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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 350V 5% Uni-Directional

1.5SMC350A
Littelfuse
1: $2.00
6,953In 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

6,953In Stock

Cut Tape

$2.00

$1.26

$0.834

$0.652

Reel

$0.485

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC110A
Littelfuse
1: $1.22
6,478In Stock

Mfr. Part #
1.5SMC110A

Mouser Part #
576-1.5SMC110A

Littelfuse

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

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Datasheet

6,478In Stock

Cut Tape

$1.22

$0.835

$0.613

$0.495

Reel

$0.333

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC540CA
Littelfuse
1: $2.16
4,225In 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

4,225In Stock

Cut Tape

$2.16

$1.36

$0.904

$0.708

Reel

$0.498

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC10CA
Littelfuse
1: $0.907
5,810In 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

5,810In Stock

Cut Tape

$0.907

$0.804

$0.624

$0.51

Reel

$0.344

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC56A
Littelfuse
1: $1.11
20,247In 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

20,247In Stock

Cut Tape

$1.11

$0.842

$0.598

$0.468

$0.423

Reel

$0.304

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 20V

SMF20CA
Littelfuse
1: $0.821
38,000In Stock

Mfr. Part #
SMF20CA

Mouser Part #
576-SMF20CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 20V

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Datasheet

38,000In Stock

Cut Tape

$0.821

$0.504

$0.321

$0.259

Reel

$0.163

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC16A
Littelfuse
1: $0.878
5,231In 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

5,231In Stock

Cut Tape

$0.878

$0.772

$0.598

$0.49

Reel

$0.33

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC20A
Littelfuse
1: $0.778
4,112In 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

4,112In Stock

Cut Tape

$0.778

$0.736

$0.582

$0.49

Reel

$0.314

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC530CA
Littelfuse
1: $1.99
2,791In Stock
3,000Expected 2026-07-29

Mfr. Part #
1.5SMC530CA

Mouser Part #
576-1.5SMC530CA

Littelfuse

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

Learn More

Datasheet

2,791In Stock

3,000Expected 2026-07-29

Cut Tape

$1.99

$1.32

$0.924

$0.724

Reel

$0.498

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC20CA
Littelfuse
1: $0.907
3,631In Stock

Mfr. Part #
1.5SMC20CA

Mouser Part #
576-1.5SMC20CA

Littelfuse

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

Learn More

Datasheet

3,631In Stock

Cut Tape

$0.907

$0.804

$0.624

$0.51

Reel

$0.344

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC200CA
Littelfuse
1: $1.54
3,265In Stock

Mfr. Part #
1.5SMC200CA

Mouser Part #
576-1.5SMC200CA

Littelfuse

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

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Datasheet

3,265In Stock

Cut Tape

$1.54

$0.886

$0.624

$0.511

Reel

$0.39

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC75A
Littelfuse
1: $1.44
4,947In Stock

Mfr. Part #
1.5SMC75A

Mouser Part #
576-1.5SMC75A

Littelfuse

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

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Datasheet

4,947In Stock

Cut Tape

$1.44

$0.924

$0.611

$0.49

Reel

$0.33

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: $0.907
4,829In 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

Learn More

Datasheet

4,829In Stock

Cut Tape

$0.907

$0.804

$0.624

$0.51

Reel

$0.344

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC33CA
Littelfuse
1: $1.50
6,087In Stock

Mfr. Part #
1.5SMC33CA

Mouser Part #
576-1.5SMC33CA

Littelfuse

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

Learn More

Datasheet

6,087In Stock

Cut Tape

$1.50

$0.883

$0.593

$0.468

$0.423

Reel

$0.363

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC350CA
Littelfuse
1: $2.33
4,486In Stock

Mfr. Part #
1.5SMC350CA

Mouser Part #
576-1.5SMC350CA

Littelfuse

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

Learn More

Datasheet

4,486In Stock

Cut Tape

$2.33

$1.47

$0.976

$0.765

$0.697

Reel

$0.563

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC510CA
Littelfuse
1: $2.20
5,056In Stock

Mfr. Part #
1.5SMC510CA

Mouser Part #
576-1.5SMC510CA

Littelfuse

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

Learn More

Datasheet

5,056In Stock

Cut Tape

$2.20

$1.39

$0.924

$0.724

$0.658

Reel

$0.563

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC550CA
Littelfuse
1: $2.28
5,459In Stock
9,000Expected 2026-09-07

Mfr. Part #
1.5SMC550CA

Mouser Part #
576-1.5SMC550CA

Littelfuse

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

Learn More

Datasheet

5,459In Stock

9,000Expected 2026-09-07

Cut Tape

$2.28

$1.39

$0.958

$0.75

$0.684

Reel

$0.563

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC56CA
Littelfuse
1: $1.61
6,000In Stock
9,000Expected 2026-10-13

Mfr. Part #
1.5SMC56CA

Mouser Part #
576-1.5SMC56CA

Littelfuse

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

Learn More

Datasheet

6,000In Stock

9,000Expected 2026-10-13

Cut Tape

$1.61

$1.01

$0.66

$0.537

Reel

$0.40

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC82CA
Littelfuse
1: $0.835
11,118In Stock

Mfr. Part #
1.5SMC82CA

Mouser Part #
576-1.5SMC82CA

Littelfuse

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

Learn More

Datasheet

11,118In Stock

Cut Tape

$0.835

$0.804

$0.624

$0.51

Reel

$0.344

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 12V

SMF12CA
Littelfuse
1: $0.806
18,439In Stock
15,000Expected 2026-09-15

Mfr. Part #
SMF12CA

Mouser Part #
576-SMF12CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 12V

Learn More

Datasheet

18,439In Stock

15,000Expected 2026-09-15

Cut Tape

$0.806

$0.52

$0.344

$0.259

Reel

$0.163

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 15V

SMF15CA
Littelfuse
1: $0.792
23,238In Stock
48,000Expected 2026-07-30

Mfr. Part #
SMF15CA

Mouser Part #
576-SMF15CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 15V

Learn More

Datasheet

23,238In Stock

48,000Expected 2026-07-30

Cut Tape

$0.792

$0.504

$0.344

$0.259

Reel

$0.163

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 30V

SMF30CA
Littelfuse
1: $0.85
21,556In Stock
15,000Expected 2026-07-27

Mfr. Part #
SMF30CA

Mouser Part #
576-SMF30CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 30V

Learn More

Datasheet

21,556In Stock

15,000Expected 2026-07-27

Cut Tape

$0.85

$0.52

$0.331

$0.259

Reel

$0.163

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 36V

SMF36CA
Littelfuse
1: $0.821
16,543In Stock
15,000Expected 2026-07-27

Mfr. Part #
SMF36CA

Mouser Part #
576-SMF36CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 36V

Learn More

Datasheet

16,543In Stock

15,000Expected 2026-07-27

Cut Tape

$0.821

$0.504

$0.321

$0.259

Reel

$0.163

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 40V

SMF40CA
Littelfuse
1: $0.85
26,370In Stock

Mfr. Part #
SMF40CA

Mouser Part #
576-SMF40CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 40V

Learn More

Datasheet

26,370In Stock

Cut Tape

$0.85

$0.52

$0.331

$0.259

Reel

$0.163

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SMF5.0A
Littelfuse
1: $0.677
24,159In Stock
159,000Expected 2026-06-22

Mfr. Part #
SMF5.0A

Mouser Part #
576-SMF5.0A

Littelfuse

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

Learn More

Datasheet

24,159In Stock

159,000Expected 2026-06-22

Cut Tape

$0.677

$0.446

$0.262

$0.206

Reel

$0.127

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