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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 SMF - CA 9V

SMF9.0CA
Littelfuse
1: S/2.41
853In Stock
9,000Expected 1/11/2027

Mfr. Part #
SMF9.0CA

Mouser Part #
576-SMF9.0CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 9V

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Datasheet

853In Stock

9,000Expected 1/11/2027

Cut Tape

S/2.41

S/1.12

S/0.946

S/0.743

Reel

S/0.467

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Gate Drivers 9A GATE DRIVERS LOW SIDE SIC

IX4351NE
IXYS Integrated Circuits
1: S/12.53
281In Stock

Mfr. Part #
IX4351NE

Mouser Part #
747-IX4351NE

IXYS Integrated Circuits

Gate Drivers 9A GATE DRIVERS LOW SIDE SIC

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Datasheet

281In Stock

S/12.53

S/9.50

S/8.21

S/7.36

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 1.5kW 220V 5% Uni-Directional

1.5SMC220A
Littelfuse
1: S/4.36
8,820On Order

Mfr. Part #
1.5SMC220A

Mouser Part #
576-1.5SMC220A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 220V 5% Uni-Directional

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Datasheet

8,820On Order

Cut Tape

S/4.36

S/2.25

S/1.79

S/1.38

Reel

S/0.985

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 220V 5% Bi-Directional

1.5SMC220CA
Littelfuse
1: S/5.02
5,997On Order

Mfr. Part #
1.5SMC220CA

Mouser Part #
576-1.5SMC220CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 220V 5% Bi-Directional

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Datasheet

5,997On Order

Cut Tape

S/5.02

S/2.69

S/2.07

S/1.61

Reel

S/1.17

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC33A
Littelfuse
1: S/4.05
9,000Expected 3/11/2027

Mfr. Part #
1.5SMC33A

Mouser Part #
576-1.5SMC33A

Littelfuse

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

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Datasheet

9,000Expected 3/11/2027

Cut Tape

S/4.05

S/2.28

S/1.64

S/1.26

Reel

S/0.934

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 400V 5% Bi-Directional

1.5SMC400CA
Littelfuse
1: S/6.15
19,543On Order

Mfr. Part #
1.5SMC400CA

Mouser Part #
576-1.5SMC400CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 400V 5% Bi-Directional

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Datasheet

19,543On Order

Cut Tape

S/6.15

S/3.29

S/2.59

S/2.03

Reel

S/1.52

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC47A
Littelfuse
1: S/4.01
6,000On Order

Mfr. Part #
1.5SMC47A

Mouser Part #
576-1.5SMC47A

Littelfuse

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

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Datasheet

6,000On Order

Cut Tape

S/4.01

S/1.97

S/1.71

S/1.32

S/1.26

Reel

S/0.934

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC550CA
Littelfuse
1: S/5.84
7,696In Stock
6,000Expected 4/1/2027

Mfr. Part #
1.5SMC550CA

Mouser Part #
576-1.5SMC550CA

Littelfuse

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

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Datasheet

7,696In Stock

6,000Expected 4/1/2027

Cut Tape

S/5.84

S/3.08

S/2.44

S/1.92

S/1.74

Reel

S/1.52

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC62CA
Littelfuse
1: S/4.44
8,992On Order

Mfr. Part #
1.5SMC62CA

Mouser Part #
576-1.5SMC62CA

Littelfuse

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

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Datasheet

8,992On Order

Cut Tape

S/4.44

S/2.08

S/1.88

S/1.57

S/1.44

Reel

S/1.00

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 200W 18V 5% Uni-directional

SMF18A
Littelfuse
1: S/1.87
17,966On Order

Mfr. Part #
SMF18A

Mouser Part #
576-SMF18A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 18V 5% Uni-directional

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Datasheet

17,966On Order

Cut Tape

S/1.87

S/0.926

S/0.79

S/0.607

Reel

S/0.381

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 18V

SMF18CA
Littelfuse
1: S/2.30
27,000On Order

Mfr. Part #
SMF18CA

Mouser Part #
576-SMF18CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 18V

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Datasheet

27,000On Order

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

ESD Protection Diodes / TVS Diodes SMF - CA 28V

SMF28CA
Littelfuse
1: S/2.30
5,900In Stock
24,000On Order

Mfr. Part #
SMF28CA

Mouser Part #
576-SMF28CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 28V

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Datasheet

5,900In Stock

24,000On Order

Cut Tape

S/2.30

S/1.12

S/0.891

S/0.724

Reel

S/0.44

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 200W 48V 5% Uni-directional

SMF48A
Littelfuse
1: S/1.95
36,000On Order

Mfr. Part #
SMF48A

Mouser Part #
576-SMF48A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 48V 5% Uni-directional

Learn More

Datasheet

36,000On Order

Cut Tape

S/1.95

S/0.926

S/0.79

S/0.607

Reel

S/0.381

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 5V

SMF5.0CA
Littelfuse
1: S/2.41
38,696On Order

Mfr. Part #
SMF5.0CA

Mouser Part #
576-SMF5.0CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 5V

Learn More

Datasheet

38,696On Order

Cut Tape

S/2.41

S/1.12

S/0.942

S/0.743

Reel

S/0.467

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 200W 51V 5% Uni-directional

SMF51A
Littelfuse
1: S/1.79
38,704On Order

Mfr. Part #
SMF51A

Mouser Part #
576-SMF51A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 51V 5% Uni-directional

Learn More

Datasheet

38,704On Order

Cut Tape

S/1.79

S/0.926

S/0.697

S/0.584

Reel

S/0.381

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 200W 64V 5% Uni-directional

SMF64A
Littelfuse
1: S/1.67
23,500On Order

Mfr. Part #
SMF64A

Mouser Part #
576-SMF64A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 64V 5% Uni-directional

Learn More

Datasheet

23,500On Order

Cut Tape

S/1.67

S/0.926

S/0.743

S/0.607

Reel

S/0.381

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 7V

SMF7.0CA
Littelfuse
1: S/2.41
20,948On Order

Mfr. Part #
SMF7.0CA

Mouser Part #
576-SMF7.0CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 7V

Learn More

Datasheet

20,948On Order

Cut Tape

S/2.41

S/1.12

S/0.942

S/0.743

Reel

S/0.467

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 8.5V

SMF8.5CA
Littelfuse
1: S/2.41
18,000On Order

Mfr. Part #
SMF8.5CA

Mouser Part #
576-SMF8.5CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 8.5V

Learn More

Datasheet

18,000On Order

Cut Tape

S/2.41

S/1.19

S/0.942

S/0.775

Reel

S/0.467

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 18V 5% Bi-Directional

1.5SMC18CA
Littelfuse
1: S/4.52
3,000Expected 9/1/2026

Mfr. Part #
1.5SMC18CA

Mouser Part #
576-1.5SMC18CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 18V 5% Bi-Directional

Learn More

Datasheet

3,000Expected 9/1/2026

Cut Tape

S/4.52

S/2.21

S/1.84

S/1.51

Reel

S/0.981

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5kW 43V 5% Bi-Directional

1.5SMC43CA
Littelfuse
1: S/4.28
3,200Expected 9/14/2026

Mfr. Part #
1.5SMC43CA

Mouser Part #
576-1.5SMC43CA

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 43V 5% Bi-Directional

Learn More

Datasheet

3,200Expected 9/14/2026

Cut Tape

S/4.28

S/2.47

S/1.75

S/1.41

S/1.29

Reel

S/0.989

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC480A
Littelfuse
1: S/5.29
3,000Expected 1/5/2027

Mfr. Part #
1.5SMC480A

Mouser Part #
576-1.5SMC480A

Littelfuse

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

Learn More

Datasheet

3,000Expected 1/5/2027

Cut Tape

S/5.29

S/2.89

S/2.30

S/1.81

S/1.65

Reel

S/1.40

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

1.5SMC51CA
Littelfuse
1: S/4.52
4,900Expected 10/6/2026

Mfr. Part #
1.5SMC51CA

Mouser Part #
576-1.5SMC51CA

Littelfuse

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

Learn More

Datasheet

4,900Expected 10/6/2026

Cut Tape

S/4.52

S/2.21

S/1.84

S/1.51

Reel

S/0.981

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
5,157On Order

Mfr. Part #
1.5SMC68CA

Mouser Part #
576-1.5SMC68CA

Littelfuse

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

Learn More

Datasheet

5,157On Order

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 SMF - A 170V

SMF170A
Littelfuse
1: S/2.76
12,000On Order

Mfr. Part #
SMF170A

Mouser Part #
576-SMF170A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - A 170V

Learn More

Datasheet

12,000On Order

Cut Tape

S/2.76

S/1.42

S/1.23

S/1.19

Reel

S/0.506

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 51V

SMF51CA
Littelfuse
1: S/2.30
5,973Expected 12/30/2026

Mfr. Part #
SMF51CA

Mouser Part #
576-SMF51CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 51V

Learn More

Datasheet

5,973Expected 12/30/2026

Cut Tape

S/2.30

S/1.12

S/0.891

S/0.724

Reel

S/0.467

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