ESD Protection Diodes / TVS Diodes

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SMF4L 400W Surface Mount Diodes

Littelfuse SMF4L 400W Surface Mount Diodes consist of a SOD-123FL small and flat lead low-profile package designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. The SMF4L features 400W peak pulse power capability at 10/1000µs waveform with a repetition rate (duty cycle) of 0.1%. The diodes are compatible with industrial standard package SOD-123FL and offer a low inductance with excellent clamping capability in a low profile package of 0.98 maximum height.

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Part #

ESD Protection Diodes / TVS Diodes 400W 8V 5% Uni-directional

SMF4L8.0A
Littelfuse
1: $0.68
2,798In Stock

Mfr. Part No.
SMF4L8.0A

Mouser Part No
576-SMF4L8.0A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 8V 5% Uni-directional

Learn More

Datasheet

2,798In Stock

Cut Tape

$0.68

$0.358

$0.272

$0.227

Reel

$0.148

$0.133

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

8 V

SMD/SMT

13.6 V

8.89 V

SOD-123-2

27.2 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

AEC-Q100

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes 400W 85V 5% Uni-directional

SMF4L85A
Littelfuse
1: $0.748
4,465In Stock

Mfr. Part No.
SMF4L85A

Mouser Part No
576-SMF4L85A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 85V 5% Uni-directional

Learn More

Datasheet

4,465In Stock

Cut Tape

$0.748

$0.462

$0.301

$0.235

Reel

$0.171

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

85 V

SMD/SMT

137 V

94.4 V

SOD-123-2

2.9 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

AEC-Q100

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes 400W 9V 5% Uni-directional

SMF4L9.0A
Littelfuse
1: $0.694
3,926In Stock

Mfr. Part No.
SMF4L9.0A

Mouser Part No
576-SMF4L9.0A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 9V 5% Uni-directional

Learn More

Datasheet

3,926In Stock

Cut Tape

$0.694

$0.358

$0.275

$0.227

Reel

$0.166

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

9 V

SMD/SMT

15.4 V

10 V

SOD-123-2

26.4 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

AEC-Q100

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes SMF4L - CA 10V

SMF4L9.0CA
Littelfuse
1: $0.843
289In Stock
6,000Expected 20/8/2026

Mfr. Part No.
SMF4L9.0CA

Mouser Part No
576-SMF4L9.0CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF4L - CA 10V

Learn More

Datasheet

289In Stock

6,000Expected 20/8/2026

Cut Tape

$0.843

$0.392

$0.33

$0.26

Reel

$0.163

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Bidirectional

1 Channel

9 V

SMD/SMT

15.4 V

10 V

SOD-123-2

26.4 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes SMF4L - CA 14V

SMF4L14CA
Littelfuse
1: $0.694
47,650Expected 5/10/2026

Mfr. Part No.
SMF4L14CA

Mouser Part No
576-SMF4L14CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF4L - CA 14V

Learn More

Datasheet

47,650Expected 5/10/2026

Cut Tape

$0.694

$0.392

$0.31

$0.26

Reel

$0.163

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Bidirectional

1 Channel

14 V

SMD/SMT

23.2 V

15.6 V

SOD-123-2

17.2 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes 400W 17V 5% Uni-directional

SMF4L17A
Littelfuse
1: $0.748
23,972On Order

Mfr. Part No.
SMF4L17A

Mouser Part No
576-SMF4L17A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 17V 5% Uni-directional

Learn More

Datasheet

23,972On Order

Cut Tape

$0.748

$0.462

$0.294

$0.235

Reel

$0.148

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

17 V

SMD/SMT

27.6 V

18.9 V

SOD-123-2

14.5 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes SMF4L - CA 18V

SMF4L18CA
Littelfuse
1: $0.87
8,967On Order

Mfr. Part No.
SMF4L18CA

Mouser Part No
576-SMF4L18CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF4L - CA 18V

Learn More

Datasheet

8,967On Order

Cut Tape

$0.87

$0.415

$0.34

$0.265

Reel

$0.163

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Bidirectional

1 Channel

18 V

SMD/SMT

29.2 V

20 V

SOD-123-2

13.7 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes 400W 22V 5% Uni-directional

SMF4L22A
Littelfuse
1: $0.748
7,190On Order

Mfr. Part No.
SMF4L22A

Mouser Part No
576-SMF4L22A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 22V 5% Uni-directional

Learn More

Datasheet

7,190On Order

Cut Tape

$0.748

$0.462

$0.294

$0.235

Reel

$0.166

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

22 V

SMD/SMT

35.5 V

24.4 V

SOD-123-2

11.3 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes SMF4L - CA 43V

SMF4L43CA
Littelfuse
1: $0.843
8,994On Order

Mfr. Part No.
SMF4L43CA

Mouser Part No
576-SMF4L43CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF4L - CA 43V

Learn More

Datasheet

8,994On Order

Cut Tape

$0.843

$0.517

$0.33

$0.26

Reel

$0.163

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Bidirectional

1 Channel

43 V

SMD/SMT

69.4 V

47.8 V

SOD-123-2

5.8 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes 400W 11V 5% Uni-directional

SMF4L11A
Littelfuse
1: $0.748
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L11A

Mouser Part No
576-SMF4L11A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 11V 5% Uni-directional

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.748

$0.462

$0.294

$0.235

Reel

$0.165

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

11 V

SMD/SMT

18.2 V

12.2 V

SOD-123-2

22 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

AEC-Q100

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes SMF4L - A 120V

SMF4L120A
Littelfuse
1: $0.816
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L120A

Mouser Part No
576-SMF4L120A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF4L - A 120V

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.816

$0.50

$0.32

$0.265

Reel

$0.182

View

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

120 V

SMD/SMT

193 V

133 V

SOD-123-2

1 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape

ESD Protection Diodes / TVS Diodes SMF4L - A 130V

SMF4L130A
Littelfuse
1: $0.816
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L130A

Mouser Part No
576-SMF4L130A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF4L - A 130V

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.816

$0.50

$0.32

$0.265

Reel

$0.182

View

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

130 V

SMD/SMT

209 V

144 V

SOD-123-2

1 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape

ESD Protection Diodes / TVS Diodes SMF4L - A 150V

SMF4L150A
Littelfuse
1: $0.816
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L150A

Mouser Part No
576-SMF4L150A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF4L - A 150V

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.816

$0.50

$0.32

$0.265

Reel

$0.182

View

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

150 V

SMD/SMT

243 V

167 V

SOD-123-2

800 mA

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape

ESD Protection Diodes / TVS Diodes SMF4L - A 170V

SMF4L170A
Littelfuse
1: $0.816
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L170A

Mouser Part No
576-SMF4L170A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF4L - A 170V

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.816

$0.50

$0.32

$0.265

Reel

$0.182

View

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

170 V

SMD/SMT

275 V

189 V

SOD-123-2

700 mA

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape

ESD Protection Diodes / TVS Diodes SMF4L - A 188V

SMF4L188A
Littelfuse
1: $0.816
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L188A

Mouser Part No
576-SMF4L188A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF4L - A 188V

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.816

$0.50

$0.32

$0.265

Reel

$0.182

View

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

188 V

SMD/SMT

304 V

209 V

SOD-123-2

700 mA

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape

ESD Protection Diodes / TVS Diodes SMF4L - A 200V

SMF4L200A
Littelfuse
1: $0.816
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L200A

Mouser Part No
576-SMF4L200A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF4L - A 200V

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.816

$0.50

$0.32

$0.265

Reel

$0.182

View

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

200 V

SMD/SMT

324 V

224 V

SOD-123-2

600 mA

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape

ESD Protection Diodes / TVS Diodes SMF4L - A 220V

SMF4L220A
Littelfuse
1: $0.816
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L220A

Mouser Part No
576-SMF4L220A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF4L - A 220V

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.816

$0.50

$0.32

$0.265

Reel

$0.182

View

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

220 V

SMD/SMT

356 V

246 V

SOD-123-2

600 mA

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape

ESD Protection Diodes / TVS Diodes SMF4L - A 250V

SMF4L250A
Littelfuse
1: $0.816
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L250A

Mouser Part No
576-SMF4L250A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF4L - A 250V

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.816

$0.50

$0.32

$0.265

Reel

$0.182

View

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

250 V

SMD/SMT

405 V

279 V

SOD-123-2

500 mA

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape

ESD Protection Diodes / TVS Diodes 400W 45V 5% Uni-directional

SMF4L45A
Littelfuse
1: $0.598
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L45A

Mouser Part No
576-SMF4L45A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 45V 5% Uni-directional

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.598

$0.381

$0.305

$0.296

Reel

$0.165

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

45 V

SMD/SMT

72.7 V

50 V

SOD-123-2

5.5 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes 400W 6.5V 5% Uni-directional

SMF4L6.5A
Littelfuse
1: $0.666
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L6.5A

Mouser Part No
576-SMF4L6.5A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 6.5V 5% Uni-directional

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.666

$0.422

$0.294

$0.23

Reel

$0.165

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

6.5 V

SMD/SMT

11.2 V

7.22 V

SOD-123-2

33.1 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

AEC-Q100

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes 400W 75V 5% Uni-directional

SMF4L75A
Littelfuse
1: $0.666
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L75A

Mouser Part No
576-SMF4L75A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 75V 5% Uni-directional

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.666

$0.422

$0.294

$0.23

Reel

$0.165

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

75 V

SMD/SMT

121 V

83.3 V

SOD-123-2

3.3 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

AEC-Q100

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes 400W 78V 5% Uni-directional

SMF4L78A
Littelfuse
1: $0.598
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L78A

Mouser Part No
576-SMF4L78A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 78V 5% Uni-directional

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.598

$0.382

$0.253

$0.207

Reel

$0.165

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Unidirectional

126 V

95.8 V

3.2 A

400 W

+ 150 C

TVS Diodes

SMF4L

AEC-Q100

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes 400W 8.5V 5% Uni-directional

SMF4L8.5A
Littelfuse
1: $0.666
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L8.5A

Mouser Part No
576-SMF4L8.5A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 8.5V 5% Uni-directional

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.666

$0.422

$0.294

$0.23

Reel

$0.163

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

8.5 V

SMD/SMT

14.4 V

9.44 V

SOD-123-2

25.7 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

AEC-Q100

Reel, Cut Tape, MouseReel

ESD Protection Diodes / TVS Diodes SMF4L - A 90V

SMF4L90A
Littelfuse
1: $0.748
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
SMF4L90A

Mouser Part No
576-SMF4L90A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF4L - A 90V

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Cut Tape

$0.748

$0.462

$0.294

$0.235

Reel

$0.162

View

Min.: 1
Mult.: 1

: 3,000

Unidirectional

1 Channel

90 V

SMD/SMT

146 V

100 V

SOD-123-2

1.4 A

400 W

30 kV

- 55 C

+ 150 C

TVS Diodes

SMF4L

Reel, Cut Tape

SMF4L 400W Surface Mount Diodes

Customer Service Office

Company

Resources

Support

5 V
6 V
6.5 V
7.5 V
8 V
8.5 V
9 V
10 V
11 V
12 V
13 V
14 V
15 V
16 V
17 V
18 V
20 V
22 V
24 V
26 V

9.2 V
10.3 V
11.2 V
12 V
12.9 V
13.6 V
14.4 V
15.4 V
17 V
18.2 V
19.9 V
21.5 V
23.2 V
24.4 V
26 V
27.6 V
29.2 V
32.4 V
35.5 V
38.9 V

6.4 V
6.67 V
7.22 V
8.33 V
8.6 V
8.89 V
9.44 V
10 V
11.1 V
12.2 V
13.3 V
14.4 V
15.6 V
16.7 V
17.8 V
18.9 V
20 V
22.2 V
24.4 V
26.7 V

500 mA
600 mA
700 mA
800 mA
1 A
1.1 A
1.2 A
1.4 A
2.9 A
3.2 A
3.3 A
3.5 A
3.9 A
4.1 A
4.3 A
4.6 A
4.9 A
5.2 A
5.5 A
5.8 A