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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 27V 5% Uni-Directional

1.5SMC27A
Littelfuse
1: $0.52
5,655In Stock

Mfr. Part No.
1.5SMC27A

Mouser Part No
576-1.5SMC27A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 27V 5% Uni-Directional

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Datasheet

5,655In Stock

Cut Tape

$0.52

$0.394

$0.267

$0.245

Reel

$0.229

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 27V 5% Bi-Directional

1.5SMC27CA
Littelfuse
1: $1.07
4,249In Stock

Mfr. Part No.
1.5SMC27CA

Mouser Part No
576-1.5SMC27CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 27V 5% Bi-Directional

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Datasheet

4,249In Stock

Cut Tape

$1.07

$0.672

$0.44

$0.34

Reel

$0.266

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC30A
Littelfuse
1: $0.361
1,393In Stock
3,000Expected 2026/05/07

Mfr. Part No.
1.5SMC30A

Mouser Part No
576-1.5SMC30A

Littelfuse

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

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Datasheet

1,393In Stock

3,000Expected 2026/05/07

Cut Tape

$0.361

$0.295

$0.24

$0.229

Reel

$0.229

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 33V 5% Uni-Directional

1.5SMC33A
Littelfuse
1: $0.40
3,201In Stock

Mfr. Part No.
1.5SMC33A

Mouser Part No
576-1.5SMC33A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 33V 5% Uni-Directional

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Datasheet

3,201In Stock

Cut Tape

$0.40

$0.311

$0.24

$0.229

Reel

$0.229

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 33V 5% Bi-Directional

1.5SMC33CA
Littelfuse
1: $0.411
3,232In Stock

Mfr. Part No.
1.5SMC33CA

Mouser Part No
576-1.5SMC33CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 33V 5% Bi-Directional

Learn More

Datasheet

3,232In Stock

Cut Tape

$0.411

$0.329

$0.267

$0.247

$0.245

Reel

$0.24

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC350CA
Littelfuse
1: $1.42
2,021In Stock
3,000Expected 2026/04/20

Mfr. Part No.
1.5SMC350CA

Mouser Part No
576-1.5SMC350CA

Littelfuse

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

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Datasheet

2,021In Stock

3,000Expected 2026/04/20

Cut Tape

$1.42

$0.893

$0.593

$0.473

$0.431

Reel

$0.372

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 36V 5% Uni-Directional

1.5SMC36A
Littelfuse
1: $0.37
5,909In Stock

Mfr. Part No.
1.5SMC36A

Mouser Part No
576-1.5SMC36A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 36V 5% Uni-Directional

Learn More

Datasheet

5,909In Stock

Cut Tape

$0.37

$0.27

$0.247

$0.228

$0.226

Reel

$0.226

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 36V 5% Bi-Directional

1.5SMC36CA
Littelfuse
1: $1.05
2,052In Stock
3,000Expected 2026/04/01

Mfr. Part No.
1.5SMC36CA

Mouser Part No
576-1.5SMC36CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 36V 5% Bi-Directional

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Datasheet

2,052In Stock

3,000Expected 2026/04/01

Cut Tape

$1.05

$0.659

$0.421

$0.333

Reel

$0.261

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 39V 5% Uni-Directional

1.5SMC39A
Littelfuse
1: $0.93
3,294In Stock

Mfr. Part No.
1.5SMC39A

Mouser Part No
576-1.5SMC39A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 39V 5% Uni-Directional

Learn More

Datasheet

3,294In Stock

Cut Tape

$0.93

$0.579

$0.377

$0.29

$0.267

Reel

$0.229

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 39V 5% Bi-Directional

1.5SMC39CA
Littelfuse
1: $0.361
3,723In Stock

Mfr. Part No.
1.5SMC39CA

Mouser Part No
576-1.5SMC39CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 39V 5% Bi-Directional

Learn More

Datasheet

3,723In Stock

Cut Tape

$0.361

$0.30

$0.247

Reel

$0.24

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 400V 5% Uni-Directional

1.5SMC400A
Littelfuse
1: $0.67
3,497In Stock

Mfr. Part No.
1.5SMC400A

Mouser Part No
576-1.5SMC400A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 400V 5% Uni-Directional

Learn More

Datasheet

3,497In Stock

Cut Tape

$0.67

$0.636

$0.577

$0.456

$0.408

Reel

$0.377

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 400V 5% Bi-Directional

1.5SMC400CA
Littelfuse
1: $0.58
1,935In Stock
3,000Expected 2026/03/19

Mfr. Part No.
1.5SMC400CA

Mouser Part No
576-1.5SMC400CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 400V 5% Bi-Directional

Learn More

Datasheet

1,935In Stock

3,000Expected 2026/03/19

Cut Tape

$0.58

$0.402

$0.399

Reel

$0.372

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 43V 5% Uni-Directional

1.5SMC43A
Littelfuse
1: $0.52
1,826In Stock
3,000Expected 2026/02/19

Mfr. Part No.
1.5SMC43A

Mouser Part No
576-1.5SMC43A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 43V 5% Uni-Directional

Learn More

Datasheet

1,826In Stock

3,000Expected 2026/02/19

Cut Tape

$0.52

$0.412

$0.301

$0.254

$0.245

Reel

$0.229

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 43V 5% Bi-Directional

1.5SMC43CA
Littelfuse
1: $0.661
4,572In Stock

Mfr. Part No.
1.5SMC43CA

Mouser Part No
576-1.5SMC43CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 43V 5% Bi-Directional

Learn More

Datasheet

4,572In Stock

Cut Tape

$0.661

$0.483

$0.331

$0.261

$0.24

Reel

$0.24

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 440V 5% Uni-Directional

1.5SMC440A
Littelfuse
1: $0.77
3,906In Stock

Mfr. Part No.
1.5SMC440A

Mouser Part No
576-1.5SMC440A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 440V 5% Uni-Directional

Learn More

Datasheet

3,906In Stock

Cut Tape

$0.77

$0.55

$0.413

$0.368

Reel

$0.345

$0.343

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC47A
Littelfuse
1: $1.02
300In Stock
5,695Expected 2026/05/22

Mfr. Part No.
1.5SMC47A

Mouser Part No
576-1.5SMC47A

Littelfuse

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

Learn More

Datasheet

300In Stock

5,695Expected 2026/05/22

Cut Tape

$1.02

$0.64

$0.418

$0.323

Reel

$0.254

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 51V 5% Bi-Directional

1.5SMC51CA
Littelfuse
1: $0.35
3,050In Stock

Mfr. Part No.
1.5SMC51CA

Mouser Part No
576-1.5SMC51CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 51V 5% Bi-Directional

Learn More

Datasheet

3,050In Stock

Cut Tape

$0.35

$0.331

$0.309

$0.302

$0.276

Reel

$0.217

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC530A
Littelfuse
1: $0.94
1,086In Stock

Mfr. Part No.
1.5SMC530A

Mouser Part No
576-1.5SMC530A

Littelfuse

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

Learn More

Datasheet

1,086In Stock

Cut Tape

$0.94

$0.795

$0.551

$0.442

$0.407

Reel

$0.377

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC540A
Littelfuse
1: $1.17
1,349In Stock

Mfr. Part No.
1.5SMC540A

Mouser Part No
576-1.5SMC540A

Littelfuse

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

Learn More

Datasheet

1,349In Stock

Cut Tape

$1.17

$0.84

$0.556

$0.434

$0.408

Reel

$0.377

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC550A
Littelfuse
1: $0.92
2,616In Stock

Mfr. Part No.
1.5SMC550A

Mouser Part No
576-1.5SMC550A

Littelfuse

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

Learn More

Datasheet

2,616In Stock

Cut Tape

$0.92

$0.795

$0.551

$0.434

$0.392

Reel

$0.377

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 62V 5% Uni-Directional

1.5SMC62A
Littelfuse
1: $0.28
2,477In Stock
3,000Expected 2026/03/19

Mfr. Part No.
1.5SMC62A

Mouser Part No
576-1.5SMC62A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 62V 5% Uni-Directional

Learn More

Datasheet

2,477In Stock

3,000Expected 2026/03/19

Cut Tape

$0.28

$0.244

$0.229

Reel

$0.229

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 62V 5% Bi-Directional

1.5SMC62CA
Littelfuse
1: $0.45
2,754In Stock

Mfr. Part No.
1.5SMC62CA

Mouser Part No
576-1.5SMC62CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 62V 5% Bi-Directional

Learn More

Datasheet

2,754In Stock

Cut Tape

$0.45

$0.404

$0.333

$0.304

Reel

$0.217

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 68V 5% Uni-Directional

1.5SMC68A
Littelfuse
1: $0.49
2,135In Stock
3,000Expected 2026/05/11

Mfr. Part No.
1.5SMC68A

Mouser Part No
576-1.5SMC68A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 68V 5% Uni-Directional

Learn More

Datasheet

2,135In Stock

3,000Expected 2026/05/11

Cut Tape

$0.49

$0.357

$0.292

$0.257

$0.24

Reel

$0.229

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 68V 5% Bi-Directional

1.5SMC68CA
Littelfuse
1: $0.24
3,365In Stock

Mfr. Part No.
1.5SMC68CA

Mouser Part No
576-1.5SMC68CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 68V 5% Bi-Directional

Learn More

Datasheet

3,365In Stock

Cut Tape

$0.24

Reel

$0.24

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC7.5A
Littelfuse
1: $0.42
2,383In Stock

Mfr. Part No.
1.5SMC7.5A

Mouser Part No
576-1.5SMC7.5A

Littelfuse

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

Learn More

Datasheet

2,383In Stock

Cut Tape

$0.42

$0.348

$0.276

$0.267

$0.259

Reel

$0.229

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Auxiliary Power Supply

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Auxiliary Power Supply

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Circuit Protection

Semiconductors