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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 47V 5% Bi-Directional

1.5SMC47CA
Littelfuse
1: S/4.44
4,089In Stock

Mfr. Part #
1.5SMC47CA

Mouser Part #
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

S/4.44

S/2.50

S/1.88

S/1.45

Reel

S/1.08

S/0.981

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC480CA
Littelfuse
1: S/5.84
2,850In Stock
3,000Expected 4/12/2027

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 4/12/2027

Cut Tape

S/5.84

S/3.10

S/2.44

S/1.92

Reel

S/1.37

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC510A
Littelfuse
1: S/5.14
1,426In Stock
3,000On Order

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

1,426In Stock

3,000On Order

Cut Tape

S/5.14

S/2.73

S/2.21

S/1.76

S/1.60

Reel

S/1.40

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC510CA
Littelfuse
1: S/5.99
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

S/5.99

S/2.91

S/2.51

S/1.97

S/1.86

Reel

S/1.52

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC51A
Littelfuse
1: S/4.28
2,984In Stock
3,000Expected 10/13/2026

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 10/13/2026

Cut Tape

S/4.28

S/2.00

S/1.74

S/1.35

S/1.28

Reel

S/0.934

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC530A
Littelfuse
1: S/5.57
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

S/5.57

S/2.73

S/2.33

S/1.93

Reel

S/1.40

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC540A
Littelfuse
1: S/5.57
1,098In Stock
3,000Expected 8/27/2026

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 8/27/2026

Cut Tape

S/5.57

S/2.73

S/2.33

S/1.83

S/1.73

Reel

S/1.40

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC550A
Littelfuse
1: S/5.37
3,000In Stock
3,000Expected 10/8/2026

Mfr. Part #
1.5SMC550A

Mouser Part #
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 10/8/2026

Cut Tape

S/5.37

S/3.39

S/2.25

S/1.76

S/1.60

Reel

S/1.40

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC56CA
Littelfuse
1: S/4.52
3,961In Stock
9,000Expected 10/13/2026

Mfr. Part #
1.5SMC56CA

Mouser Part #
576-1.5SMC56CA

Littelfuse

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

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Datasheet

3,961In Stock

9,000Expected 10/13/2026

Cut Tape

S/4.52

S/2.44

S/1.84

S/1.42

Reel

S/1.02

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: S/4.05
1,391In Stock
3,000Expected 4/5/2027

Mfr. Part #
1.5SMC6.8A

Mouser Part #
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 4/5/2027

Cut Tape

S/4.05

S/1.86

S/1.64

S/1.26

S/1.23

Reel

S/0.934

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: S/4.44
82In Stock
9,000Expected 4/12/2027

Mfr. Part #
1.5SMC6.8CA

Mouser Part #
576-1.5SMC6.8CA

Littelfuse

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

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Datasheet

82In Stock

9,000Expected 4/12/2027

Cut Tape

S/4.44

S/2.08

S/1.81

S/1.40

S/1.29

Reel

S/0.981

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC62A
Littelfuse
1: S/4.05
3,552In Stock

Mfr. Part #
1.5SMC62A

Mouser Part #
576-1.5SMC62A

Littelfuse

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

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Datasheet

3,552In Stock

Cut Tape

S/4.05

S/1.86

S/1.56

S/1.23

S/1.16

Reel

S/0.934

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC68A
Littelfuse
1: S/4.28
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

S/4.28

S/2.00

S/1.61

S/1.26

S/1.20

Reel

S/0.934

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC68CA
Littelfuse
1: S/4.55
129In Stock
3,000Expected 9/28/2026

Mfr. Part #
1.5SMC68CA

Mouser Part #
576-1.5SMC68CA

Littelfuse

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

Learn More

Datasheet

129In Stock

3,000Expected 9/28/2026

Cut Tape

S/4.55

S/2.44

S/1.86

S/1.41

S/1.29

Reel

S/0.981

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: S/4.28
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

S/4.28

S/2.00

S/1.74

S/1.35

S/1.23

Reel

S/0.934

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: S/4.44
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

S/4.44

S/2.08

S/1.81

S/1.40

Reel

S/1.08

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC75A
Littelfuse
1: S/4.28
3,157In 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

3,157In Stock

Cut Tape

S/4.28

S/2.00

S/1.74

S/1.35

S/1.23

Reel

S/0.934

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC75CA
Littelfuse
1: S/4.63
669In Stock
6,000Expected 3/8/2027

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

6,000Expected 3/8/2027

Cut Tape

S/4.63

S/2.50

S/1.88

S/1.45

S/1.44

Reel

S/1.02

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: S/4.28
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

S/4.28

S/2.00

S/1.74

S/1.35

S/1.20

Reel

S/0.934

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC82A
Littelfuse
1: S/4.28
1,436In Stock
3,000Expected 4/13/2027

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 4/13/2027

Cut Tape

S/4.28

S/2.00

S/1.74

S/1.35

S/1.20

Reel

S/0.934

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: S/4.28
1,959In 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

1,959In Stock

Cut Tape

S/4.28

S/2.00

S/1.74

S/1.35

S/1.28

Reel

S/0.934

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC91A
Littelfuse
1: S/4.32
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

S/4.32

S/2.00

S/1.77

S/1.36

S/1.23

Reel

S/0.934

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC91CA
Littelfuse
1: S/4.44
1,161In 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

1,161In Stock

Cut Tape

S/4.44

S/2.08

S/1.81

S/1.40

S/1.33

Reel

S/0.981

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SMF10A
Littelfuse
1: S/1.95
12,621In Stock
9,000Expected 1/26/2027

Mfr. Part #
SMF10A

Mouser Part #
576-SMF10A

Littelfuse

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

Learn More

Datasheet

12,621In Stock

9,000Expected 1/26/2027

Cut Tape

S/1.95

S/0.985

S/0.755

S/0.607

Reel

S/0.405

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 10V

SMF10CA
Littelfuse
1: S/2.30
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

S/2.30

S/1.06

S/0.891

S/0.701

Reel

S/0.44

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