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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 480V 5% Bi-Directional

1.5SMC480CA
Littelfuse
1: $2.16
2,850In Stock
3,000Expected 2027-04-12

Mfr. Part #
1.5SMC480CA

Mouser Part #
576-1.5SMC480CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 480V 5% Bi-Directional

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Datasheet

2,850In Stock

3,000Expected 2027-04-12

Cut Tape

$2.16

$1.15

$0.904

$0.708

Reel

$0.507

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC510A
Littelfuse
1: $1.90
1,326In Stock
3,000Expected 2026-09-03

Mfr. Part #
1.5SMC510A

Mouser Part #
576-1.5SMC510A

Littelfuse

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

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Datasheet

1,326In Stock

3,000Expected 2026-09-03

Cut Tape

$1.90

$1.01

$0.819

$0.652

$0.592

Reel

$0.518

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC510CA
Littelfuse
1: $2.22
3,435In Stock

Mfr. Part #
1.5SMC510CA

Mouser Part #
576-1.5SMC510CA

Littelfuse

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

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Datasheet

3,435In Stock

Cut Tape

$2.22

$1.08

$0.927

$0.727

$0.69

Reel

$0.563

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC51A
Littelfuse
1: $1.58
2,984In Stock
3,000Expected 2026-10-13

Mfr. Part #
1.5SMC51A

Mouser Part #
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 2026-10-13

Cut Tape

$1.58

$0.742

$0.644

$0.498

$0.472

Reel

$0.346

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC530A
Littelfuse
1: $2.06
3,526In Stock

Mfr. Part #
1.5SMC530A

Mouser Part #
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

$2.06

$1.01

$0.863

$0.716

Reel

$0.518

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC540A
Littelfuse
1: $2.06
1,098In Stock
3,000Expected 2026-08-27

Mfr. Part #
1.5SMC540A

Mouser Part #
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 2026-08-27

Cut Tape

$2.06

$1.01

$0.863

$0.675

$0.641

Reel

$0.518

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC550A
Littelfuse
1: $1.99
3,000In Stock
3,000Expected 2026-10-08

Mfr. Part #
1.5SMC550A

Mouser Part #
576-1.5SMC550A

Littelfuse

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

Learn More

Datasheet

3,000In Stock

3,000Expected 2026-10-08

Cut Tape

$1.99

$1.26

$0.832

$0.651

$0.59

Reel

$0.518

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC56CA
Littelfuse
1: $1.67
3,961In 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

3,961In Stock

9,000Expected 2026-10-13

Cut Tape

$1.67

$0.901

$0.681

$0.527

Reel

$0.377

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: $1.50
1,391In Stock
3,000Expected 2027-04-05

Mfr. Part #
1.5SMC6.8A

Mouser Part #
576-1.5SMC6.8A

Littelfuse

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

Learn More

Datasheet

1,391In Stock

3,000Expected 2027-04-05

Cut Tape

$1.50

$0.687

$0.606

$0.467

$0.454

Reel

$0.346

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: $1.64
82In Stock
9,000Expected 2027-04-12

Mfr. Part #
1.5SMC6.8CA

Mouser Part #
576-1.5SMC6.8CA

Littelfuse

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

Learn More

Datasheet

82In Stock

9,000Expected 2027-04-12

Cut Tape

$1.64

$0.77

$0.67

$0.518

$0.477

Reel

$0.363

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC62A
Littelfuse
1: $1.50
3,377In Stock

Mfr. Part #
1.5SMC62A

Mouser Part #
576-1.5SMC62A

Littelfuse

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

Learn More

Datasheet

3,377In Stock

Cut Tape

$1.50

$0.688

$0.576

$0.454

$0.431

Reel

$0.346

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC68A
Littelfuse
1: $1.58
4,272In Stock

Mfr. Part #
1.5SMC68A

Mouser Part #
576-1.5SMC68A

Littelfuse

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

Learn More

Datasheet

4,272In Stock

Cut Tape

$1.58

$0.742

$0.595

$0.467

$0.444

Reel

$0.346

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: $1.58
2,254In Stock

Mfr. Part #
1.5SMC7.5A

Mouser Part #
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

$1.58

$0.742

$0.644

$0.498

$0.456

Reel

$0.346

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: $1.64
3,124In Stock

Mfr. Part #
1.5SMC7.5CA

Mouser Part #
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

$1.64

$0.77

$0.67

$0.518

Reel

$0.40

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC75A
Littelfuse
1: $1.58
2,917In Stock

Mfr. Part #
1.5SMC75A

Mouser Part #
576-1.5SMC75A

Littelfuse

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

Learn More

Datasheet

2,917In Stock

Cut Tape

$1.58

$0.742

$0.644

$0.498

$0.456

Reel

$0.346

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC75CA
Littelfuse
1: $1.71
669In Stock
6,000On Order

Mfr. Part #
1.5SMC75CA

Mouser Part #
576-1.5SMC75CA

Littelfuse

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

Learn More

Datasheet

669In Stock

6,000On Order

Cut Tape

$1.71

$0.924

$0.696

$0.537

$0.531

Reel

$0.379

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: $1.58
2,951In Stock

Mfr. Part #
1.5SMC8.2A

Mouser Part #
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

$1.58

$0.742

$0.644

$0.498

$0.444

Reel

$0.346

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC82A
Littelfuse
1: $1.58
1,436In Stock
3,000Expected 2027-05-18

Mfr. Part #
1.5SMC82A

Mouser Part #
576-1.5SMC82A

Littelfuse

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

Learn More

Datasheet

1,436In Stock

3,000Expected 2027-05-18

Cut Tape

$1.58

$0.742

$0.644

$0.498

$0.444

Reel

$0.346

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: $1.58
1,794In Stock

Mfr. Part #
1.5SMC9.1A

Mouser Part #
576-1.5SMC9.1A

Littelfuse

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

Learn More

Datasheet

1,794In Stock

Cut Tape

$1.58

$0.742

$0.644

$0.498

$0.472

Reel

$0.346

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC91A
Littelfuse
1: $1.60
875In Stock

Mfr. Part #
1.5SMC91A

Mouser Part #
576-1.5SMC91A

Littelfuse

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

Learn More

Datasheet

875In Stock

Cut Tape

$1.60

$0.742

$0.654

$0.504

$0.456

Reel

$0.346

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC91CA
Littelfuse
1: $1.64
1,151In Stock

Mfr. Part #
1.5SMC91CA

Mouser Part #
576-1.5SMC91CA

Littelfuse

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

Learn More

Datasheet

1,151In Stock

Cut Tape

$1.64

$0.77

$0.67

$0.518

$0.491

Reel

$0.363

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SMF10A
Littelfuse
1: $0.72
12,181In Stock
9,000Expected 2027-02-22

Mfr. Part #
SMF10A

Mouser Part #
576-SMF10A

Littelfuse

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

Learn More

Datasheet

12,181In Stock

9,000Expected 2027-02-22

Cut Tape

$0.72

$0.364

$0.279

$0.225

Reel

$0.15

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 10V

SMF10CA
Littelfuse
1: $0.85
9,914In Stock

Mfr. Part #
SMF10CA

Mouser Part #
576-SMF10CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 10V

Learn More

Datasheet

9,914In Stock

Cut Tape

$0.85

$0.392

$0.33

$0.259

Reel

$0.163

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - A 110V

SMF110A
Littelfuse
1: $1.07
2,697In Stock

Mfr. Part #
SMF110A

Mouser Part #
576-SMF110A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - A 110V

Learn More

Datasheet

2,697In Stock

Cut Tape

$1.07

$0.531

$0.465

$0.458

Reel

$0.187

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 200W 11V 5% Uni-directional

SMF11A
Littelfuse
1: $0.691
5,528In Stock

Mfr. Part #
SMF11A

Mouser Part #
576-SMF11A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 11V 5% Uni-directional

Learn More

Datasheet

5,528In Stock

Cut Tape

$0.691

$0.343

$0.269

$0.209

Reel

$0.141

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