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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 (PEN) Filter the results in the table by unit price based on your quantity.	Qty.
ESD Protection Diodes / TVS Diodes SMF - CA 20V SMF20CA Littelfuse 1: S/2.22 36,340In 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	36,340In Stock	Cut Tape S/2.22 S/1.06 S/0.868 S/0.701 Reel S/0.397 View S/0.584 S/0.389 S/0.381 S/0.37 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 110V 5% Uni-Directional 1.5SMC110A Littelfuse 1: S/2.18 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 S/2.18 S/1.83 S/1.63 S/1.34 Reel S/0.899 View S/1.21 S/0.895 S/0.825 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - A 180V SMF180A Littelfuse 1: S/2.41 22,337In Stock	Mfr. Part # SMF180A Mouser Part # 576-SMF180A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - A 180V Learn More about Littelfuse smf tvs diodes	Datasheet	22,337In Stock	Cut Tape S/2.41 S/1.10 S/0.942 S/0.728 Reel S/0.459 View S/0.689 S/0.428	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 27V 5% Uni-Directional 1.5SMC27A Littelfuse 1: S/3.74 9,408In Stock	Mfr. Part # 1.5SMC27A Mouser Part # 576-1.5SMC27A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 27V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	9,408In Stock	Cut Tape S/3.74 S/1.89 S/1.61 S/1.27 Reel S/0.942 View S/1.20 S/0.934 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 540V 5% Bi-Directional 1.5SMC540CA Littelfuse 1: S/5.84 4,189In 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	4,189In Stock	Cut Tape S/5.84 S/2.90 S/2.44 S/1.92 Reel S/1.35 View S/1.74 S/1.33 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 160V 5% Bi-Directional 1.5SMC160CA Littelfuse 1: S/2.53 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 S/2.53 S/2.14 S/1.93 S/1.52 Reel S/1.05 View S/1.37 S/0.996 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: S/2.26 4,727In 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	4,727In Stock	Cut Tape S/2.26 S/1.89 S/1.69 S/1.38 Reel S/0.93 View S/1.25 S/0.926 S/0.856 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 11V SMF11CA Littelfuse 1: S/2.41 10,781In Stock	Mfr. Part # SMF11CA Mouser Part # 576-SMF11CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 11V Learn More about Littelfuse smf tvs diodes	Datasheet	10,781In Stock	Cut Tape S/2.41 S/1.17 S/0.942 S/0.712 Reel S/0.428 View S/0.708 S/0.401 S/0.393 S/0.381 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 10V 5% Bi-Directional 1.5SMC10CA Littelfuse 1: S/1.83 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 S/1.83 S/1.80 S/1.69 S/1.38 Reel S/0.93 View S/1.25 S/0.895 S/0.856 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 170V 5% Uni-Directional 1.5SMC170A Littelfuse 1: S/2.18 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 S/2.18 S/1.70 S/1.52 S/1.16 Reel S/1.02 S/0.856 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 200V 5% Uni-Directional 1.5SMC200A Littelfuse 1: S/4.16 3,725In 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	3,725In Stock	Cut Tape S/4.16 S/1.91 S/1.69 S/1.30 Reel S/0.845 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 100V 5% Bi-Directional 1.5SMC100CA Littelfuse 1: S/3.11 4,158In Stock	Mfr. Part # 1.5SMC100CA Mouser Part # 576-1.5SMC100CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 100V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4,158In Stock	Cut Tape S/3.11 S/2.16 S/1.79 S/1.45 Reel S/0.969 View S/1.31 S/0.899 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 16V 5% Bi-Directional 1.5SMC16CA Littelfuse 1: S/2.34 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 S/2.34 S/1.55 S/1.34 S/0.958 Reel S/0.93 View S/0.93 S/0.856 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Bi-Directional 1.5SMC250CA Littelfuse 1: S/4.44 2,868In 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	2,868In Stock	Cut Tape S/4.44 S/2.33 S/1.93 S/1.52 Reel S/1.05 View S/1.37 S/0.996 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 3,212In 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	3,212In Stock	Cut Tape S/4.28 S/1.58 S/1.37 S/1.12 Reel S/0.891 View S/0.981 S/0.817 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 12V 5% Uni-Directional 1.5SMC12A Littelfuse 1: S/4.28 5,903In Stock	Mfr. Part # 1.5SMC12A Mouser Part # 576-1.5SMC12A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 12V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	5,903In Stock	Cut Tape S/4.28 S/1.97 S/1.74 S/1.30 Reel S/0.841 View S/1.27 S/0.817 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 36V 5% Bi-Directional 1.5SMC36CA Littelfuse 1: S/4.28 4,573In 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	4,573In Stock	Cut Tape S/4.28 S/1.97 S/1.62 S/1.23 Reel S/0.872 View S/1.18 S/0.841 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Uni-Directional 1.5SMC250A Littelfuse 1: S/4.32 7,518In 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	7,518In Stock	Cut Tape S/4.32 S/2.02 S/1.76 S/1.36 S/1.29 Reel S/0.946 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 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 S/5.57 S/2.73 S/2.33 S/1.83 Reel S/1.25 View S/1.73 S/1.23 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 550V 5% Bi-Directional 1.5SMC550CA Littelfuse 1: S/6.54 7,146In 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 Learn More about Littelfuse tvsdiodes	Datasheet	7,146In Stock 6,000Expected 4/1/2027	Cut Tape S/6.54 S/4.13 S/3.08 S/2.74 View Reel S/1.52 S/2.15 S/2.10 S/1.52 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 56V 5% Uni-Directional 1.5SMC56A Littelfuse 1: S/4.20 11,137In 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	11,137In Stock	Cut Tape S/4.20 S/1.86 S/1.64 S/1.27 S/1.25 Reel S/0.934 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 10,215In Stock 9,000Expected 6/2/2027	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	10,215In Stock 9,000Expected 6/2/2027	Cut Tape S/4.52 S/2.08 S/1.84 S/1.42 S/1.41 Reel S/0.981 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 75V 5% Bi-Directional 1.5SMC75CA Littelfuse 1: S/4.52 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 S/4.52 S/2.44 S/1.84 S/1.42 Reel S/0.981 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 82V 5% Bi-Directional 1.5SMC82CA Littelfuse 1: S/4.44 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 S/4.44 S/2.08 S/1.81 S/1.40 Reel S/1.08 View S/1.33 S/0.996 S/0.981 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 12V SMF12CA Littelfuse 1: S/2.37 26,446In Stock 12,000Expected 10/19/2026	Mfr. Part # SMF12CA Mouser Part # 576-SMF12CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 12V Learn More about Littelfuse smf tvs diodes	Datasheet	26,446In Stock 12,000Expected 10/19/2026	Cut Tape S/2.37 S/1.06 S/0.93 S/0.701 Reel S/0.467 S/0.409 MouseReel Available	Min.: 1 Mult.: 1 : 3,000

Auxiliary Power Supply

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