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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 (CLP) 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: $626 36.430In 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	36.430In Stock	Cut Tape $626 $299 $245 $198 Reel $114 View $165 $112 $108 $104 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 12V 5% Uni-Directional 1.5SMC12A Littelfuse 1: $1.208 6.003In 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	6.003In Stock	Cut Tape $1.208 $554 $490 $368 Reel $254 View $359 $249 $246 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 160V 5% Bi-Directional 1.5SMC160CA Littelfuse 1: $714 4.981In 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	4.981In Stock	Cut Tape $714 $604 $543 $428 Reel $298 View $386 $281 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 540V 5% Bi-Directional 1.5SMC540CA Littelfuse 1: $1.647 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 $1.647 $819 $690 $540 Reel $380 View $490 $374 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 110V 5% Uni-Directional 1.5SMC110A Littelfuse 1: $615 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 $615 $516 $461 $378 Reel $254 View $341 $253 $233 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 51V 5% Uni-Directional 1.5SMC51A Littelfuse 1: $1.186 2.984In Stock 3.000Expected 10/29/2026	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	2.984In Stock 3.000Expected 10/29/2026	Cut Tape $1.186 $565 $483 $373 Reel $251 View $338 $250 $231 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 36V 5% Bi-Directional 1.5SMC36CA Littelfuse 1: $1.208 4.673In 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	4.673In Stock	Cut Tape $1.208 $556 $384 $301 Reel $246 View $300 $233 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 10V 5% Bi-Directional 1.5SMC10CA Littelfuse 1: $516 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 $516 $507 $477 $389 Reel $262 View $352 $248 $242 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 170V 5% Uni-Directional 1.5SMC170A Littelfuse 1: $615 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 $615 $481 $428 $328 Reel $287 View $326 $283 $242 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 200V 5% Uni-Directional 1.5SMC200A Littelfuse 1: $1.142 3.745In 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	3.745In Stock	Cut Tape $1.142 $539 $469 $367 Reel $238 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: $637 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 $637 $533 $477 $389 Reel $262 View $352 $261 $242 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 100V 5% Bi-Directional 1.5SMC100CA Littelfuse 1: $878 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 $878 $608 $506 $408 Reel $273 View $370 $254 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 16V 5% Bi-Directional 1.5SMC16CA Littelfuse 1: $659 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 $659 $438 $378 $270 Reel $262 View $262 $242 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 20V 5% Uni-Directional 1.5SMC20A Littelfuse 1: $604 4.112In Stock	Mfr. Part # 1.5SMC20A Mouser Part # 576-1.5SMC20A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 20V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4.112In Stock	Cut Tape $604 $564 $445 $368 Reel $240 View $348 $237 $231 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Bi-Directional 1.5SMC250CA Littelfuse 1: $1.252 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 $1.252 $658 $545 $428 Reel $298 View $386 $296 $281 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 540V 5% Uni-Directional 1.5SMC540A Littelfuse 1: $1.570 4.098In 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	4.098In Stock	Cut Tape $1.570 $770 $658 $515 Reel $354 View $489 $346 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Uni-Directional 1.5SMC250A Littelfuse 1: $1.219 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 $1.219 $570 $496 $383 $363 Reel $267 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 27V 5% Uni-Directional 1.5SMC27A Littelfuse 1: $1.098 10.958In 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	10.958In Stock	Cut Tape $1.098 $565 $463 $362 Reel $266 View $338 $264 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 36V 5% Uni-Directional 1.5SMC36A Littelfuse 1: $1.208 7.837In Stock 6.000Expected 11/23/2026	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	7.837In Stock 6.000Expected 11/23/2026	Cut Tape $1.208 $556 $492 $379 Reel $260 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 550V 5% Bi-Directional 1.5SMC550CA Littelfuse 1: $1.801 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 $1.801 $868 $758 $606 $563 Reel $429 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 56V 5% Uni-Directional 1.5SMC56A Littelfuse 1: $1.186 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 $1.186 $525 $462 $357 $352 Reel $264 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 82V 5% Bi-Directional 1.5SMC82CA Littelfuse 1: $1.252 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 $1.252 $587 $511 $395 Reel $305 View $374 $281 $277 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes SMF - CA 12V SMF12CA Littelfuse 1: $659 21.355In Stock 18.000Expected 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	21.355In Stock 18.000Expected 10/19/2026	Cut Tape $659 $299 $257 $198 Reel $124 View $190 $113 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes SMF - CA 13V SMF13CA Littelfuse 1: $648 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 $648 $299 $253 $198 Reel $125 View $180 $124 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes SMF - CA 14V SMF14CA Littelfuse 1: $659 24.350In Stock 27.000On Order	Mfr. Part # SMF14CA Mouser Part # 576-SMF14CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 14V Learn More about Littelfuse smf tvs diodes	Datasheet	24.350In Stock 27.000On Order On Order Ship Dates Mfr. #: SMF14CA Stock: 24.350 Can Ship Immediately On Order: 3.000 Expected 11/19/2026 24.000 Expected 11/24/2026 Factory Lead-Time: 18 Weeks	Cut Tape $659 $317 $283 $214 Reel $139 View $130 $114 $113 MouseReel Available	Min.: 1 Mult.: 1 : 3.000

Auxiliary Power Supply

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