mm x 0.35mm)
021606.3MXP
FUSE CERAMIC 6.3A 250VAC 5X20MM
1+
$0.0875
5+
$0.0826
10+
$0.0778
Quantity
29,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Requires Holder
250 V
6.3 A
BSI, CCC, CE, CSA, KC, PSE, SEMKO, UR, VDE
5mm x 20mm
Fast Blow
-
-55°C ~ 125°C
216
Cartridge, Ceramic
1.5kA
56.43
0.205" Dia x 0.787" L (5.20mm x 20.00mm)
0297025.WXNV
FUSE AUTO 25A 32VDC BLADE MINI
1+
$0.0500
5+
$0.0472
10+
$0.0444
Quantity
28,020 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Clear
Requires Holder
-
25 A
-
Blade, Miniature
Fast Blow
32 V
-40°C ~ 125°C
MINI® 297
Automotive
1kA
625
0.429" L x 0.150" W x 0.346" H (10.90mm x 3.80mm x 8.80mm)
0297020.WXNV
FUSE AUTO 20A 32VDC BLADE MINI
1+
$0.0450
5+
$0.0425
10+
$0.0400
Quantity
27,595 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Yellow
Requires Holder
-
20 A
-
Blade, Miniature
Fast Blow
32 V
-40°C ~ 125°C
MINI® 297
Automotive
1kA
380
0.429" L x 0.150" W x 0.346" H (10.90mm x 3.80mm x 8.80mm)

About  Fuses

Fuses are specialized devices designed to interrupt the flow of electrical current in a circuit when the current exceeds a specific threshold, providing protection against overcurrent conditions. They consist of a conductor that is intentionally designed to melt and open the circuit when exposed to excessive current, thereby preventing damage to the connected components or equipment. When the current flowing through a fuse surpasses its rated capacity, the heat generated within the fuse causes the conducting element to melt or blow, creating an open circuit and stopping the flow of electricity. This action effectively protects the circuit and connected devices from potential damage caused by excessive current flow. Fuses are available in various types and configurations, including fast-acting and slow-blow fuses, each with different response times to overcurrent conditions. Fast-acting fuses respond quickly to overloads, while slow-blow fuses offer a delayed response and can withstand temporary current surges without blowing. The selection of the appropriate fuse type depends on the specific requirements of the electrical circuit being protected. By using fuses with the correct characteristics, the risk of damage to equipment and hazards resulting from excessive current flow can be minimized, ensuring the safe and reliable operation of electrical systems.