Cartridge Fuses – Mouser Peru

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S520 Fast-Acting Ceramic Tube Fuses

Eaton Electronics S520 Fast-Acting Ceramic Tube Fuses provide reliable overcurrent protection up to 20A and 420V_AC for high power and higher voltage applications, respectively. Typical applications include data centers, telecom systems, and intelligent commercial buildings. The S520 fuses are available in a compact small-footprint 5mm x 20mm cartridge or axial leaded packages, providing excellent board savings. These fuses can withstand operating temperatures ranging from -55°C to +125°C, making them suitable for use in various environments. All products are lead-free, halogen-free, and RoHS compliant.

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Part #

Cartridge Fuses 12.5A 420V FAST ACTING

BK-S520-V-12-5-R
Eaton Electronics
1: S/23.32
448In Stock

Mfr. Part #
BK-S520-V-12-5-R

Mouser Part #
504-BK-S520-V-12-5-R

Eaton Electronics

Cartridge Fuses 12.5A 420V FAST ACTING

Learn More

Datasheet

448In Stock

S/23.32

S/19.54

S/15.22

S/14.79

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

12.5 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

8.1 mOhms

Cartridge Fuses 15A 420V FAST ACTING

BK-S520-15-R
Eaton Electronics
1: S/25.22
11In Stock

Mfr. Part #
BK-S520-15-R

Mouser Part #
504-BK-S520-15-R

Eaton Electronics

Cartridge Fuses 15A 420V FAST ACTING

Learn More

Datasheet

11In Stock

S/25.22

S/23.39

S/21.99

S/17.01

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

15 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

6.8 mOhms

Cartridge Fuses 16A 420V FAST ACTING

BK-S520-16-R
Eaton Electronics
1: S/17.28
78In Stock

Mfr. Part #
BK-S520-16-R

Mouser Part #
504-BK-S520-16-R

Eaton Electronics

Cartridge Fuses 16A 420V FAST ACTING

Learn More

Datasheet

78In Stock

S/17.28

S/14.36

S/13.27

S/12.14

Min.: 1
Mult.: 1

S520

Ceramic Fuses

16 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

6.1 mOhms

Cartridge Fuses 8A 420V FAST ACTING

BK-S520-8-R
Eaton Electronics
1: S/17.94
198In Stock

Mfr. Part #
BK-S520-8-R

Mouser Part #
504-BK-S520-8-R

Eaton Electronics

Cartridge Fuses 8A 420V FAST ACTING

Learn More

Datasheet

198In Stock

S/17.94

S/14.91

S/13.74

S/13.70

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

8 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

9 mOhms

Cartridge Fuses 10A 420V FAST ACTING

BK-S520-V-10-R
Eaton Electronics
1: S/21.68
166In Stock

Mfr. Part #
BK-S520-V-10-R

Mouser Part #
504-BK-S520-V-10-R

Eaton Electronics

Cartridge Fuses 10A 420V FAST ACTING

Learn More

Datasheet

166In Stock

S/21.68

S/17.98

S/16.62

S/16.35

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

10 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

8 mOhms

Cartridge Fuses 15A 420V FAST ACTING

BK-S520-V-15-R
Eaton Electronics
1: S/25.81
128In Stock

Mfr. Part #
BK-S520-V-15-R

Mouser Part #
504-BK-S520-V-15-R

Eaton Electronics

Cartridge Fuses 15A 420V FAST ACTING

Learn More

Datasheet

128In Stock

S/25.81

S/24.06

S/19.00

S/17.05

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

15 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

6.8 mOhms

Cartridge Fuses 8A 420V FAST ACTING

BK-S520-V-8-R
Eaton Electronics
1: S/25.81
1In Stock

Mfr. Part #
BK-S520-V-8-R

Mouser Part #
504-BK-S520-V-8-R

Eaton Electronics

Cartridge Fuses 8A 420V FAST ACTING

Learn More

Datasheet

1In Stock

S/25.81

S/22.65

S/17.36

S/16.00

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

8 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

9 mOhms

Cartridge Fuses S520 420Vac, 12.5A, bulk

BK/S520-12-5-R
Eaton Electronics
1: S/27.60
12In Stock

Mfr. Part #
BK/S520-12-5-R

Mouser Part #
504-BK/S520-12-5-R

Eaton Electronics

Cartridge Fuses S520 420Vac, 12.5A, bulk

Learn More

Datasheet

12In Stock

S/27.60

S/25.65

S/22.89

S/17.79

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

12.5 A

5 mm x 20 mm

Bulk

Cartridge Fuses 10A 420V FAST ACTING

BK-S520-10-R
Eaton Electronics
1: S/25.22
200Expected 9/28/2026

Mfr. Part #
BK-S520-10-R

Mouser Part #
504-BK-S520-10-R

Eaton Electronics

Cartridge Fuses 10A 420V FAST ACTING

Learn More

Datasheet

200Expected 9/28/2026

S/25.22

S/22.19

S/18.80

S/16.27

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

10 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

8 mOhms

Cartridge Fuses 20A 420V FAST ACTING

BK-S520-20-R
Eaton Electronics
1: S/23.98
170On Order

Mfr. Part #
BK-S520-20-R

Mouser Part #
504-BK-S520-20-R

Eaton Electronics

Cartridge Fuses 20A 420V FAST ACTING

Learn More

Datasheet

170On Order

S/23.98

S/19.93

S/18.37

S/15.26

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

20 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

5 mOhms

Cartridge Fuses S520 420Vac, 10A, standard

S520-10-R
Eaton Electronics
1: S/46.48
105Expected 9/28/2026

Mfr. Part #
S520-10-R

Mouser Part #
504-S520-10-R

Eaton Electronics

Cartridge Fuses S520 420Vac, 10A, standard

Learn More

Datasheet

105Expected 9/28/2026

S/46.48

S/34.29

S/27.33

S/26.24

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

10 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

8 mOhms

Cartridge Fuses 16A 420V FAST ACTING

BK-S520-V-16-R
Eaton Electronics
1: S/14.40
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
BK-S520-V-16-R

Mouser Part #
504-BK-S520-V-16-R

Eaton Electronics

Cartridge Fuses 16A 420V FAST ACTING

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/14.40

S/12.92

S/12.42

Min.: 1
Mult.: 1

S520

Ceramic Fuses

16 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

6.1 mOhms

Cartridge Fuses 20A 420V FAST ACTING

BK-S520-V-20-R
Eaton Electronics
1: S/25.81
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
BK-S520-V-20-R

Mouser Part #
504-BK-S520-V-20-R

Eaton Electronics

Cartridge Fuses 20A 420V FAST ACTING

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/25.81

S/22.65

S/20.90

S/17.36

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

20 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

5 mOhms

Cartridge Fuses S520 420Vac, 10A, BK1

BK1-S520-10-R
Eaton Electronics
1,000: S/12.49
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
BK1-S520-10-R

Mouser Part #
504-BK1-S520-10-R

Eaton Electronics

Cartridge Fuses S520 420Vac, 10A, BK1

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/12.49

S/12.46

Min.: 1,000
Mult.: 1,000

S520

Ceramic Fuses

10 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

8 mOhms

Cartridge Fuses S520 420Vac, 12.5A, BK1

BK1-S520-12-5-R
Eaton Electronics
1,000: S/12.49
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
BK1-S520-12-5-R

Mouser Part #
504-BK1-S520-12-5-R

Eaton Electronics

Cartridge Fuses S520 420Vac, 12.5A, BK1

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/12.49

S/12.46

Min.: 1,000
Mult.: 1,000

S520

Ceramic Fuses

12.5 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

8.1 mOhms

Cartridge Fuses S520 420Vac, 15A, BK1

BK1-S520-15-R
Eaton Electronics
1,000: S/12.49
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
BK1-S520-15-R

Mouser Part #
504-BK1-S520-15-R

Eaton Electronics

Cartridge Fuses S520 420Vac, 15A, BK1

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/12.49

S/12.46

Min.: 1,000
Mult.: 1,000

S520

Ceramic Fuses

15 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

6.8 mOhms

Cartridge Fuses S520 420Vac, 16A, BK1

BK1-S520-16-R
Eaton Electronics
1,000: S/12.49
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
BK1-S520-16-R

Mouser Part #
504-BK1-S520-16-R

Eaton Electronics

Cartridge Fuses S520 420Vac, 16A, BK1

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/12.49

S/12.46

Min.: 1,000
Mult.: 1,000

S520

Ceramic Fuses

16 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

6.1 mOhms

Cartridge Fuses S520 420Vac, 20A, BK1

BK1-S520-20-R
Eaton Electronics
1,000: S/12.49
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
BK1-S520-20-R

Mouser Part #
504-BK1-S520-20-R

Eaton Electronics

Cartridge Fuses S520 420Vac, 20A, BK1

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/12.49

S/12.46

Min.: 1,000
Mult.: 1,000

S520

Ceramic Fuses

20 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

5 mOhms

Cartridge Fuses S520 420Vac, 8A, BK1

BK1-S520-8-R
Eaton Electronics
1,000: S/12.49
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
BK1-S520-8-R

Mouser Part #
504-BK1-S520-8-R

Eaton Electronics

Cartridge Fuses S520 420Vac, 8A, BK1

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/12.49

S/12.46

Min.: 1,000
Mult.: 1,000

S520

Ceramic Fuses

8 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

9 mOhms

Cartridge Fuses S520 420Vac, 12.5A, standard

S520-12-5-R
Eaton Electronics
1: S/46.48
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
S520-12-5-R

Mouser Part #
504-S520-12-5-R

Eaton Electronics

Cartridge Fuses S520 420Vac, 12.5A, standard

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/46.48

S/27.79

S/25.42

S/22.19

Min.: 1
Mult.: 1

S520

Ceramic Fuses

10 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

8.1 mOhms

Cartridge Fuses S520 420Vac, 15A, standard

S520-15-R
Eaton Electronics
1: S/46.48
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
S520-15-R

Mouser Part #
504-S520-15-R

Eaton Electronics

Cartridge Fuses S520 420Vac, 15A, standard

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/46.48

S/34.29

S/27.33

S/26.24

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

15 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

6.8 mOhms

Cartridge Fuses S520 420Vac, 16A, standard

S520-16-R
Eaton Electronics
1: S/46.48
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
S520-16-R

Mouser Part #
504-S520-16-R

Eaton Electronics

Cartridge Fuses S520 420Vac, 16A, standard

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/46.48

S/28.03

S/25.18

S/22.30

S/22.19

Min.: 1
Mult.: 1

S520

Ceramic Fuses

16 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

6.1 mOhms

Cartridge Fuses S520 420Vac, 20A, standard

S520-20-R
Eaton Electronics
1: S/46.48
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
S520-20-R

Mouser Part #
504-S520-20-R

Eaton Electronics

Cartridge Fuses S520 420Vac, 20A, standard

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/46.48

S/31.33

S/28.45

S/24.52

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

20 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

5 mOhms

Cartridge Fuses S520 420Vac, 8A, standard

S520-8-R
Eaton Electronics
1: S/46.48
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
S520-8-R

Mouser Part #
504-S520-8-R

Eaton Electronics

Cartridge Fuses S520 420Vac, 8A, standard

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/46.48

S/36.90

S/35.73

S/32.07

View

Min.: 1
Mult.: 1

S520

Ceramic Fuses

8 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Bulk

9 mOhms

Cartridge Fuses S520 axial 420Vac, 10A, tape and reel

TR2-S520-V-10-R
Eaton Electronics
1,500: S/12.65
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
TR2-S520-V-10-R

Mouser Part #
504-TR2-S520-V-10-R

Eaton Electronics

Cartridge Fuses S520 axial 420Vac, 10A, tape and reel

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

S/12.65

Min.: 1,500
Mult.: 1,500

: 1,500

S520

Ceramic Fuses

10 A

Fast Blow

5 mm x 20 mm

420 VAC

1.5 kA

Board Mount

Axial

- 55 C

+ 125 C

Reel

8 mOhms

S520 Fast-Acting Ceramic Tube Fuses

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