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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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.
ESD Protection Diodes / TVS Diodes 1.5kW 15V 5% Bi-Directional 1.5SMC15CA Littelfuse 1: $1.14 3,515In Stock	Mfr. Part No. 1.5SMC15CA Mouser Part No 576-1.5SMC15CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 15V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	3,515In Stock	Cut Tape $1.14 $0.535 $0.465 $0.36 $0.341 Reel $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 160V 5% Uni-Directional 1.5SMC160A Littelfuse 1: $1.11 750In Stock	Mfr. Part No. 1.5SMC160A Mouser Part No 576-1.5SMC160A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 160V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	750In Stock	Cut Tape $1.11 $0.519 $0.452 $0.349 $0.331 Reel $0.243 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 16V 5% Uni-Directional 1.5SMC16A Littelfuse 1: $1.08 1,069In Stock 3,000Expected 16/06/2027	Mfr. Part No. 1.5SMC16A Mouser Part No 576-1.5SMC16A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 16V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,069In Stock 3,000Expected 16/06/2027	Cut Tape $1.08 $0.603 $0.456 $0.352 Reel $0.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 170V 5% Bi-Directional 1.5SMC170CA Littelfuse 1: $1.32 642In Stock	Mfr. Part No. 1.5SMC170CA Mouser Part No 576-1.5SMC170CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 170V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	642In Stock	Cut Tape $1.32 $0.72 $0.543 $0.422 $0.38 Reel $0.294 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 180V 5% Uni-Directional 1.5SMC180A Littelfuse 1: $1.11 5,854In Stock	Mfr. Part No. 1.5SMC180A Mouser Part No 576-1.5SMC180A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 180V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	5,854In Stock	Cut Tape $1.11 $0.519 $0.452 $0.349 Reel $0.269 View $0.331 $0.243 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 180V 5% Bi-Directional 1.5SMC180CA Littelfuse 1: $1.29 293In Stock 3,000Expected 19/05/2027	Mfr. Part No. 1.5SMC180CA Mouser Part No 576-1.5SMC180CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 180V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	293In Stock 3,000Expected 19/05/2027	Cut Tape $1.29 $0.69 $0.501 $0.39 $0.352 Reel $0.294 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 18V 5% Uni-Directional 1.5SMC18A Littelfuse 1: $1.08 384In Stock 12,000On Order	Mfr. Part No. 1.5SMC18A Mouser Part No 576-1.5SMC18A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 18V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	384In Stock 12,000On Order On Order Ship Dates Mfr. No: 1.5SMC18A Stock: 384 Can Dispatch Immediately On Order: 6,000 Expected 21/12/2026 6,000 Expected 21/01/2027 Factory Lead Time: 34 Weeks	Cut Tape $1.08 $0.572 $0.44 $0.354 $0.338 Reel $0.242 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 18V 5% Bi-Directional 1.5SMC18CA Littelfuse 1: $1.17 2,978In Stock 3,000Expected 14/05/2027	Mfr. Part No. 1.5SMC18CA Mouser Part No 576-1.5SMC18CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 18V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,978In Stock 3,000Expected 14/05/2027	Cut Tape $1.17 $0.567 $0.478 $0.369 Reel $0.253 View $0.351 $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 200V 5% Bi-Directional 1.5SMC200CA Littelfuse 1: $1.25 1,765In Stock 3,000Expected 18/05/2027	Mfr. Part No. 1.5SMC200CA Mouser Part No 576-1.5SMC200CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 200V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,765In Stock 3,000Expected 18/05/2027	Cut Tape $1.25 $0.60 $0.482 $0.383 $0.364 Reel $0.294 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 20V 5% Bi-Directional 1.5SMC20CA Littelfuse 1: $1.14 1,988In Stock 3,000Expected 12/04/2027	Mfr. Part No. 1.5SMC20CA Mouser Part No 576-1.5SMC20CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 20V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,988In Stock 3,000Expected 12/04/2027	Cut Tape $1.14 $0.535 $0.465 $0.36 $0.341 Reel $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 22V 5% Bi-Directional 1.5SMC22CA Littelfuse 1: $1.17 3,985In Stock 3,000Expected 16/02/2027	Mfr. Part No. 1.5SMC22CA Mouser Part No 576-1.5SMC22CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 22V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	3,985In Stock 3,000Expected 16/02/2027	Cut Tape $1.17 $0.567 $0.478 $0.369 $0.351 Reel $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 24V 5% Uni-Directional 1.5SMC24A Littelfuse 1: $1.13 4,015In Stock	Mfr. Part No. 1.5SMC24A Mouser Part No 576-1.5SMC24A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 24V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4,015In Stock	Cut Tape $1.13 $0.546 $0.46 $0.36 Reel $0.275 View $0.338 $0.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 24V 5% Bi-Directional 1.5SMC24CA Littelfuse 1: $1.03 1,546In Stock	Mfr. Part No. 1.5SMC24CA Mouser Part No 576-1.5SMC24CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 24V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,546In Stock	Cut Tape $1.03 $0.535 $0.451 $0.342 $0.327 Reel $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 27V 5% Bi-Directional 1.5SMC27CA Littelfuse 1: $1.07 1,279In Stock 3,000Expected 11/05/2027	Mfr. Part No. 1.5SMC27CA Mouser Part No 576-1.5SMC27CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 27V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,279In Stock 3,000Expected 11/05/2027	Cut Tape $1.07 $0.535 $0.465 $0.373 Reel $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 300V 5% Uni-Directional 1.5SMC300A Littelfuse 1: $1.46 158In Stock 9,000Expected 19/11/2026	Mfr. Part No. 1.5SMC300A Mouser Part No 576-1.5SMC300A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 300V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	158In Stock 9,000Expected 19/11/2026	Cut Tape $1.46 $0.806 $0.609 $0.50 $0.466 Reel $0.355 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 300V 5% Bi-Directional 1.5SMC300CA Littelfuse 1: $1.48 1,021In Stock 3,000Expected 15/04/2027	Mfr. Part No. 1.5SMC300CA Mouser Part No 576-1.5SMC300CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 300V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,021In Stock 3,000Expected 15/04/2027	Cut Tape $1.48 $0.863 $0.652 $0.51 Reel $0.372 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 30V 5% Uni-Directional 1.5SMC30A Littelfuse 1: $1.10 2,874In Stock 6,000Expected 10/03/2027	Mfr. Part No. 1.5SMC30A Mouser Part No 576-1.5SMC30A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 30V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,874In Stock 6,000Expected 10/03/2027	Cut Tape $1.10 $0.505 $0.447 $0.344 Reel $0.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 30V 5% Bi-Directional 1.5SMC30CA Littelfuse 1: $1.04 4,565In Stock	Mfr. Part No. 1.5SMC30CA Mouser Part No 576-1.5SMC30CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 30V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4,565In Stock	Cut Tape $1.04 $0.478 $0.423 $0.325 $0.321 Reel $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 33V 5% Bi-Directional 1.5SMC33CA Littelfuse 1: $1.04 1,997In Stock 3,000Expected 17/02/2027	Mfr. Part No. 1.5SMC33CA Mouser Part No 576-1.5SMC33CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 33V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,997In Stock 3,000Expected 17/02/2027	Cut Tape $1.04 $0.588 $0.432 $0.336 $0.325 Reel $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 350V 5% Uni-Directional 1.5SMC350A Littelfuse 1: $1.52 3,685In Stock	Mfr. Part No. 1.5SMC350A Mouser Part No 576-1.5SMC350A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 350V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	3,685In Stock	Cut Tape $1.52 $0.842 $0.636 $0.497 Reel $0.36 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 350V 5% Bi-Directional 1.5SMC350CA Littelfuse 1: $1.58 1,482In Stock 6,000Expected 04/01/2027	Mfr. Part No. 1.5SMC350CA Mouser Part No 576-1.5SMC350CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 350V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,482In Stock 6,000Expected 04/01/2027	Cut Tape $1.58 $0.858 $0.665 $0.521 Reel $0.391 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 39V 5% Bi-Directional 1.5SMC39CA Littelfuse 1: $1.04 3,766In Stock	Mfr. Part No. 1.5SMC39CA Mouser Part No 576-1.5SMC39CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 39V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	3,766In Stock	Cut Tape $1.04 $0.478 $0.41 $0.323 $0.321 Reel $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 400V 5% Uni-Directional 1.5SMC400A Littelfuse 1: $1.52 1,519In Stock 3,000Expected 04/11/2026	Mfr. Part No. 1.5SMC400A Mouser Part No 576-1.5SMC400A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 400V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,519In Stock 3,000Expected 04/11/2026	Cut Tape $1.52 $0.842 $0.636 $0.497 Reel $0.36 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 43V 5% Uni-Directional 1.5SMC43A Littelfuse 1: $1.18 1,000In Stock 9,000On Order	Mfr. Part No. 1.5SMC43A Mouser Part No 576-1.5SMC43A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 43V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,000In Stock 9,000On Order On Order Ship Dates Mfr. No: 1.5SMC43A Stock: 1,000 Can Dispatch Immediately On Order: 3,000 Expected 09/03/2027 6,000 Expected 16/03/2027 Factory Lead Time: 34 Weeks	Cut Tape $1.18 $0.557 $0.483 $0.373 Reel $0.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 440V 5% Uni-Directional 1.5SMC440A Littelfuse 1: $1.31 7In Stock 3,000Expected 25/05/2027	Mfr. Part No. 1.5SMC440A Mouser Part No 576-1.5SMC440A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 440V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	7In Stock 3,000Expected 25/05/2027	Cut Tape $1.31 $0.701 $0.57 $0.453 $0.424 Reel $0.376 MouseReel Available	Min.: 1 Mult.: 1 : 3,000

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