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Circuit Protection > Fuses

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Fuses protect electrical circuits by interrupting the flow of current in case of overloads or faults. Key attributes include Current Rating (Amps), Breaking Capacity @ Rated Voltage, and Fuse Type. These components are essential for applications such as production electronics assembly and maintenance.

What are Fuses ?

Fuses are protective devices that interrupt electrical circuits to prevent damage from overloads or short circuits. They are commonly used in applications like new product design, maintenance, and field replacement. Important specifications for selecting fuses include Current Rating (Amps), which determines the maximum current the fuse can handle; Breaking Capacity @ Rated Voltage, which indicates the maximum fault current the fuse can safely interrupt; and Fuse Type, which affects the response time and application suitability. Ensuring compatibility with existing designs and validating lifecycle status are crucial for effective procurement.

Part & Mfr

Total Stock

Pricing & RFQ

Approval Agency

Breaking Capacity @ Rated Voltage

Color

Current Rating (Amps)

Fuse Type

Melting I²t

Mounting Type

Operating Temperature

Response Time

Size

Voltage Rating

0452002.NRL

Littelfuse Inc.

6,089

From Optech Co.,Limited

Price on request

6,089

CSA, PSE, UR

50A

2 A

Board Mount (Cartridge Style Excluded)

8.2

Surface Mount

-55°C ~ 125°C

Slow Blow

0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)

125 V

0468001.NR

Littelfuse Inc.

6,084

Across 3 distributors

Distributor	Stock	MOQ	Country
Braun Electronic Components	12	-	-
Bristol Electronics	5,000	-	-
Tokyo Device	1,072	-	-

Price on request

6,084

Distributor	Stock	MOQ	Country
Braun Electronic Components	12	-	-
Bristol Electronics	5,000	-	-
Tokyo Device	1,072	-	-

CSA, UL

50A

1 A

Board Mount (Cartridge Style Excluded)

0.127

Surface Mount

-55°C ~ 90°C

Slow Blow

0.125" L x 0.060" W x 0.023" H (3.18mm x 1.52mm x 0.58mm)

63 V

0443.750DR

Littelfuse Inc.

6,045

Price on request

6,045

cULus

50A

750 mA

Board Mount (Cartridge Style Excluded)

Surface Mount

-55°C ~ 125°C

Slow Blow

0.398" L x 0.123" W x 0.123" H (10.10mm x 3.12mm x 3.12mm)

250 V

021806.3MXP

Littelfuse Inc.

6,012

Across 3 distributors

Distributor	Stock	MOQ	Country
Braun Electronic Components	2,816	-	-
MW.FEP S.p.A.	2,816	-	-
Tokyo Device	380	-	-

Price on request

6,012

Distributor	Stock	MOQ	Country
Braun Electronic Components	2,816	-	-
MW.FEP S.p.A.	2,816	-	-
Tokyo Device	380	-	-

CCC, CE, CSA, K-MARK, PSE, SEMKO, UL, VDE

63A

6.3 A

Cartridge, Glass

198.5

Requires Holder

-55°C ~ 125°C

Slow Blow

0.205" Dia x 0.787" L (5.20mm x 20.00mm)

250 V

0437.250WR

Littelfuse Inc.

6,000

Price on request

6,000

CSA, UR

50A

250 mA

Board Mount (Cartridge Style Excluded)

0.003

Surface Mount

-55°C ~ 150°C

Fast Blow

0.126" L x 0.064" W x 0.032" H (3.20mm x 1.63mm x 0.82mm)

125 V

0314012.MXP

Littelfuse Inc.

6,000

Price on request

6,000

CE, CSA, K-MARK, UL

750A AC, 10kA DC

12 A

Cartridge, Ceramic

570

Requires Holder

-55°C ~ 125°C

Fast Blow

0.250" Dia x 1.250" L (6.35mm x 31.75mm)

250 V

UMTS 2

Bel Fuse

6,000

Price on request

6,000

cULus

100A

2 A

Board Mount (Cartridge Style Excluded)

9.2

Surface Mount

-55°C ~ 125°C

Slow Blow

0.476" L x 0.175" W x 0.175" H (12.10mm x 4.45mm x 4.45mm)

350 V

0251001.MRT1

Littelfuse Inc.

6,000

From Bristol Electronics

Price on request

6,000

CCC, CSA, cURus, PSE, TUV

50A AC, 300A DC

1 A

Board Mount (Cartridge Style Excluded)

0.256

Through Hole

-55°C ~ 125°C

Fast Blow

0.110" Dia x 0.280" L (2.80mm x 7.11mm)

125 V

SS-5H-1.6A-AP

Eaton - Electronics Division

6,000

Price on request

6,000

CQC, cURus, KC, PSE, TUV, VDE

100A

1.6 A

Board Mount (Cartridge Style Excluded)

Through Hole

-40°C ~ 125°C

Slow Blow

0.335" L x 0.169" W x 0.329" H (8.50mm x 4.30mm x 8.35mm)

300 V

0229005.MXP

Littelfuse Inc.

6,000

From Components Technology Group, Inc.

Price on request

6,000

CE, CSA, PSE, UL

400A

5 A

Cartridge, Glass

267

Requires Holder

-55°C ~ 125°C

Slow Blow

0.177" Dia x 0.570" L (4.50mm x 14.48mm)

125 V

3410.0022.03

Schurter Inc.

6,000

From Speed Components Ltd

Price on request

6,000

cURus

50A AC, 300A DC

250 mA

Board Mount (Cartridge Style Excluded)

0.0009

Surface Mount

-55°C ~ 150°C

Fast Blow

0.126" L x 0.061" W x 0.061" H (3.20mm x 1.55mm x 1.55mm)

125 V

0154007.DR

Littelfuse Inc.

5,991

Across 6 distributors

Distributor	Stock	MOQ	Country
NTD Electronics	1,031	-	-
ACK ELEKTRONIK	1,500	-	-
Speed Components Ltd	40	-	-
Bristol Electronics	21	-	-
Optech Co.,Limited	3,000	-	-
Tokyo Device	399	-	-

Price on request

5,991

Distributor	Stock	MOQ	Country
NTD Electronics	1,031	-	-
ACK ELEKTRONIK	1,500	-	-
Speed Components Ltd	40	-	-
Bristol Electronics	21	-	-
Optech Co.,Limited	3,000	-	-
Tokyo Device	399	-	-

PSE, UL

50A

7 A

Board Mount (Cartridge Style Excluded)

10.32

Requires Holder, Surface Mount

-55°C ~ 125°C

Fast Blow

0.383" L x 0.198" W x 0.150" H (9.73mm x 5.03mm x 3.81mm)

125 V

0997005.WXN

Littelfuse Inc.

5,910

Across 2 distributors

Distributor	Stock	MOQ	Country
NTD Electronics	910	-	-
Risen Electronics	5,000	-	-

Price on request

5,910

Distributor	Stock	MOQ	Country
NTD Electronics	910	-	-
Risen Electronics	5,000	-	-

1kA

Tan

5 A

Automotive

Requires Holder

-40°C ~ 125°C

Fast Blow

0.429" L x 0.150" W x 0.346" H (10.90mm x 3.80mm x 8.80mm)

58 V

0441002.WR

Littelfuse Inc.

5,795

Price on request

5,795

CSA, UL

50A

2 A

Board Mount (Cartridge Style Excluded)

0.3103

Surface Mount

-55°C ~ 150°C

Fast Blow

0.061" L x 0.033" W x 0.020" H (1.54mm x 0.85mm x 0.50mm)

32 V

0438004.WR

Littelfuse Inc.

5,756

Price on request

5,756

CSA, UL

50A

4 A

Board Mount (Cartridge Style Excluded)

0.692

Surface Mount

-55°C ~ 150°C

Fast Blow

0.061" L x 0.033" W x 0.020" H (1.54mm x 0.85mm x 0.50mm)

12 V

0437004.WR

Littelfuse Inc.

5,700

Price on request

5,700

CSA, UR

50A

4 A

Board Mount (Cartridge Style Excluded)

1.024

Surface Mount

-55°C ~ 150°C

Fast Blow

0.126" L x 0.064" W x 0.032" H (3.20mm x 1.63mm x 0.82mm)

32 V

0477004.MXEP

Littelfuse Inc.

5,634

Price on request

5,634

cULus, PSE, SEMKO

100A AC, 500A DC

4 A

Cartridge, Ceramic

52.48

Through Hole

-55°C ~ 125°C

Slow Blow

0.228" Dia x 0.886" L (5.80mm x 22.50mm)

500 V

0034.3120

Schurter Inc.

5,474

Across 3 distributors

Distributor	Stock	MOQ	Country
Seba Components	5,250	-	-
MW.FEP S.p.A.	194	-	-
OTL Components	30	-	-

Price on request

5,474

Distributor	Stock	MOQ	Country
Seba Components	5,250	-	-
MW.FEP S.p.A.	194	-	-
OTL Components	30	-	-

CCC, cURus, VDE

35A

2 A

Cartridge, Glass

Requires Holder

-55°C ~ 125°C

Slow Blow

0.205" Dia x 0.787" L (5.20mm x 20.00mm)

250 V

0154.630DR

Littelfuse Inc.

5,465

From Components Technology Group, Inc.

Price on request

5,465

50A

630 mA

Board Mount (Cartridge Style Excluded)

0.143

Requires Holder, Surface Mount

-55°C ~ 125°C

Fast Blow

0.383" L x 0.198" W x 0.150" H (9.73mm x 5.03mm x 3.81mm)

125 V

0466.375NR

Littelfuse Inc.

5,459

Across 2 distributors

Distributor	Stock	MOQ	Country
Bristol Electronics	459	-	-
Tokyo Device	5,000	-	-

Price on request

5,459

Distributor	Stock	MOQ	Country
Bristol Electronics	459	-	-
Tokyo Device	5,000	-	-

CSA, UL

50A

375 mA

Board Mount (Cartridge Style Excluded)

0.0028

Surface Mount

-55°C ~ 90°C

Fast Blow

0.125" L x 0.060" W x 0.023" H (3.18mm x 1.52mm x 0.58mm)

125 V

0473004.MRT1L

Littelfuse Inc.

5,399

Price on request

5,399

CSA, PSE, UR

50A

4 A

Board Mount (Cartridge Style Excluded)

Through Hole

-55°C ~ 125°C

Slow Blow

0.135" Dia x 0.280" L (3.43mm x 7.11mm)

125 V

3403.0286.23

Schurter Inc.

5,377

Across 2 distributors

Distributor	Stock	MOQ	Country
Braun Electronic Components	2,502	-	-
MW.FEP S.p.A.	2,875	-	-

Price on request

5,377

Distributor	Stock	MOQ	Country
Braun Electronic Components	2,502	-	-
MW.FEP S.p.A.	2,875	-	-

CQC, cURus, VDE

500A

16 A

Board Mount (Cartridge Style Excluded)

640

Surface Mount

-55°C ~ 125°C

Slow Blow

0.606" L x 0.211" W x 0.211" H (15.40mm x 5.35mm x 5.35mm)

250 V

SF-0603FP200-2

Bourns

5,328

From Optech Co.,Limited

Price on request

5,328

50A

2 A

Board Mount (Cartridge Style Excluded)

0.044

Surface Mount

-40°C ~ 105°C

Fast Blow

0.063" L x 0.032" W (1.60mm x 0.80mm)

32 V

0467.375NRHF

Littelfuse Inc.

5,200

Price on request

5,200

CSA, UL

50A

375 mA

Board Mount (Cartridge Style Excluded)

0.0035

Surface Mount

-55°C ~ 90°C

Fast Blow

0.063" L x 0.032" W x 0.012" H (1.60mm x 0.81mm x 0.31mm)

32 V

0433005.NR

Littelfuse Inc.

5,200

Price on request

5,200

CSA, UL

50A

5 A

Board Mount (Cartridge Style Excluded)

1.6

Surface Mount

-55°C ~ 90°C

Fast Blow

0.125" L x 0.060" W x 0.023" H (3.18mm x 1.52mm x 0.58mm)

24 V

0471003.NRT1L

Littelfuse Inc.

5,200

Price on request

5,200

PSE, UR

50A

3 A

Board Mount (Cartridge Style Excluded)

6.96

Through Hole

-55°C ~ 125°C

Slow Blow

0.110" Dia x 0.280" L (2.80mm x 7.11mm)

125 V

0154001.DRT

Littelfuse Inc.

5,140

Across 5 distributors

Distributor	Stock	MOQ	Country
Fe Components	2,957	-	-
NTD Electronics	940	-	-
MW.FEP S.p.A.	12	-	-
Bristol Electronics	245	-	-
Tokyo Device	986	-	-

Price on request

5,140

Distributor	Stock	MOQ	Country
Fe Components	2,957	-	-
NTD Electronics	940	-	-
MW.FEP S.p.A.	12	-	-
Bristol Electronics	245	-	-
Tokyo Device	986	-	-

PSE, UL

50A

1 A

Board Mount (Cartridge Style Excluded)

1.98

Requires Holder, Surface Mount

-55°C ~ 125°C

Slow Blow

0.383" L x 0.198" W x 0.150" H (9.73mm x 5.03mm x 3.81mm)

125 V

SST 1.5/5K

Bel Fuse

5,100

Price on request

5,100

AEC-Q200, CE, CSA, cULus

50A

1.5 A

Board Mount (Cartridge Style Excluded)

Surface Mount

-55°C ~ 125°C

Slow Blow

0.240" L x 0.100" W x 0.100" H (6.10mm x 2.54mm x 2.54mm)

125 V

0297030.WXNV

Littelfuse Inc.

5,048

Across 3 distributors

Distributor	Stock	MOQ	Country
Braun Electronic Components	24	-	-
Risen Electronics	5,000	-	-
Emiteli	24	-	-

Price on request

5,048

Distributor	Stock	MOQ	Country
Braun Electronic Components	24	-	-
Risen Electronics	5,000	-	-
Emiteli	24	-	-

1kA

Green

30 A

Automotive

1130

Requires Holder

-40°C ~ 125°C

Fast Blow

0.429" L x 0.150" W x 0.346" H (10.90mm x 3.80mm x 8.80mm)

32 V

SF-1206F100-2

Bourns

5,044

Across 2 distributors

Distributor	Stock	MOQ	Country
AA2DE	5,000	-	-
Speed Components Ltd	44	-	-

Price on request

5,044

Distributor	Stock	MOQ	Country
AA2DE	5,000	-	-
Speed Components Ltd	44	-	-

50A

1 A

Board Mount (Cartridge Style Excluded)

0.034

Surface Mount

-40°C ~ 105°C

Fast Blow

0.122" L x 0.061" W x 0.024" H (3.10mm x 1.55mm x 0.60mm)

63 V

0686F1000-01

Bel Fuse

5,006

Across 2 distributors

Distributor	Stock	MOQ	Country
ADI/AAR OEM Supply	6	-	-
AA2DE	5,000	-	-

Price on request

5,006

Distributor	Stock	MOQ	Country
ADI/AAR OEM Supply	6	-	-
AA2DE	5,000	-	-

AEC-Q200, cURus

35A AC, 50A DC

1 A

Board Mount (Cartridge Style Excluded)

0.0028

Surface Mount

-55°C ~ 125°C

Fast Blow

0.063" L x 0.032" W x 0.020" H (1.60mm x 0.81mm x 0.52mm)

32 V

0686F2500-01

Bel Fuse

5,000

Price on request

5,000

AEC-Q200, cURus

35A AC, 50A DC

2.5 A

Board Mount (Cartridge Style Excluded)

0.027

Surface Mount

-55°C ~ 125°C

Fast Blow

0.063" L x 0.032" W x 0.020" H (1.60mm x 0.81mm x 0.52mm)

32 V

0217005.MXP

Littelfuse Inc.

5,000

Price on request

5,000

BSI, CE, CCC, CSA, KC, PSE, SEMKO, UR, VDE

50A

5 A

Cartridge, Glass

42.795

Requires Holder

-55°C ~ 125°C

Fast Blow

0.205" Dia x 0.787" L (5.20mm x 20.00mm)

250 V

C1Q 250

Bel Fuse

5,000

Price on request

5,000

CE, CSA, cULus

100A AC, 50A DC

250 mA

Board Mount (Cartridge Style Excluded)

3E-05

Surface Mount

-55°C ~ 125°C

Fast Blow

0.126" L x 0.062" W x 0.023" H (3.20mm x 1.58mm x 0.58mm)

125 V

0433.500NR

Littelfuse Inc.

5,000

Price on request

5,000

CSA, UL

50A

500 mA

Board Mount (Cartridge Style Excluded)

0.006

Surface Mount

-55°C ~ 90°C

Fast Blow

0.125" L x 0.060" W x 0.023" H (3.18mm x 1.52mm x 0.58mm)

63 V

SF-1206S500-2

Bourns

5,000

Price on request

5,000

50A

5 A

Board Mount (Cartridge Style Excluded)

2.533

Surface Mount

-20°C ~ 105°C

Slow Blow

0.122" L x 0.061" W x 0.024" H (3.10mm x 1.55mm x 0.60mm)

32 V

0686F5000-01

Bel Fuse

5,000

Price on request

5,000

AEC-Q200, cURus

35A AC, 50A DC

5 A

Board Mount (Cartridge Style Excluded)

0.14

Surface Mount

-55°C ~ 125°C

Fast Blow

0.063" L x 0.032" W x 0.020" H (1.60mm x 0.81mm x 0.52mm)

32 V

021302.5MXP

Littelfuse Inc.

5,000

Price on request

5,000

BSI, CCC, CE, CSA, PSE, SEMKO, UR, VDE

35A

2.5 A

Cartridge, Glass

138

Requires Holder

-55°C ~ 125°C

Slow Blow

0.205" Dia x 0.787" L (5.20mm x 20.00mm)

250 V

0686F0500-01

Bel Fuse

5,000

Price on request

5,000

AEC-Q200, cURus

35A AC, 50A DC

500 mA

Board Mount (Cartridge Style Excluded)

0.0003

Surface Mount

-55°C ~ 125°C

Fast Blow

0.063" L x 0.032" W x 0.020" H (1.60mm x 0.81mm x 0.52mm)

32 V

0452001.MR

Littelfuse Inc.

5,000

From Bristol Electronics

Price on request

5,000

CSA, PSE, UR

50A

1 A

Board Mount (Cartridge Style Excluded)

1.98

Surface Mount

-55°C ~ 125°C

Slow Blow

0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)

125 V

0433.200NR

Littelfuse Inc.

5,000

From Braun Electronic Components

Price on request

5,000

CSA, UL

50A

200 mA

Board Mount (Cartridge Style Excluded)

0.00055

Surface Mount

-55°C ~ 90°C

Fast Blow

0.125" L x 0.060" W x 0.023" H (3.18mm x 1.52mm x 0.58mm)

125 V

0686F2000-01

Bel Fuse

5,000

Price on request

5,000

AEC-Q200, cURus

35A AC, 50A DC

2 A

Board Mount (Cartridge Style Excluded)

0.014

Surface Mount

-55°C ~ 125°C

Fast Blow

0.063" L x 0.032" W x 0.020" H (1.60mm x 0.81mm x 0.52mm)

32 V

0494005.NR

Littelfuse Inc.

5,000

Price on request

5,000

CSA, UR

35A

5 A

Board Mount (Cartridge Style Excluded)

0.9

Surface Mount

-50°C ~ 90°C

Fast Blow

0.063" L x 0.032" W x 0.012" H (1.60mm x 0.81mm x 0.31mm)

32 V

0451.500NRL

Littelfuse Inc.

5,000

Price on request

5,000

CSA, UL

50A

500 mA

Board Mount (Cartridge Style Excluded)

0.0795

Surface Mount

-55°C ~ 125°C

Fast Blow

0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)

125 V

0679L9150-05

Bel Fuse

5,000

Price on request

5,000

AEC-Q200, cURus

50A AC, 300A DC

15 A

Board Mount (Cartridge Style Excluded)

103.5

Surface Mount

-55°C ~ 125°C

Fast Blow

0.240" L x 0.100" W x 0.110" H (6.10mm x 2.54mm x 2.79mm)

125 V

C1Q 5

Bel Fuse

5,000

Price on request

5,000

CE, CSA, cULus

100A AC, 50A DC

5 A

Board Mount (Cartridge Style Excluded)

0.075

Surface Mount

-55°C ~ 125°C

Fast Blow

0.126" L x 0.062" W x 0.023" H (3.20mm x 1.58mm x 0.58mm)

125 V

0686F3000-01

Bel Fuse

5,000

Price on request

5,000

AEC-Q200, cURus

35A AC, 50A DC

3 A

Board Mount (Cartridge Style Excluded)

0.04

Surface Mount

-55°C ~ 125°C

Fast Blow

0.063" L x 0.032" W x 0.020" H (1.60mm x 0.81mm x 0.52mm)

32 V

BK1/S505-1-R

Eaton - Electronics Division

5,000

Price on request

5,000

BSI, CCC/CQC, CSA, cURus, IMQ, KC, PSE/JET, SEMKO, VDE

1.5kA

1 A

Cartridge, Ceramic

1.28

Requires Holder

Slow Blow

0.205" Dia x 0.787" L (5.20mm x 20.00mm)

250 V

7010.9880.59

Schurter Inc.

5,000

From Bristol Electronics

Price on request

5,000

cURus

5 A

Cartridge, Ceramic

Surface Mount

-55°C ~ 125°C

Fast Blow

0.079" Dia x 0.276" L (2.00mm x 7.00mm)

0468001.NRHF

Littelfuse Inc.

4,992

Across 3 distributors

Distributor	Stock	MOQ	Country
Braun Electronic Components	1	-	-
RAD	1	-	-
Tokyo Device	4,990	-	-

Price on request

4,992

Distributor	Stock	MOQ	Country
Braun Electronic Components	1	-	-
RAD	1	-	-
Tokyo Device	4,990	-	-

CSA, UL

50A

1 A

Board Mount (Cartridge Style Excluded)

0.127

Surface Mount

-55°C ~ 90°C

Slow Blow

0.125" L x 0.060" W x 0.023" H (3.18mm x 1.52mm x 0.58mm)

63 V

Showing 201-250 of 24,959 products

About Fuses

Fuses are essential components in circuit protection, designed to safeguard electrical circuits from overloads and short circuits. They operate by breaking the circuit when the current exceeds a predetermined level, thus preventing damage to connected devices.

When sourcing fuses, it is crucial to consider several important attributes. Key specifications include the approval agency, breaking capacity at rated voltage, current rating in amps, and fuse type. Understanding these parameters will help you select the appropriate fuse for your specific application.

Fuses are widely used in various applications, including new product design and prototyping, production electronics assembly, maintenance and field replacement, and engineering evaluation and qualification. Each application may require different fuse characteristics, making it essential to validate lifecycle status and explore alternate-source options before submitting a Request for Quotation (RFQ).

Buyers should prioritize critical specifications such as approval agency and breaking capacity when comparing fuses. Additionally, confirming mechanical and electrical compatibility with existing design constraints is vital to reduce sourcing risks. Utilize parametric filtering to streamline your selection process and ensure that the components meet your project requirements.

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