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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 440V 5% Bi-Directional

1.5SMC440CA
Littelfuse
1: Rp28.987
83In 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

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Datasheet

83In Stock

3.000Expected 08/09/2026

Cut Tape

Rp28.987

Rp15.924

Rp11.173

Rp9.558

Reel

Rp7.173

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC47CA
Littelfuse
1: Rp20.914
4.089In Stock

Mfr. Part No.
1.5SMC47CA

Mouser Part No
576-1.5SMC47CA

Littelfuse

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

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Datasheet

4.089In Stock

Cut Tape

Rp20.914

Rp9.815

Rp8.402

Rp6.843

Reel

Rp5.100

Rp4.623

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC510A
Littelfuse
1: Rp24.217
1.426In Stock
3.000Expected 20/08/2026

Mfr. Part No.
1.5SMC510A

Mouser Part No
576-1.5SMC510A

Littelfuse

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

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Datasheet

1.426In Stock

3.000Expected 20/08/2026

Cut Tape

Rp24.217

Rp12.861

Rp10.439

Rp8.311

Rp7.852

Reel

Rp6.605

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC510CA
Littelfuse
1: Rp28.253
3.455In Stock

Mfr. Part No.
1.5SMC510CA

Mouser Part No
576-1.5SMC510CA

Littelfuse

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

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Datasheet

3.455In Stock

Cut Tape

Rp28.253

Rp13.704

Rp11.815

Rp9.265

Rp8.788

Reel

Rp7.173

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC51A
Littelfuse
1: Rp20.181
2.984In Stock
3.000Expected 13/10/2026

Mfr. Part No.
1.5SMC51A

Mouser Part No
576-1.5SMC51A

Littelfuse

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

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Datasheet

2.984In Stock

3.000Expected 13/10/2026

Cut Tape

Rp20.181

Rp9.448

Rp8.201

Rp6.348

Rp6.017

Reel

Rp4.403

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC530A
Littelfuse
1: Rp26.235
3.526In Stock

Mfr. Part No.
1.5SMC530A

Mouser Part No
576-1.5SMC530A

Littelfuse

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

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Datasheet

3.526In Stock

Cut Tape

Rp26.235

Rp12.861

Rp10.934

Rp9.118

Reel

Rp6.605

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC540A
Littelfuse
1: Rp25.501
1.098In Stock
3.000Expected 14/09/2026

Mfr. Part No.
1.5SMC540A

Mouser Part No
576-1.5SMC540A

Littelfuse

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

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Datasheet

1.098In Stock

3.000Expected 14/09/2026

Cut Tape

Rp25.501

Rp16.016

Rp10.622

Rp8.311

Rp7.540

Reel

Rp6.605

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC550A
Littelfuse
1: Rp27.336
3.000In Stock
3.000Expected 08/10/2026

Mfr. Part No.
1.5SMC550A

Mouser Part No
576-1.5SMC550A

Littelfuse

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

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Datasheet

3.000In Stock

3.000Expected 08/10/2026

Cut Tape

Rp27.336

Rp15.227

Rp11.796

Rp9.558

Rp8.953

Reel

Rp6.605

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC56CA
Littelfuse
1: Rp20.548
3.942In Stock
9.000Expected 13/10/2026

Mfr. Part No.
1.5SMC56CA

Mouser Part No
576-1.5SMC56CA

Littelfuse

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

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Datasheet

3.942In Stock

9.000Expected 13/10/2026

Cut Tape

Rp20.548

Rp11.778

Rp8.402

Rp6.843

Reel

Rp4.807

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes 1.5kW 6.8V 5% Uni-Directional

1.5SMC6.8A
Littelfuse
1: Rp19.080
1.391In Stock
3.000Expected 05/04/2027

Mfr. Part No.
1.5SMC6.8A

Mouser Part No
576-1.5SMC6.8A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 6.8V 5% Uni-Directional

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Datasheet

1.391In Stock

3.000Expected 05/04/2027

Cut Tape

Rp19.080

Rp8.751

Rp7.724

Rp5.944

Rp5.779

Reel

Rp4.403

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes 1.5kW 6.8V 5% Bi-Directional

1.5SMC6.8CA
Littelfuse
1: Rp20.914
2.201In Stock
9.000Expected 12/04/2027

Mfr. Part No.
1.5SMC6.8CA

Mouser Part No
576-1.5SMC6.8CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 6.8V 5% Bi-Directional

Learn More

Datasheet

2.201In Stock

9.000Expected 12/04/2027

Cut Tape

Rp20.914

Rp9.815

Rp8.531

Rp6.605

Reel

Rp5.100

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC62A
Littelfuse
1: Rp19.080
3.552In Stock

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

3.552In Stock

Cut Tape

Rp19.080

Rp10.971

Rp7.338

Rp5.779

Rp5.265

Reel

Rp4.403

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC68A
Littelfuse
1: Rp19.814
4.322In Stock

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

4.322In Stock

Cut Tape

Rp19.814

Rp9.448

Rp8.072

Rp6.238

Rp5.651

Reel

Rp4.403

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC68CA
Littelfuse
1: Rp21.465
129In Stock
3.000Expected 28/09/2026

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

129In Stock

3.000Expected 28/09/2026

Cut Tape

Rp21.465

Rp11.521

Rp8.769

Rp6.623

Rp6.274

Reel

Rp4.623

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC7.5A
Littelfuse
1: Rp20.181
2.254In 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

2.254In Stock

Cut Tape

Rp20.181

Rp9.448

Rp7.577

Rp6.348

Rp5.816

Reel

Rp4.403

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: Rp20.914
3.124In Stock

Mfr. Part No.
1.5SMC7.5CA

Mouser Part No
576-1.5SMC7.5CA

Littelfuse

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

Learn More

Datasheet

3.124In Stock

Cut Tape

Rp20.914

Rp9.815

Rp8.531

Rp6.605

Reel

Rp5.100

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes 1.5kW 75V 5% Uni-Directional

1.5SMC75A
Littelfuse
1: Rp20.181
3.157In Stock

Mfr. Part No.
1.5SMC75A

Mouser Part No
576-1.5SMC75A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 75V 5% Uni-Directional

Learn More

Datasheet

3.157In Stock

Cut Tape

Rp20.181

Rp9.448

Rp8.201

Rp6.348

Rp5.816

Reel

Rp4.403

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes 1.5kW 75V 5% Bi-Directional

1.5SMC75CA
Littelfuse
1: Rp21.832
681In Stock
6.000Expected 08/03/2027

Mfr. Part No.
1.5SMC75CA

Mouser Part No
576-1.5SMC75CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 75V 5% Bi-Directional

Learn More

Datasheet

681In Stock

6.000Expected 08/03/2027

Cut Tape

Rp21.832

Rp11.778

Rp8.861

Rp6.843

Rp6.770

Reel

Rp4.825

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes 1.5kW 8.2V 5% Uni-Directional

1.5SMC8.2A
Littelfuse
1: Rp20.181
2.951In Stock

Mfr. Part No.
1.5SMC8.2A

Mouser Part No
576-1.5SMC8.2A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 8.2V 5% Uni-Directional

Learn More

Datasheet

2.951In Stock

Cut Tape

Rp20.181

Rp9.448

Rp8.201

Rp6.348

Rp5.651

Reel

Rp4.403

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC82A
Littelfuse
1: Rp20.181
1.436In Stock
3.000Expected 13/04/2027

Mfr. Part No.
1.5SMC82A

Mouser Part No
576-1.5SMC82A

Littelfuse

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

Learn More

Datasheet

1.436In Stock

3.000Expected 13/04/2027

Cut Tape

Rp20.181

Rp9.448

Rp8.201

Rp6.348

Rp5.651

Reel

Rp4.403

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1.5SMC9.1A
Littelfuse
1: Rp20.181
1.959In Stock

Mfr. Part No.
1.5SMC9.1A

Mouser Part No
576-1.5SMC9.1A

Littelfuse

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

Learn More

Datasheet

1.959In Stock

Cut Tape

Rp20.181

Rp12.530

Rp8.182

Rp6.329

Rp5.724

Reel

Rp4.403

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes 1.5kW 91V 5% Uni-Directional

1.5SMC91A
Littelfuse
1: Rp20.364
875In Stock

Mfr. Part No.
1.5SMC91A

Mouser Part No
576-1.5SMC91A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 91V 5% Uni-Directional

Learn More

Datasheet

875In Stock

Cut Tape

Rp20.364

Rp9.448

Rp8.329

Rp6.421

Rp5.816

Reel

Rp4.403

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes 1.5kW 91V 5% Bi-Directional

1.5SMC91CA
Littelfuse
1: Rp20.914
1.161In Stock

Mfr. Part No.
1.5SMC91CA

Mouser Part No
576-1.5SMC91CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 91V 5% Bi-Directional

Learn More

Datasheet

1.161In Stock

Cut Tape

Rp20.914

Rp9.815

Rp8.531

Rp6.605

Rp6.073

Reel

Rp4.623

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes 200W 10V 5% Uni-directional

SMF10A
Littelfuse
1: Rp9.173
12.621In Stock
9.000Expected 26/01/2027

Mfr. Part No.
SMF10A

Mouser Part No
576-SMF10A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 10V 5% Uni-directional

Learn More

Datasheet

12.621In Stock

9.000Expected 26/01/2027

Cut Tape

Rp9.173

Rp4.642

Rp3.559

Rp2.862

Reel

Rp1.908

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes SMF - CA 10V

SMF10CA
Littelfuse
1: Rp11.191
9.914In Stock

Mfr. Part No.
SMF10CA

Mouser Part No
576-SMF10CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 10V

Learn More

Datasheet

9.914In Stock

Cut Tape

Rp11.191

Rp4.990

Rp4.311

Rp3.302

Reel

Rp2.073

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