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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: £0.39
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

£0.39

£0.296

£0.201

£0.184

Reel

£0.172

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC27CA
Littelfuse
1: £0.803
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

£0.803

£0.505

£0.33

£0.255

Reel

£0.20

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: £0.271
1,393In Stock
3,000Expected 07/05/2026

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 07/05/2026

Cut Tape

£0.271

£0.222

£0.18

£0.172

Reel

£0.172

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC33A
Littelfuse
1: £0.30
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

£0.30

£0.233

£0.18

£0.172

Reel

£0.172

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC33CA
Littelfuse
1: £0.308
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

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Datasheet

3,232In Stock

Cut Tape

£0.308

£0.247

£0.201

£0.185

£0.184

Reel

£0.18

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC350CA
Littelfuse
1: £1.07
2,021In Stock
3,000Expected 20/04/2026

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 20/04/2026

Cut Tape

£1.07

£0.67

£0.445

£0.355

£0.324

Reel

£0.279

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC36A
Littelfuse
1: £0.278
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

£0.278

£0.203

£0.185

£0.171

£0.169

Reel

£0.169

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC36CA
Littelfuse
1: £0.788
2,052In Stock
3,000Expected 01/04/2026

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 01/04/2026

Cut Tape

£0.788

£0.495

£0.316

£0.25

Reel

£0.196

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: £0.698
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

£0.698

£0.435

£0.283

£0.217

£0.201

Reel

£0.172

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC39CA
Littelfuse
1: £0.271
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

£0.271

£0.225

£0.185

Reel

£0.18

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC400A
Littelfuse
1: £0.503
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

£0.503

£0.478

£0.433

£0.342

£0.306

Reel

£0.283

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC400CA
Littelfuse
1: £0.436
1,935In Stock
3,000Expected 19/03/2026

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 19/03/2026

Cut Tape

£0.436

£0.302

£0.299

Reel

£0.279

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC43A
Littelfuse
1: £0.39
1,826In Stock
3,000Expected 19/02/2026

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 19/02/2026

Cut Tape

£0.39

£0.309

£0.226

£0.19

£0.184

Reel

£0.172

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC43CA
Littelfuse
1: £0.496
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

£0.496

£0.362

£0.249

£0.196

£0.18

Reel

£0.18

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC440A
Littelfuse
1: £0.578
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

£0.578

£0.413

£0.31

£0.276

Reel

£0.259

£0.258

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC47A
Littelfuse
1: £0.766
300In Stock
5,695Expected 22/05/2026

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 22/05/2026

Cut Tape

£0.766

£0.48

£0.313

£0.243

Reel

£0.19

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: £0.263
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

£0.263

£0.249

£0.232

£0.227

£0.207

Reel

£0.163

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC530A
Littelfuse
1: £0.705
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

£0.705

£0.597

£0.414

£0.332

£0.306

Reel

£0.283

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC540A
Littelfuse
1: £0.882
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

£0.882

£0.63

£0.417

£0.326

£0.306

Reel

£0.283

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC550A
Littelfuse
1: £0.691
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

£0.691

£0.597

£0.414

£0.326

£0.294

Reel

£0.283

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC62A
Littelfuse
1: £0.21
2,477In Stock
3,000Expected 19/03/2026

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 19/03/2026

Cut Tape

£0.21

£0.183

£0.172

Reel

£0.172

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC62CA
Littelfuse
1: £0.338
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

£0.338

£0.303

£0.25

£0.228

Reel

£0.163

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC68A
Littelfuse
1: £0.368
2,135In Stock
3,000Expected 11/05/2026

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 11/05/2026

Cut Tape

£0.368

£0.268

£0.219

£0.193

£0.18

Reel

£0.172

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

1.5SMC68CA
Littelfuse
1: £0.18
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

£0.18

Reel

£0.18

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: £0.315
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

£0.315

£0.261

£0.207

£0.201

£0.195

Reel

£0.172

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