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Auxiliary Power Supply

Littelfuse offers numerous products designed for Auxiliary Power Supply, including Silicon Carbide (SiC) MOSFETs, gate drivers, and TVS diodes. The LSIC1MO170T0750 SiC MOSFET is a 1700V device optimized for high-frequency, high-efficiency applications and features a low 11nC gate charge, low 11.5pF output capacitance, and a low 29Ω gate resistance for high-frequency switching. The IX4351NE gate driver offers an internal negative charge regulator, providing a selectable negative gate drive bias for improved dV/dt immunity and faster turn-off. The TVS diodes include the SMF and 1.5SMC series designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.

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Part #

ESD Protection Diodes / TVS Diodes 1.5kW 300V 5% Uni-Directional

1.5SMC300A
Littelfuse
1: $1.58
4,805In Stock

Mfr. Part #
1.5SMC300A

Mouser Part #
576-1.5SMC300A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 300V 5% Uni-Directional

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Datasheet

4,805In Stock

Cut Tape

$1.58

$1.02

$0.765

$0.596

Reel

$0.423

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 540V 5% Bi-Directional

1.5SMC540CA
Littelfuse
1: $1.25
4,466In Stock

Mfr. Part #
1.5SMC540CA

Mouser Part #
576-1.5SMC540CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 540V 5% Bi-Directional

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Datasheet

4,466In Stock

Cut Tape

$1.25

$1.16

$0.84

$0.609

Reel

$0.492

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 82V 5% Bi-Directional

1.5SMC82CA
Littelfuse
1: $0.648
20,118In Stock

Mfr. Part #
1.5SMC82CA

Mouser Part #
576-1.5SMC82CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 82V 5% Bi-Directional

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Datasheet

20,118In Stock

Cut Tape

$0.648

$0.539

$0.518

$0.469

Reel

$0.314

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 56V 5% Uni-Directional

1.5SMC56A
Littelfuse
1: $0.475
21,476In Stock

Mfr. Part #
1.5SMC56A

Mouser Part #
576-1.5SMC56A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 56V 5% Uni-Directional

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Datasheet

21,476In Stock

Cut Tape

$0.475

$0.397

$0.33

Reel

$0.33

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 10V 5% Bi-Directional

1.5SMC10CA
Littelfuse
1: $0.533
5,930In Stock

Mfr. Part #
1.5SMC10CA

Mouser Part #
576-1.5SMC10CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 10V 5% Bi-Directional

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Datasheet

5,930In Stock

Cut Tape

$0.533

$0.526

$0.475

$0.442

Reel

$0.315

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 530V 5% Bi-Directional

1.5SMC530CA
Littelfuse
1: $1.25
2,966In Stock
3,000Expected 2026-08-06

Mfr. Part #
1.5SMC530CA

Mouser Part #
576-1.5SMC530CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 530V 5% Bi-Directional

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Datasheet

2,966In Stock

3,000Expected 2026-08-06

Cut Tape

$1.25

$0.986

$0.759

$0.609

$0.575

Reel

$0.478

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 30V 5% Bi-Directional

1.5SMC30CA
Littelfuse
1: $0.706
5,111In Stock

Mfr. Part #
1.5SMC30CA

Mouser Part #
576-1.5SMC30CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 30V 5% Bi-Directional

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Datasheet

5,111In Stock

Cut Tape

$0.706

$0.541

$0.477

$0.376

Reel

$0.338

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 47V 5% Bi-Directional

1.5SMC47CA
Littelfuse
1: $0.59
4,849In Stock

Mfr. Part #
1.5SMC47CA

Mouser Part #
576-1.5SMC47CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 47V 5% Bi-Directional

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Datasheet

4,849In Stock

Cut Tape

$0.59

$0.528

$0.459

$0.458

Reel

$0.336

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 9.1V 5% Bi-Directional

1.5SMC9.1CA
Littelfuse
1: $0.662
4,889In Stock

Mfr. Part #
1.5SMC9.1CA

Mouser Part #
576-1.5SMC9.1CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 9.1V 5% Bi-Directional

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Datasheet

4,889In Stock

Cut Tape

$0.662

$0.639

$0.566

$0.465

Reel

$0.317

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 100V 5% Uni-Directional

1.5SMC100A
Littelfuse
1: $0.562
3,904In Stock

Mfr. Part #
1.5SMC100A

Mouser Part #
576-1.5SMC100A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 100V 5% Uni-Directional

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Datasheet

3,904In Stock

Cut Tape

$0.562

$0.514

$0.439

$0.387

Reel

$0.30

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 16V 5% Uni-Directional

1.5SMC16A
Littelfuse
1: $0.446
5,146In Stock

Mfr. Part #
1.5SMC16A

Mouser Part #
576-1.5SMC16A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 16V 5% Uni-Directional

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Datasheet

5,146In Stock

Cut Tape

$0.446

$0.423

$0.416

$0.408

Reel

$0.317

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 20V 5% Uni-Directional

1.5SMC20A
Littelfuse
1: $0.518
4,282In Stock

Mfr. Part #
1.5SMC20A

Mouser Part #
576-1.5SMC20A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 20V 5% Uni-Directional

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Datasheet

4,282In Stock

Cut Tape

$0.518

$0.386

$0.353

Reel

$0.298

$0.292

$0.288

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 200W 58V 5% Uni-directional

SMF58A
Littelfuse
1: $0.547
10,040In Stock

Mfr. Part #
SMF58A

Mouser Part #
576-SMF58A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 58V 5% Uni-directional

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Datasheet

10,040In Stock

Cut Tape

$0.547

$0.337

$0.164

Reel

$0.117

$0.108

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 7.5V 5% Bi-Directional

1.5SMC7.5CA
Littelfuse
1: $0.677
3,472In Stock

Mfr. Part #
1.5SMC7.5CA

Mouser Part #
576-1.5SMC7.5CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 7.5V 5% Bi-Directional

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Datasheet

3,472In Stock

Cut Tape

$0.677

$0.626

$0.546

$0.438

Reel

$0.341

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 110V 5% Uni-Directional

1.5SMC110A
Littelfuse
1: $1.45
6,478In Stock

Mfr. Part #
1.5SMC110A

Mouser Part #
576-1.5SMC110A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 110V 5% Uni-Directional

Learn More

Datasheet

6,478In Stock

Cut Tape

$1.45

$0.913

$0.598

$0.462

Reel

$0.36

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 350V 5% Uni-Directional

1.5SMC350A
Littelfuse
1: $1.81
6,963In Stock

Mfr. Part #
1.5SMC350A

Mouser Part #
576-1.5SMC350A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 350V 5% Uni-Directional

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Datasheet

6,963In Stock

Cut Tape

$1.81

$1.21

$0.801

$0.625

Reel

$0.497

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 510V 5% Bi-Directional

1.5SMC510CA
Littelfuse
1: $2.04
5,675In Stock

Mfr. Part #
1.5SMC510CA

Mouser Part #
576-1.5SMC510CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 510V 5% Bi-Directional

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Datasheet

5,675In Stock

Cut Tape

$2.04

$1.29

$0.854

$0.668

$0.608

Reel

$0.536

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 550V 5% Bi-Directional

1.5SMC550CA
Littelfuse
1: $1.15
5,521In Stock
12,000On Order

Mfr. Part #
1.5SMC550CA

Mouser Part #
576-1.5SMC550CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 550V 5% Bi-Directional

Learn More

Datasheet

5,521In Stock

12,000On Order

Cut Tape

$1.15

$0.884

$0.667

$0.575

Reel

$0.536

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 15V

SMF15CA
Littelfuse
1: $0.576
40,133In Stock

Mfr. Part #
SMF15CA

Mouser Part #
576-SMF15CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 15V

Learn More

Datasheet

40,133In Stock

Cut Tape

$0.576

$0.39

$0.184

Reel

$0.143

$0.141

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 20V

SMF20CA
Littelfuse
1: $0.691
38,295In Stock

Mfr. Part #
SMF20CA

Mouser Part #
576-SMF20CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 20V

Learn More

Datasheet

38,295In Stock

Cut Tape

$0.691

$0.482

$0.219

$0.213

Reel

$0.167

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 200W 26V 5% Uni-directional

SMF26A
Littelfuse
1: $0.36
31,366In Stock

Mfr. Part #
SMF26A

Mouser Part #
576-SMF26A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 26V 5% Uni-directional

Learn More

Datasheet

31,366In Stock

Cut Tape

$0.36

$0.228

$0.223

$0.209

Reel

$0.134

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 30V

SMF30CA
Littelfuse
1: $0.792
23,581In Stock
15,000Expected 2026-08-17

Mfr. Part #
SMF30CA

Mouser Part #
576-SMF30CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 30V

Learn More

Datasheet

23,581In Stock

15,000Expected 2026-08-17

Cut Tape

$0.792

$0.482

$0.307

$0.246

Reel

$0.161

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 200W 40V 5% Uni-directional

SMF40A
Littelfuse
1: $0.648
28,753In Stock

Mfr. Part #
SMF40A

Mouser Part #
576-SMF40A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 40V 5% Uni-directional

Learn More

Datasheet

28,753In Stock

Cut Tape

$0.648

$0.344

$0.207

$0.196

Reel

$0.141

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 40V

SMF40CA
Littelfuse
1: $0.331
26,930In Stock

Mfr. Part #
SMF40CA

Mouser Part #
576-SMF40CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 40V

Learn More

Datasheet

26,930In Stock

Cut Tape

$0.331

$0.281

$0.269

$0.239

Reel

$0.171

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 200W 45V 5% Uni-directional

SMF45A
Littelfuse
1: $0.49
32,460In Stock

Mfr. Part #
SMF45A

Mouser Part #
576-SMF45A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 45V 5% Uni-directional

Learn More

Datasheet

32,460In Stock

Cut Tape

$0.49

$0.307

$0.181

$0.157

Reel

$0.128

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Auxiliary Power Supply

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Auxiliary Power Supply

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