Surface Mount Fuses – Mouser Canada

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437 Series SMT Fuses

Littelfuse 437 Series SMT Fuses protect circuits against overcurrent in ambient high-temperature situations. These ceramic fuses operate bewteen -55° and +150°C temperatures, providing both high I²t values and inrush current withstand capabilities. The halogen-free 437 series gives users a high performance reliability, with models ranging from 250mA to 8A current rating. These Littelfuse fast-acting, surface mount fuses are suitable for both leaded and lead-free reflow as well as wave soldering. 437 series fuses are ideal for servers, printers, scanners, data modems, LCD displays, and LED lighting applications.

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Part #

Surface Mount Fuses 63V 1.25A FA 1206

04371.25WR
Littelfuse
1: $2.25
3,028In Stock

Mfr. Part #
04371.25WR

Mouser Part #
576-04371.25WR

Littelfuse

Surface Mount Fuses 63V 1.25A FA 1206

Learn More

Datasheet

3,028In Stock

Cut Tape

$2.25

$1.99

$1.89

$1.53

View

Reel

$0.904

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

1.25 A

63 VAC

63 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

318 mOhms

Surface Mount Fuses 63V 1.75A FA 1206

04371.75WR
Littelfuse
1: $2.25
7,568In Stock

Mfr. Part #
04371.75WR

Mouser Part #
576-04371.75WR

Littelfuse

Surface Mount Fuses 63V 1.75A FA 1206

Learn More

Datasheet

7,568In Stock

Cut Tape

$2.25

$1.99

$1.89

$1.53

View

Reel

$0.903

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

1.75 A

63 VAC

63 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

71 mOhms

Surface Mount Fuses 32V FA 1206 3.5A

043703.5WR
Littelfuse
1: $2.23
3,431In Stock

Mfr. Part #
043703.5WR

Mouser Part #
576-043703.5WR

Littelfuse

Surface Mount Fuses 32V FA 1206 3.5A

Learn More

Datasheet

3,431In Stock

Cut Tape

$2.23

$1.86

$1.71

$1.42

View

Reel

$0.903

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

3.5 A

45 VAC

63 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

27 mOhms

Surface Mount Fuses 125V .250A FA 1206

0437.250WR
Littelfuse
1: $1.99
10,265In Stock
30,000On Order

Mfr. Part #
0437.250WR

Mouser Part #
576-0437.250WR

Littelfuse

Surface Mount Fuses 125V .250A FA 1206

Learn More

Datasheet

10,265In Stock

30,000On Order

Cut Tape

$1.99

$1.77

$1.63

$1.26

View

Reel

$0.723

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

250 mA

125 VAC

125 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

2.29 Ohms

Surface Mount Fuses FUSE 125V FA 1206 .250A AECQ

0437.250WRA
Littelfuse
1: $2.33
3,517In Stock
3,000Expected 2026-08-18

Mfr. Part #
0437.250WRA

Mouser Part #
576-0437.250WRA

Littelfuse

Surface Mount Fuses FUSE 125V FA 1206 .250A AECQ

Datasheet

3,517In Stock

3,000Expected 2026-08-18

Cut Tape

$2.33

$1.94

$1.79

$1.48

View

Reel

$1.01

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Fuses

Fast Blow

250 mA

125 VAC

125 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

AEC-Q200

Reel, Cut Tape, MouseReel

2.29 Ohms

Surface Mount Fuses 125V .375A FA 1206

0437.375WR
Littelfuse
1: $1.89
3,788In Stock
6,000Expected 2026-09-07

Mfr. Part #
0437.375WR

Mouser Part #
576-0437.375WR

Littelfuse

Surface Mount Fuses 125V .375A FA 1206

Learn More

Datasheet

3,788In Stock

6,000Expected 2026-09-07

Cut Tape

$1.89

$1.68

$1.58

$1.30

View

Reel

$0.723

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

375 mA

125 VAC

125 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

1.33 Ohms

Surface Mount Fuses .375A 125V AECQ

0437.375WRA
Littelfuse
1: $2.35
15,855In Stock

Mfr. Part #
0437.375WRA

Mouser Part #
576-0437.375WRA

Littelfuse

Surface Mount Fuses .375A 125V AECQ

Datasheet

15,855In Stock

Cut Tape

$2.35

$2.07

$1.97

$1.60

View

Reel

$0.948

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Fuses

Fast Blow

375 mA

125 VAC

125 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

AEC-Q200

Reel, Cut Tape, MouseReel

1.33 Ohms

Surface Mount Fuses 63V .500A FA 1206

0437.500WR
Littelfuse
1: $1.93
5,844In Stock
6,000Expected 2026-10-12

Mfr. Part #
0437.500WR

Mouser Part #
576-0437.500WR

Littelfuse

Surface Mount Fuses 63V .500A FA 1206

Learn More

Datasheet

5,844In Stock

6,000Expected 2026-10-12

Cut Tape

$1.93

$1.76

$1.56

$1.30

View

Reel

$0.723

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

500 mA

63 VAC

63 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

908 mOhms

Surface Mount Fuses 63V .750A FA 1206

0437.750WR
Littelfuse
1: $2.30
3,602In Stock

Mfr. Part #
0437.750WR

Mouser Part #
576-0437.750WR

Littelfuse

Surface Mount Fuses 63V .750A FA 1206

Learn More

Datasheet

3,602In Stock

Cut Tape

$2.30

$2.04

$1.94

$1.53

View

Reel

$0.904

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

750 mA

63 VAC

63 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

665 mOhms

Surface Mount Fuses 63V FA 1206 1A

0437001.WR
Littelfuse
1: $2.45
14,010In Stock
21,000Expected 2026-11-16

Mfr. Part #
0437001.WR

Mouser Part #
576-0437001.WR

Littelfuse

Surface Mount Fuses 63V FA 1206 1A

Learn More

Datasheet

14,010In Stock

21,000Expected 2026-11-16

Cut Tape

$2.45

$2.16

$1.94

$1.61

View

Reel

$0.904

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

1 A

63 VAC

63 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

360 mOhms

Surface Mount Fuses 63V FA 1206 2A

0437002.WR
Littelfuse
1: $1.81
12,117In Stock

Mfr. Part #
0437002.WR

Mouser Part #
576-0437002.WR

Littelfuse

Surface Mount Fuses 63V FA 1206 2A

Learn More

Datasheet

12,117In Stock

Cut Tape

$1.81

$1.60

$1.37

$1.10

View

Reel

$0.881

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

2 A

63 VAC

63 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

62 mOhms

Surface Mount Fuses 32V FA 1206 3A

0437003.WR
Littelfuse
1: $2.43
4,071In Stock
3,000Expected 2026-11-25

Mfr. Part #
0437003.WR

Mouser Part #
576-0437003.WR

Littelfuse

Surface Mount Fuses 32V FA 1206 3A

Learn More

Datasheet

4,071In Stock

3,000Expected 2026-11-25

Cut Tape

$2.43

$2.16

$1.96

$1.63

View

Reel

$0.904

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

3 A

32 VAC

35 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

33 mOhms

Surface Mount Fuses 32V FA 1206 7A

0437007.WR
Littelfuse
1: $2.56
2,976In Stock

Mfr. Part #
0437007.WR

Mouser Part #
576-0437007.WR

Littelfuse

Surface Mount Fuses 32V FA 1206 7A

Learn More

Datasheet

2,976In Stock

Cut Tape

$2.56

$2.28

$2.04

$1.68

View

Reel

$0.959

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

7 A

32 VAC

35 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

10 mOhms

Surface Mount Fuses 63V FA 1206 1.5A

043701.5WR
Littelfuse
1: $2.25
2,579In Stock

Mfr. Part #
043701.5WR

Mouser Part #
576-043701.5WR

Littelfuse

Surface Mount Fuses 63V FA 1206 1.5A

Learn More

Datasheet

2,579In Stock

Cut Tape

$2.25

$1.99

$1.89

$1.53

View

Reel

$0.904

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

1.5 A

63 VAC

63 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

209 mOhms

Surface Mount Fuses 32V FA 1206 2.5A

043702.5WR
Littelfuse
1: $2.25
4,073In Stock

Mfr. Part #
043702.5WR

Mouser Part #
576-043702.5WR

Littelfuse

Surface Mount Fuses 32V FA 1206 2.5A

Learn More

Datasheet

4,073In Stock

Cut Tape

$2.25

$1.99

$1.89

$1.53

View

Reel

$0.903

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

2.5 A

45 VAC

63 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

43 mOhms

Surface Mount Fuses 32V FA 1206 4A

0437004.WR
Littelfuse
1: $2.25
1,573In Stock
9,000On Order

Mfr. Part #
0437004.WR

Mouser Part #
576-0437004.WR

Littelfuse

Surface Mount Fuses 32V FA 1206 4A

Learn More

Datasheet

1,573In Stock

9,000On Order

Cut Tape

$2.25

$1.99

$1.89

$1.53

View

Reel

$0.904

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

4 A

32 VAC

32 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

22 mOhms

Surface Mount Fuses 32V FA 1206 8A

0437008.WR
Littelfuse
1: $2.39
1,485In Stock
9,000On Order

Mfr. Part #
0437008.WR

Mouser Part #
576-0437008.WR

Littelfuse

Surface Mount Fuses 32V FA 1206 8A

Learn More

Datasheet

1,485In Stock

9,000On Order

Cut Tape

$2.39

$2.16

$1.90

$1.60

View

Reel

$0.904

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

8 A

32 VAC

35 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

8.7 mOhms

Surface Mount Fuses 32V FA 1206 5A

0437005.WR
Littelfuse
1: $2.58
12,000On Order

Mfr. Part #
0437005.WR

Mouser Part #
576-0437005.WR

Littelfuse

Surface Mount Fuses 32V FA 1206 5A

Learn More

Datasheet

12,000On Order

Cut Tape

$2.58

$2.15

$2.03

$1.73

View

Reel

$0.904

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

437

Surface Mount Ceramic Fuses

Fast Blow

5 A

32 VAC

35 VDC

50 A, 50 A

1206 (3216 metric)

- 55 C

+ 150 C

Reel, Cut Tape, MouseReel

16 mOhms

Surface Mount Fuses FUSE 63V AUTOC FA 1206 .750A

0437.750KRA
Littelfuse
10,000: $1.01
Non-Stocked Lead-Time 21 Weeks

Mfr. Part #
0437.750KRA

Mouser Part #
576-0437.750KRA

Littelfuse

Surface Mount Fuses FUSE 63V AUTOC FA 1206 .750A

Datasheet

Non-Stocked Lead-Time 21 Weeks

Reel

$1.01

Min.: 10,000
Mult.: 10,000

: 10,000

437

Reel

Surface Mount Fuses FUSE 63V AUTOC FA 1206 2A

0437002.KRA
Littelfuse
10,000: $1.07
Non-Stocked Lead-Time 21 Weeks

Mfr. Part #
0437002.KRA

Mouser Part #
576-0437002.KRA

Littelfuse

Surface Mount Fuses FUSE 63V AUTOC FA 1206 2A

Datasheet

Non-Stocked Lead-Time 21 Weeks

Reel

$1.07

Min.: 10,000
Mult.: 10,000

: 10,000

437

Reel

Surface Mount Fuses 63V 1.75A FA 1206

04371.75WRP
Littelfuse
3,000: $1.07
Non-Stocked

Mfr. Part #
04371.75WRP

Mouser Part #
576-04371.75WRP

Littelfuse

Surface Mount Fuses 63V 1.75A FA 1206

Learn More

Datasheet

Non-Stocked

Reel

$1.07

Min.: 3,000
Mult.: 3,000

: 3,000

437

Surface Mount Fuses

Reel

437 Series SMT Fuses

Mouser®

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