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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) Filter the results in the table by unit price based on your quantity.	Qty.
ESD Protection Diodes / TVS Diodes 1.5kW 160V 5% Bi-Directional 1.5SMC160CA Littelfuse 1: $1.86 4,979In Stock	Mfr. Part # 1.5SMC160CA Mouser Part # 576-1.5SMC160CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 160V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4,979In Stock	Cut Tape $1.86 $1.16 $0.864 $0.766 Reel $0.425 View $0.595 $0.507 $0.39 $0.369 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 20V SMF20CA Littelfuse 1: $0.878 33,340In Stock	Mfr. Part # SMF20CA Mouser Part # 576-SMF20CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 20V Learn More about Littelfuse smf tvs diodes	Datasheet	33,340In Stock	Cut Tape $0.878 $0.392 $0.344 $0.259 Reel $0.151 View $0.256 $0.15 $0.143 $0.14 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 110V 5% Uni-Directional 1.5SMC110A Littelfuse 1: $1.61 6,373In Stock	Mfr. Part # 1.5SMC110A Mouser Part # 576-1.5SMC110A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 110V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	6,373In Stock	Cut Tape $1.61 $0.747 $0.662 $0.511 Reel $0.333 View $0.495 $0.331 $0.305 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 540V 5% Uni-Directional 1.5SMC540A Littelfuse 1: $2.30 4,096In Stock	Mfr. Part # 1.5SMC540A Mouser Part # 576-1.5SMC540A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 540V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4,096In Stock	Cut Tape $2.30 $1.44 $0.949 $0.733 Reel $0.592 View $0.622 $0.539 $0.518 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 540V 5% Bi-Directional 1.5SMC540CA Littelfuse 1: $2.28 4,179In Stock	Mfr. Part # 1.5SMC540CA Mouser Part # 576-1.5SMC540CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 540V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4,179In Stock	Cut Tape $2.28 $1.44 $1.08 $0.958 Reel $0.498 View $0.75 $0.675 $0.491 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 10V 5% Bi-Directional 1.5SMC10CA Littelfuse 1: $1.67 5,557In Stock	Mfr. Part # 1.5SMC10CA Mouser Part # 576-1.5SMC10CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 10V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	5,557In Stock	Cut Tape $1.67 $0.769 $0.681 $0.527 Reel $0.344 View $0.516 $0.317 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 170V 5% Uni-Directional 1.5SMC170A Littelfuse 1: $1.47 2,980In Stock	Mfr. Part # 1.5SMC170A Mouser Part # 576-1.5SMC170A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 170V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,980In Stock	Cut Tape $1.47 $0.685 $0.599 $0.456 Reel $0.376 View $0.444 $0.317 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 200V 5% Uni-Directional 1.5SMC200A Littelfuse 1: $1.51 3,722In Stock	Mfr. Part # 1.5SMC200A Mouser Part # 576-1.5SMC200A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 200V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	3,722In Stock	Cut Tape $1.51 $0.707 $0.615 $0.481 Reel $0.312 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 36V 5% Bi-Directional 1.5SMC36CA Littelfuse 1: $1.58 4,533In Stock	Mfr. Part # 1.5SMC36CA Mouser Part # 576-1.5SMC36CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 36V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4,533In Stock	Cut Tape $1.58 $0.729 $0.524 $0.441 Reel $0.323 View $0.433 $0.308 $0.305 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 51V 5% Uni-Directional 1.5SMC51A Littelfuse 1: $1.61 5,902In Stock	Mfr. Part # 1.5SMC51A Mouser Part # 576-1.5SMC51A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 51V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	5,902In Stock	Cut Tape $1.61 $0.742 $0.657 $0.507 Reel $0.359 View $0.491 $0.33 $0.302 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 530V 5% Uni-Directional 1.5SMC530A Littelfuse 1: $2.30 3,491In Stock	Mfr. Part # 1.5SMC530A Mouser Part # 576-1.5SMC530A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 530V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	3,491In Stock	Cut Tape $2.30 $1.44 $0.949 $0.733 Reel $0.592 View $0.622 $0.539 $0.518 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: $1.67 4,427In 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 about Littelfuse tvsdiodes	Datasheet	4,427In Stock	Cut Tape $1.67 $0.77 $0.681 $0.527 Reel $0.344 View $0.516 $0.317 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 16V 5% Bi-Directional 1.5SMC16CA Littelfuse 1: $1.67 4,570In Stock	Mfr. Part # 1.5SMC16CA Mouser Part # 576-1.5SMC16CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 16V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4,570In Stock	Cut Tape $1.67 $0.769 $0.681 $0.537 Reel $0.344 View $0.516 $0.317 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Bi-Directional 1.5SMC250CA Littelfuse 1: $1.86 2,798In Stock	Mfr. Part # 1.5SMC250CA Mouser Part # 576-1.5SMC250CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,798In Stock	Cut Tape $1.86 $1.16 $0.863 $0.766 Reel $0.39 View $0.595 $0.507 $0.369 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 68V 5% Uni-Directional 1.5SMC68A Littelfuse 1: $1.61 3,207In Stock	Mfr. Part # 1.5SMC68A Mouser Part # 576-1.5SMC68A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 68V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	3,207In Stock	Cut Tape $1.61 $0.585 $0.523 $0.42 Reel $0.338 View $0.363 $0.33 $0.302 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Uni-Directional 1.5SMC250A Littelfuse 1: $1.61 7,510In Stock	Mfr. Part # 1.5SMC250A Mouser Part # 576-1.5SMC250A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	7,510In Stock	Cut Tape $1.61 $0.747 $0.662 $0.511 $0.503 Reel $0.35 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 36V 5% Uni-Directional 1.5SMC36A Littelfuse 1: $1.58 7,629In Stock 9,000Expected 2027-05-17	Mfr. Part # 1.5SMC36A Mouser Part # 576-1.5SMC36A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 36V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	7,629In Stock 9,000Expected 2027-05-17	Cut Tape $1.58 $0.729 $0.645 $0.497 $0.482 Reel $0.341 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 550V 5% Bi-Directional 1.5SMC550CA Littelfuse 1: $2.42 7,146In Stock 6,000Expected 2027-04-08	Mfr. Part # 1.5SMC550CA Mouser Part # 576-1.5SMC550CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 550V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	7,146In Stock 6,000Expected 2027-04-08	Cut Tape $2.42 $1.53 $1.14 $1.02 View Reel $0.563 $0.795 $0.778 $0.563 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 56V 5% Uni-Directional 1.5SMC56A Littelfuse 1: $1.50 10,841In Stock	Mfr. Part # 1.5SMC56A Mouser Part # 576-1.5SMC56A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 56V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	10,841In Stock	Cut Tape $1.50 $0.688 $0.609 $0.468 Reel $0.346 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 10,065In Stock 9,000Expected 2027-05-24	Mfr. Part # 1.5SMC56CA Mouser Part # 576-1.5SMC56CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 56V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	10,065In Stock 9,000Expected 2027-05-24	Cut Tape $1.67 $0.77 $0.681 $0.527 $0.52 Reel $0.363 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 75V 5% Bi-Directional 1.5SMC75CA Littelfuse 1: $1.67 8,315In Stock	Mfr. Part # 1.5SMC75CA Mouser Part # 576-1.5SMC75CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 75V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	8,315In Stock	Cut Tape $1.67 $0.77 $0.681 $0.527 $0.52 Reel $0.363 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 82V 5% Bi-Directional 1.5SMC82CA Littelfuse 1: $1.67 9,253In Stock	Mfr. Part # 1.5SMC82CA Mouser Part # 576-1.5SMC82CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 82V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	9,253In Stock	Cut Tape $1.67 $0.77 $0.681 $0.527 Reel $0.413 View $0.52 $0.38 $0.363 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 12V SMF12CA Littelfuse 1: $0.878 35,632In Stock	Mfr. Part # SMF12CA Mouser Part # 576-SMF12CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 12V Learn More about Littelfuse smf tvs diodes	Datasheet	35,632In Stock	Cut Tape $0.878 $0.392 $0.344 $0.259 Reel $0.173 $0.151 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 13V SMF13CA Littelfuse 1: $0.878 29,855In Stock	Mfr. Part # SMF13CA Mouser Part # 576-SMF13CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 13V Learn More about Littelfuse smf tvs diodes	Datasheet	29,855In Stock	Cut Tape $0.878 $0.392 $0.344 $0.259 Reel $0.163 View $0.256 $0.161 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 14V SMF14CA Littelfuse 1: $0.878 17,270In Stock 24,000Expected 2026-11-17	Mfr. Part # SMF14CA Mouser Part # 576-SMF14CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 14V Learn More about Littelfuse smf tvs diodes	Datasheet	17,270In Stock 24,000Expected 2026-11-17	Cut Tape $0.878 $0.392 $0.344 $0.259 Reel $0.163 View $0.256 $0.15 MouseReel Available	Min.: 1 Mult.: 1 : 3,000

Auxiliary Power Supply

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Auxiliary Power Supply

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