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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: $1.58
83In Stock
3,000Expected 2026/09/08

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 2026/09/08

Cut Tape

$1.58

$0.868

$0.609

$0.521

Reel

$0.391

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC47CA
Littelfuse
1: $1.14
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

$1.14

$0.535

$0.458

$0.373

Reel

$0.278

$0.252

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC510A
Littelfuse
1: $1.33
1,426In Stock
3,000Expected 2026/08/20

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 2026/08/20

Cut Tape

$1.33

$0.701

$0.569

$0.454

$0.428

Reel

$0.397

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC510CA
Littelfuse
1: $1.54
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

$1.54

$0.747

$0.644

$0.505

$0.479

Reel

$0.429

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC51A
Littelfuse
1: $1.10
2,984In Stock
3,000Expected 2026/10/13

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 2026/10/13

Cut Tape

$1.10

$0.515

$0.447

$0.347

$0.328

Reel

$0.24

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC530A
Littelfuse
1: $1.43
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

$1.43

$0.701

$0.597

$0.497

Reel

$0.433

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC540A
Littelfuse
1: $1.40
1,098In Stock
3,000Expected 2026/08/27

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 2026/08/27

Cut Tape

$1.40

$0.873

$0.579

$0.454

Reel

$0.407

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC550A
Littelfuse
1: $1.49
3,000In Stock
3,000Expected 2026/10/08

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 2026/10/08

Cut Tape

$1.49

$0.83

$0.643

$0.521

$0.488

Reel

$0.408

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC56CA
Littelfuse
1: $1.12
3,942In Stock
9,000Expected 2026/10/13

Mfr. Part No.
1.5SMC56CA

Mouser Part No
576-1.5SMC56CA

Littelfuse

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

Learn More

Datasheet

3,942In Stock

9,000Expected 2026/10/13

Cut Tape

$1.12

$0.642

$0.458

$0.373

Reel

$0.328

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: $1.04
1,391In Stock
3,000Expected 2027/04/05

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

Learn More

Datasheet

1,391In Stock

3,000Expected 2027/04/05

Cut Tape

$1.04

$0.477

$0.421

$0.324

$0.315

Reel

$0.24

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: $1.14
2,201In Stock
9,000Expected 2027/04/12

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 2027/04/12

Cut Tape

$1.14

$0.535

$0.465

$0.361

Reel

$0.278

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC62A
Littelfuse
1: $1.04
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

$1.04

$0.598

$0.40

$0.315

$0.287

Reel

$0.24

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC68A
Littelfuse
1: $1.08
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

$1.08

$0.515

$0.44

$0.34

$0.308

Reel

$0.24

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC68CA
Littelfuse
1: $1.17
129In Stock
3,000Expected 2026/09/28

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 2026/09/28

Cut Tape

$1.17

$0.628

$0.478

$0.361

$0.342

Reel

$0.252

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: $1.10
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

$1.10

$0.515

$0.413

$0.347

$0.317

Reel

$0.24

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: $1.14
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

$1.14

$0.535

$0.465

$0.361

Reel

$0.278

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC75A
Littelfuse
1: $1.10
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

$1.10

$0.515

$0.447

$0.347

$0.317

Reel

$0.24

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC75CA
Littelfuse
1: $1.19
681In Stock
6,000Expected 2027/03/08

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 2027/03/08

Cut Tape

$1.19

$0.642

$0.483

$0.373

$0.369

Reel

$0.328

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: $1.10
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

$1.10

$0.515

$0.447

$0.347

$0.308

Reel

$0.24

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC82A
Littelfuse
1: $1.10
1,436In Stock
3,000Expected 2027/04/13

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 2027/04/13

Cut Tape

$1.10

$0.515

$0.447

$0.347

$0.308

Reel

$0.24

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: $1.10
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

$1.10

$0.683

$0.447

$0.345

$0.312

Reel

$0.24

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC91A
Littelfuse
1: $1.11
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

$1.11

$0.515

$0.454

$0.35

$0.317

Reel

$0.24

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC91CA
Littelfuse
1: $1.14
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

$1.14

$0.535

$0.465

$0.361

$0.331

Reel

$0.252

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SMF10A
Littelfuse
1: $0.50
12,621In Stock
9,000Expected 2027/01/26

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 2027/01/26

Cut Tape

$0.50

$0.254

$0.194

$0.156

Reel

$0.104

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 10V

SMF10CA
Littelfuse
1: $0.611
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

$0.611

$0.272

$0.235

$0.18

Reel

$0.113

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Auxiliary Power Supply

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Auxiliary Power Supply

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Semiconductors