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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 170V 5% Bi-Directional

1.5SMC170CA
Littelfuse
1: £0.917
692In Stock

Mfr. Part No.
1.5SMC170CA

Mouser Part No
576-1.5SMC170CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 170V 5% Bi-Directional

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Datasheet

692In Stock

Cut Tape

£0.917

£0.572

£0.376

£0.317

£0.282

Reel

£0.273

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 180V 5% Uni-Directional

1.5SMC180A
Littelfuse
1: £0.834
3,051In Stock
6,000Expected 17/08/2026

Mfr. Part No.
1.5SMC180A

Mouser Part No
576-1.5SMC180A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 180V 5% Uni-Directional

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Datasheet

3,051In Stock

6,000Expected 17/08/2026

Cut Tape

£0.834

£0.519

£0.34

£0.262

Reel

£0.202

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 180V 5% Bi-Directional

1.5SMC180CA
Littelfuse
1: £0.917
504In Stock
3,000Expected 13/08/2026

Mfr. Part No.
1.5SMC180CA

Mouser Part No
576-1.5SMC180CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 180V 5% Bi-Directional

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Datasheet

504In Stock

3,000Expected 13/08/2026

Cut Tape

£0.917

£0.572

£0.376

£0.292

£0.265

Reel

£0.221

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 18V 5% Uni-Directional

1.5SMC18A
Littelfuse
1: £0.811
17In Stock
12,000On Order

Mfr. Part No.
1.5SMC18A

Mouser Part No
576-1.5SMC18A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 18V 5% Uni-Directional

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Datasheet

17In Stock

12,000On Order

Cut Tape

£0.811

£0.485

£0.34

£0.293

£0.263

Reel

£0.183

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 200V 5% Uni-Directional

1.5SMC200A
Littelfuse
1: £0.803
3,787In Stock

Mfr. Part No.
1.5SMC200A

Mouser Part No
576-1.5SMC200A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 200V 5% Uni-Directional

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Datasheet

3,787In Stock

Cut Tape

£0.803

£0.497

£0.326

£0.251

£0.227

Reel

£0.182

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 200V 5% Bi-Directional

1.5SMC200CA
Littelfuse
1: £0.908
2,765In Stock

Mfr. Part No.
1.5SMC200CA

Mouser Part No
576-1.5SMC200CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 200V 5% Bi-Directional

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Datasheet

2,765In Stock

Cut Tape

£0.908

£0.571

£0.375

£0.292

Reel

£0.23

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC20CA
Littelfuse
1: £0.856
3,029In Stock

Mfr. Part No.
1.5SMC20CA

Mouser Part No
576-1.5SMC20CA

Littelfuse

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

Learn More

Datasheet

3,029In Stock

Cut Tape

£0.856

£0.533

£0.349

£0.271

£0.244

Reel

£0.189

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 22V 5% Bi-Directional

1.5SMC22CA
Littelfuse
1: £0.871
483In Stock
6,000On Order

Mfr. Part No.
1.5SMC22CA

Mouser Part No
576-1.5SMC22CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 22V 5% Bi-Directional

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Datasheet

483In Stock

6,000On Order

Cut Tape

£0.871

£0.543

£0.355

£0.271

£0.244

Reel

£0.189

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 24V 5% Uni-Directional

1.5SMC24A
Littelfuse
1: £0.811
4,015In Stock

Mfr. Part No.
1.5SMC24A

Mouser Part No
576-1.5SMC24A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 24V 5% Uni-Directional

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Datasheet

4,015In Stock

Cut Tape

£0.811

£0.464

£0.31

£0.244

Reel

£0.188

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Uni-Directional

1.5SMC250A
Littelfuse
1: £0.834
5,042In Stock
3,000Expected 13/08/2026

Mfr. Part No.
1.5SMC250A

Mouser Part No
576-1.5SMC250A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Uni-Directional

Learn More

Datasheet

5,042In Stock

3,000Expected 13/08/2026

Cut Tape

£0.834

£0.519

£0.34

£0.262

Reel

£0.202

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC27A
Littelfuse
1: £0.826
3,722In Stock
7,685On Order

Mfr. Part No.
1.5SMC27A

Mouser Part No
576-1.5SMC27A

Littelfuse

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

Learn More

Datasheet

3,722In Stock

7,685On Order

Cut Tape

£0.826

£0.47

£0.313

£0.246

£0.223

Reel

£0.18

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC27CA
Littelfuse
1: £0.803
3,279In Stock

Mfr. Part No.
1.5SMC27CA

Mouser Part No
576-1.5SMC27CA

Littelfuse

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

Learn More

Datasheet

3,279In Stock

Cut Tape

£0.803

£0.525

£0.344

£0.265

£0.241

Reel

£0.189

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC300A
Littelfuse
1: £1.10
1,500In Stock
9,000Expected 19/11/2026

Mfr. Part No.
1.5SMC300A

Mouser Part No
576-1.5SMC300A

Littelfuse

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

Learn More

Datasheet

1,500In Stock

9,000Expected 19/11/2026

Cut Tape

£1.10

£0.641

£0.457

£0.357

£0.325

Reel

£0.319

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC300CA
Littelfuse
1: £1.11
1,191In Stock
3,000Expected 11/03/2027

Mfr. Part No.
1.5SMC300CA

Mouser Part No
576-1.5SMC300CA

Littelfuse

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

Learn More

Datasheet

1,191In Stock

3,000Expected 11/03/2027

Cut Tape

£1.11

£0.698

£0.463

£0.362

£0.33

Reel

£0.279

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC30A
Littelfuse
1: £0.818
111In Stock
9,000On Order

Mfr. Part No.
1.5SMC30A

Mouser Part No
576-1.5SMC30A

Littelfuse

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

Learn More

Datasheet

111In Stock

9,000On Order

Cut Tape

£0.818

£0.485

£0.316

£0.273

£0.265

Reel

£0.18

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC30CA
Littelfuse
1: £0.78
5,031In Stock

Mfr. Part No.
1.5SMC30CA

Mouser Part No
576-1.5SMC30CA

Littelfuse

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

Learn More

Datasheet

5,031In Stock

Cut Tape

£0.78

£0.486

£0.318

£0.265

Reel

£0.19

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC33CA
Littelfuse
1: £0.803
2,007In Stock
3,000Expected 17/02/2027

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

2,007In Stock

3,000Expected 17/02/2027

Cut Tape

£0.803

£0.498

£0.327

£0.253

£0.229

Reel

£0.189

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC350CA
Littelfuse
1: £1.21
2,966In Stock
6,000Expected 03/02/2027

Mfr. Part No.
1.5SMC350CA

Mouser Part No
576-1.5SMC350CA

Littelfuse

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

Learn More

Datasheet

2,966In Stock

6,000Expected 03/02/2027

Cut Tape

£1.21

£0.766

£0.509

£0.399

£0.363

Reel

£0.293

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC39A
Littelfuse
1: £0.751
1,691In Stock
3,000Expected 13/08/2026

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

1,691In Stock

3,000Expected 13/08/2026

Cut Tape

£0.751

£0.486

£0.318

£0.244

£0.221

Reel

£0.18

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC39CA
Littelfuse
1: £0.78
3,776In 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

3,776In Stock

Cut Tape

£0.78

£0.459

£0.308

£0.243

£0.221

Reel

£0.189

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC400A
Littelfuse
1: £1.07
1,739In Stock
3,000Expected 22/10/2026

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

1,739In Stock

3,000Expected 22/10/2026

Cut Tape

£1.07

£0.678

£0.45

£0.373

£0.34

Reel

£0.298

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC43A
Littelfuse
1: £0.811
2,575In Stock
9,000On Order

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

2,575In Stock

9,000On Order

Cut Tape

£0.811

£0.462

£0.309

£0.244

£0.223

Reel

£0.18

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC440A
Littelfuse
1: £0.986
4,361In 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

4,361In Stock

Cut Tape

£0.986

£0.636

£0.428

£0.34

£0.308

Reel

£0.274

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC440CA
Littelfuse
1: £1.19
97In Stock
3,000Expected 08/09/2026

Mfr. Part No.
1.5SMC440CA

Mouser Part No
576-1.5SMC440CA

Littelfuse

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

Learn More

Datasheet

97In Stock

3,000Expected 08/09/2026

Cut Tape

£1.19

£0.751

£0.499

£0.392

£0.365

Reel

£0.293

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC47CA
Littelfuse
1: £0.841
4,093In Stock

Mfr. Part No.
1.5SMC47CA

Mouser Part No
576-1.5SMC47CA

Littelfuse

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

Learn More

Datasheet

4,093In Stock

Cut Tape

£0.841

£0.525

£0.344

£0.28

Reel

£0.209

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Auxiliary Power Supply

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Auxiliary Power Supply

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Circuit Protection

Semiconductors