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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: $695 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 $695 $310 $272 $205 Reel $120 View $203 $118 $113 $111 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 110V 5% Uni-Directional 1.5SMC110A Littelfuse 1: $1.276 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 $1.276 $591 $524 $404 Reel $263 View $392 $262 $242 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 540V 5% Uni-Directional 1.5SMC540A Littelfuse 1: $1.823 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 $1.823 $1.139 $751 $580 Reel $468 View $492 $426 $410 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes SMF - A 180V SMF180A Littelfuse 1: $718 21.337In 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	21.337In Stock	Cut Tape $718 $321 $281 $213 Reel $129 View $120 $117 $116	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 540V 5% Bi-Directional 1.5SMC540CA Littelfuse 1: $1.800 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 $1.800 $1.139 $851 $758 Reel $394 View $594 $534 $388 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 160V 5% Bi-Directional 1.5SMC160CA Littelfuse 1: $1.470 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 $1.470 $921 $684 $606 Reel $336 View $471 $401 $309 $292 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 51V 5% Uni-Directional 1.5SMC51A Littelfuse 1: $1.276 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 $1.276 $587 $520 $401 Reel $284 View $388 $261 $239 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 16V 5% Bi-Directional 1.5SMC16CA Littelfuse 1: $1.322 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 $1.322 $608 $539 $425 Reel $272 View $408 $251 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Bi-Directional 1.5SMC250CA Littelfuse 1: $1.470 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 $1.470 $921 $682 $606 Reel $309 View $471 $401 $292 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 530V 5% Uni-Directional 1.5SMC530A Littelfuse 1: $1.823 3.526In 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	3.526In Stock	Cut Tape $1.823 $1.139 $751 $580 Reel $468 View $492 $426 $410 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: $1.322 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 $1.322 $610 $539 $417 Reel $272 View $408 $251 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes SMF - CA 11V SMF11CA Littelfuse 1: $775 10.381In 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	10.381In Stock	Cut Tape $775 $373 $304 $228 Reel $140 View $203 $137 $124 $112 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 68V 5% Uni-Directional 1.5SMC68A Littelfuse 1: $1.276 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 $1.276 $463 $414 $333 Reel $268 View $287 $261 $239 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 10V 5% Bi-Directional 1.5SMC10CA Littelfuse 1: $1.322 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 $1.322 $608 $539 $417 Reel $272 View $408 $251 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 170V 5% Uni-Directional 1.5SMC170A Littelfuse 1: $1.162 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 $1.162 $542 $474 $361 Reel $297 View $351 $251 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 200V 5% Uni-Directional 1.5SMC200A Littelfuse 1: $1.196 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 $1.196 $559 $486 $381 Reel $247 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 36V 5% Bi-Directional 1.5SMC36CA Littelfuse 1: $1.253 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 $1.253 $576 $415 $349 Reel $255 View $343 $244 $242 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Uni-Directional 1.5SMC250A Littelfuse 1: $1.276 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 $1.276 $591 $524 $404 $398 Reel $277 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 36V 5% Uni-Directional 1.5SMC36A Littelfuse 1: $1.253 7.629In Stock 9.000Expected 5/17/2027	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 5/17/2027	Cut Tape $1.253 $576 $510 $393 $382 Reel $270 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 550V 5% Bi-Directional 1.5SMC550CA Littelfuse 1: $1.914 7.146In Stock 6.000Expected 4/8/2027	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 4/8/2027	Cut Tape $1.914 $1.208 $901 $803 View Reel $445 $629 $615 $445 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 56V 5% Uni-Directional 1.5SMC56A Littelfuse 1: $1.185 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 $1.185 $545 $482 $370 Reel $273 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 56V 5% Bi-Directional 1.5SMC56CA Littelfuse 1: $1.322 10.065In Stock 9.000Expected 5/24/2027	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	10.065In Stock 9.000Expected 5/24/2027	Cut Tape $1.322 $610 $539 $417 $411 Reel $287 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 75V 5% Bi-Directional 1.5SMC75CA Littelfuse 1: $1.322 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 $1.322 $610 $539 $417 $411 Reel $287 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5kW 82V 5% Bi-Directional 1.5SMC82CA Littelfuse 1: $1.322 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 $1.322 $610 $539 $417 Reel $327 View $411 $301 $287 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 200W 12V 5% Uni-directional SMF12A Littelfuse 1: $592 19.712In Stock 63.000On Order	Mfr. Part # SMF12A Mouser Part # 576-SMF12A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 12V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	19.712In Stock 63.000On Order On Order Ship Dates Mfr. #: SMF12A Stock: 19.712 Can Ship Immediately On Order: 27.000 Expected 12/14/2026 36.000 Expected 2/17/2027 Factory Lead-Time: 20 Weeks	Cut Tape $592 $263 $230 $173 Reel $114 View $170 $98 MouseReel Available	Min.: 1 Mult.: 1 : 3.000

Auxiliary Power Supply

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Auxiliary Power Supply

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