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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 43V 5% Bi-Directional 1.5SMC43CA Littelfuse 1: $1.12 5In Stock 6,000Expected 2027/05/10	Mfr. Part No. 1.5SMC43CA Mouser Part No 576-1.5SMC43CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 43V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	5In Stock 6,000Expected 2027/05/10	Cut Tape $1.12 $0.593 $0.449 $0.354 $0.326 Reel $0.311 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 440V 5% Uni-Directional 1.5SMC440A Littelfuse 1: $1.49 171In Stock 6,000On Order	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	171In Stock 6,000On Order On Order Ship Dates Mfr. No: 1.5SMC440A Stock: 171 Can Dispatch Immediately On Order: 3,000 Expected 2027/05/17 3,000 Expected 2027/05/25 Factory Lead Time: 34 Weeks	Cut Tape $1.49 $0.744 $0.57 $0.454 $0.411 Reel $0.376 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 440V 5% Bi-Directional 1.5SMC440CA Littelfuse 1: $1.45 3,498In Stock	Mfr. Part No. 1.5SMC440CA Mouser Part No 576-1.5SMC440CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 440V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	3,498In Stock	Cut Tape $1.45 $0.747 $0.665 $0.566 $0.531 Reel $0.391 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 47V 5% Bi-Directional 1.5SMC47CA Littelfuse 1: $1.14 3,529In Stock	Mfr. Part No. 1.5SMC47CA Mouser Part No 576-1.5SMC47CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 47V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	3,529In Stock	Cut Tape $1.14 $0.535 $0.465 $0.361 $0.341 Reel $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 480V 5% Bi-Directional 1.5SMC480CA Littelfuse 1: $1.62 2,350In Stock 3,000Expected 2027/03/11	Mfr. Part No. 1.5SMC480CA Mouser Part No 576-1.5SMC480CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 480V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,350In Stock 3,000Expected 2027/03/11	Cut Tape $1.62 $0.897 $0.678 $0.531 Reel $0.391 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 510V 5% Uni-Directional 1.5SMC510A Littelfuse 1: $1.21 693In Stock 3,000Expected 2027/05/18	Mfr. Part No. 1.5SMC510A Mouser Part No 576-1.5SMC510A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 510V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	693In Stock 3,000Expected 2027/05/18	Cut Tape $1.21 $0.701 $0.569 $0.454 $0.424 Reel $0.397 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 510V 5% Bi-Directional 1.5SMC510CA Littelfuse 1: $1.54 3,410In Stock	Mfr. Part No. 1.5SMC510CA Mouser Part No 576-1.5SMC510CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 510V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	3,410In Stock	Cut Tape $1.54 $0.747 $0.644 $0.505 $0.479 Reel $0.429 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 530V 5% Uni-Directional 1.5SMC530A Littelfuse 1: $1.43 3,526In Stock	Mfr. Part No. 1.5SMC530A Mouser Part No 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 $1.43 $0.701 $0.599 $0.497 Reel $0.447 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 530V 5% Bi-Directional 1.5SMC530CA Littelfuse 1: $1.54 2,758In Stock	Mfr. Part No. 1.5SMC530CA Mouser Part No 576-1.5SMC530CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 530V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,758In Stock	Cut Tape $1.54 $0.747 $0.644 $0.505 $0.479 Reel $0.429 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 550V 5% Uni-Directional 1.5SMC550A Littelfuse 1: $1.58 397In Stock 9,000On Order	Mfr. Part No. 1.5SMC550A Mouser Part No 576-1.5SMC550A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 550V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	397In Stock 9,000On Order On Order Ship Dates Mfr. No: 1.5SMC550A Stock: 397 Can Dispatch Immediately On Order: 3,000 Expected 2027/05/14 6,000 Expected 2027/05/17 Factory Lead Time: 34 Weeks	Cut Tape $1.58 $0.816 $0.661 $0.518 Reel $0.397 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 56V 5% Bi-Directional 1.5SMC56CA Littelfuse 1: $1.16 824In Stock 9,000Expected 2026/10/26	Mfr. Part No. 1.5SMC56CA Mouser Part No 576-1.5SMC56CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 56V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	824In Stock 9,000Expected 2026/10/26	Cut Tape $1.16 $0.626 $0.473 $0.366 Reel $0.263 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 6.8V 5% Bi-Directional 1.5SMC6.8CA Littelfuse 1: $1.23 567In Stock 9,000Expected 2027/04/26	Mfr. Part No. 1.5SMC6.8CA Mouser Part No 576-1.5SMC6.8CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 6.8V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	567In Stock 9,000Expected 2027/04/26	Cut Tape $1.23 $0.64 $0.502 $0.388 $0.351 Reel $0.261 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 62V 5% Uni-Directional 1.5SMC62A Littelfuse 1: $1.04 3,337In Stock 3,000Expected 2027/04/26	Mfr. Part No. 1.5SMC62A Mouser Part No 576-1.5SMC62A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 62V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	3,337In Stock 3,000Expected 2027/04/26	Cut Tape $1.04 $0.478 $0.423 $0.326 $0.317 Reel $0.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 68V 5% Uni-Directional 1.5SMC68A Littelfuse 1: $1.10 3,212In Stock	Mfr. Part No. 1.5SMC68A Mouser Part No 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 $1.10 $0.515 $0.413 $0.324 $0.308 Reel $0.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 68V 5% Bi-Directional 1.5SMC68CA Littelfuse 1: $1.15 2,068In Stock 3,000Expected 2027/05/12	Mfr. Part No. 1.5SMC68CA Mouser Part No 576-1.5SMC68CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 68V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,068In Stock 3,000Expected 2027/05/12	Cut Tape $1.15 $0.54 $0.468 $0.361 $0.342 Reel $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 7.5V 5% Uni-Directional 1.5SMC7.5A Littelfuse 1: $1.10 1,954In Stock	Mfr. Part No. 1.5SMC7.5A Mouser Part No 576-1.5SMC7.5A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 7.5V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,954In Stock	Cut Tape $1.10 $0.515 $0.447 $0.347 $0.328 Reel $0.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 7.5V 5% Bi-Directional 1.5SMC7.5CA Littelfuse 1: $1.14 2,924In Stock	Mfr. Part No. 1.5SMC7.5CA Mouser Part No 576-1.5SMC7.5CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 7.5V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,924In Stock	Cut Tape $1.14 $0.535 $0.465 $0.361 $0.331 Reel $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 75V 5% Uni-Directional 1.5SMC75A Littelfuse 1: $1.10 2,867In Stock 3,000Expected 2027/04/26	Mfr. Part No. 1.5SMC75A Mouser Part No 576-1.5SMC75A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 75V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,867In Stock 3,000Expected 2027/04/26	Cut Tape $1.10 $0.515 $0.447 $0.347 $0.328 Reel $0.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 75V 5% Bi-Directional 1.5SMC75CA Littelfuse 1: $1.16 1,203In Stock 6,000Expected 2026/10/13	Mfr. Part No. 1.5SMC75CA Mouser Part No 576-1.5SMC75CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 75V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,203In Stock 6,000Expected 2026/10/13	Cut Tape $1.16 $0.626 $0.473 $0.366 Reel $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 8.2V 5% Uni-Directional 1.5SMC8.2A Littelfuse 1: $1.10 2,851In Stock	Mfr. Part No. 1.5SMC8.2A Mouser Part No 576-1.5SMC8.2A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 8.2V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,851In Stock	Cut Tape $1.10 $0.515 $0.447 $0.347 $0.308 Reel $0.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 82V 5% Uni-Directional 1.5SMC82A Littelfuse 1: $1.10 1,086In Stock 3,000Expected 2027/04/20	Mfr. Part No. 1.5SMC82A Mouser Part No 576-1.5SMC82A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 82V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,086In Stock 3,000Expected 2027/04/20	Cut Tape $1.10 $0.515 $0.447 $0.347 $0.308 Reel $0.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 9.1V 5% Uni-Directional 1.5SMC9.1A Littelfuse 1: $1.10 1,794In Stock	Mfr. Part No. 1.5SMC9.1A Mouser Part No 576-1.5SMC9.1A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 9.1V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,794In Stock	Cut Tape $1.10 $0.515 $0.447 $0.347 $0.328 Reel $0.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 91V 5% Uni-Directional 1.5SMC91A Littelfuse 1: $1.08 575In Stock	Mfr. Part No. 1.5SMC91A Mouser Part No 576-1.5SMC91A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 91V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	575In Stock	Cut Tape $1.08 $0.515 $0.44 $0.358 $0.333 Reel $0.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 200W 10V 5% Uni-directional SMF10A Littelfuse 1: $0.54 7,031In Stock 9,000Expected 2027/02/22	Mfr. Part No. SMF10A Mouser Part No 576-SMF10A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 10V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	7,031In Stock 9,000Expected 2027/02/22	Cut Tape $0.54 $0.254 $0.212 $0.166 Reel $0.104 View $0.154 $0.09 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 10V SMF10CA Littelfuse 1: $0.60 6,514In Stock 12,000Expected 2027/01/25	Mfr. Part No. SMF10CA Mouser Part No 576-SMF10CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 10V Learn More about Littelfuse smf tvs diodes	Datasheet	6,514In Stock 12,000Expected 2027/01/25	Cut Tape $0.60 $0.272 $0.234 $0.18 Reel $0.113 View $0.173 $0.107 $0.104 MouseReel Available	Min.: 1 Mult.: 1 : 3,000

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