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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 (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
ESD Protection Diodes / TVS Diodes SMF - CA 12V SMF12CA Littelfuse 1: $0.83 38,219In Stock	Mfr. Part No. SMF12CA Mouser Part No 576-SMF12CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 12V Learn More about Littelfuse smf tvs diodes	Datasheet	38,219In Stock	Cut Tape $0.83 $0.37 $0.325 $0.245 Reel $0.163 $0.143 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 13V SMF13CA Littelfuse 1: $0.802 29,855In Stock	Mfr. Part No. SMF13CA Mouser Part No 576-SMF13CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 13V Learn More about Littelfuse smf tvs diodes	Datasheet	29,855In Stock	Cut Tape $0.802 $0.37 $0.313 $0.245 Reel $0.155 View $0.223 $0.154 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 14V SMF14CA Littelfuse 1: $0.83 18,570In Stock 27,000On Order	Mfr. Part No. SMF14CA Mouser Part No 576-SMF14CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 14V Learn More about Littelfuse smf tvs diodes	Datasheet	18,570In Stock 27,000On Order On Order Ship Dates Mfr. No: SMF14CA Stock: 18,570 Can Dispatch Immediately On Order: 3,000 Expected 5/11/2026 24,000 Expected 1/12/2026 Factory Lead Time: 18 Weeks	Cut Tape $0.83 $0.37 $0.325 $0.245 Reel $0.154 View $0.242 $0.141 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 15V SMF15CA Littelfuse 1: $0.816 46,819In Stock 48,000Expected 15/12/2026	Mfr. Part No. SMF15CA Mouser Part No 576-SMF15CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 15V Learn More about Littelfuse smf tvs diodes	Datasheet	46,819In Stock 48,000Expected 15/12/2026	Cut Tape $0.816 $0.37 $0.318 $0.245 Reel $0.154 View $0.235 $0.14 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 16V SMF16CA Littelfuse 1: $0.816 58,393In Stock 216,000On Order	Mfr. Part No. SMF16CA Mouser Part No 576-SMF16CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 16V Learn More about Littelfuse smf tvs diodes	Datasheet	58,393In Stock 216,000On Order On Order Ship Dates Mfr. No: SMF16CA Stock: 58,393 Can Dispatch Immediately On Order: 114,000 Expected 24/11/2026 102,000 Expected 21/12/2026 Factory Lead Time: 18 Weeks	Cut Tape $0.816 $0.37 $0.318 $0.245 Reel $0.163 View $0.235 $0.159 $0.143 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 200W 24V 5% Uni-directional SMF24A Littelfuse 1: $0.694 64,633In Stock 42,000Expected 18/2/2027	Mfr. Part No. SMF24A Mouser Part No 576-SMF24A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 24V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	64,633In Stock 42,000Expected 18/2/2027	Cut Tape $0.694 $0.324 $0.284 $0.214 Reel $0.133 View $0.196 $0.117 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 24V SMF24CA Littelfuse 1: $0.816 16,107In Stock 33,000On Order	Mfr. Part No. SMF24CA Mouser Part No 576-SMF24CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 24V Learn More about Littelfuse smf tvs diodes	Datasheet	16,107In Stock 33,000On Order On Order Ship Dates Mfr. No: SMF24CA Stock: 16,107 Can Dispatch Immediately On Order: 15,000 Expected 19/2/2027 18,000 Expected 22/2/2027 Factory Lead Time: 18 Weeks	Cut Tape $0.816 $0.37 $0.321 $0.245 Reel $0.154 View $0.233 $0.14 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 200W 26V 5% Uni-directional SMF26A Littelfuse 1: $0.694 54,248In Stock	Mfr. Part No. SMF26A Mouser Part No 576-SMF26A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 26V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	54,248In Stock	Cut Tape $0.694 $0.324 $0.276 $0.212 Reel $0.133 View $0.194 $0.117 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 28V SMF28CA Littelfuse 1: $0.857 14,951In Stock 6,000Expected 19/11/2026	Mfr. Part No. SMF28CA Mouser Part No 576-SMF28CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 28V Learn More about Littelfuse smf tvs diodes	Datasheet	14,951In Stock 6,000Expected 19/11/2026	Cut Tape $0.857 $0.445 $0.332 $0.25 Reel $0.173 View $0.154 $0.146 $0.14 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 30V SMF30CA Littelfuse 1: $0.802 14,134In Stock 33,000On Order	Mfr. Part No. SMF30CA Mouser Part No 576-SMF30CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 30V Learn More about Littelfuse smf tvs diodes	Datasheet	14,134In Stock 33,000On Order On Order Ship Dates Mfr. No: SMF30CA Stock: 14,134 Can Dispatch Immediately On Order: 15,000 Expected 24/11/2026 18,000 Expected 2/3/2027 Factory Lead Time: 18 Weeks	Cut Tape $0.802 $0.37 $0.313 $0.245 Reel $0.154 View $0.223 $0.15 $0.14 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 200W 40V 5% Uni-directional SMF40A Littelfuse 1: $0.721 54,808In Stock 39,000Expected 20/4/2027	Mfr. Part No. SMF40A Mouser Part No 576-SMF40A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 40V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	54,808In Stock 39,000Expected 20/4/2027	Cut Tape $0.721 $0.324 $0.284 $0.214 Reel $0.133 View $0.208 $0.132 $0.117 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMF - CA 43V SMF43CA Littelfuse 1: $0.802 16,371In Stock	Mfr. Part No. SMF43CA Mouser Part No 576-SMF43CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 43V Learn More about Littelfuse smf tvs diodes	Datasheet	16,371In Stock	Cut Tape $0.802 $0.37 $0.313 $0.245 Reel $0.155 View $0.223 $0.154 $0.14 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 200W 45V 5% Uni-directional SMF45A Littelfuse 1: $0.748 41,957In Stock 39,000Expected 7/4/2027	Mfr. Part No. SMF45A Mouser Part No 576-SMF45A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 45V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	41,957In Stock 39,000Expected 7/4/2027	Cut Tape $0.748 $0.341 $0.29 $0.219 Reel $0.143 View $0.14 $0.131 $0.122 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 200W 6V 5% Uni-directional SMF6.0A Littelfuse 1: $0.707 21,365In Stock 42,000Expected 3/11/2026	Mfr. Part No. SMF6.0A Mouser Part No 576-SMF6.0A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 6V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	21,365In Stock 42,000Expected 3/11/2026	Cut Tape $0.707 $0.377 $0.33 $0.248 Reel $0.155 View $0.212 $0.133 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 200W 70V 5% Uni-directional SMF70A Littelfuse 1: $0.748 24,192In Stock	Mfr. Part No. SMF70A Mouser Part No 576-SMF70A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 70V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	24,192In Stock	Cut Tape $0.748 $0.389 $0.29 $0.212 Reel $0.133 View $0.207 $0.129 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 100V 5% Uni-Directional 1.5SMC100A Littelfuse 1: $1.54 3,694In Stock	Mfr. Part No. 1.5SMC100A Mouser Part No 576-1.5SMC100A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 100V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	3,694In Stock	Cut Tape $1.54 $0.707 $0.626 $0.481 $0.475 Reel $0.33 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 110V 5% Bi-Directional 1.5SMC110CA Littelfuse 1: $1.66 281In Stock	Mfr. Part No. 1.5SMC110CA Mouser Part No 576-1.5SMC110CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 110V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	281In Stock	Cut Tape $1.66 $0.889 $0.677 $0.547 $0.522 Reel $0.36 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 11V 5% Bi-Directional 1.5SMC11CA Littelfuse 1: $1.52 2,130In Stock	Mfr. Part No. 1.5SMC11CA Mouser Part No 576-1.5SMC11CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 11V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,130In Stock	Cut Tape $1.52 $0.951 $0.623 $0.481 $0.437 Reel $0.369 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 120V 5% Uni-Directional 1.5SMC120A Littelfuse 1: $1.71 1,062In Stock	Mfr. Part No. 1.5SMC120A Mouser Part No 576-1.5SMC120A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 120V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	1,062In Stock	Cut Tape $1.71 $1.07 $0.70 $0.514 Reel $0.409 View $0.468 $0.404 $0.355 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 120V 5% Bi-Directional 1.5SMC120CA Littelfuse 1: $1.78 2,177In Stock	Mfr. Part No. 1.5SMC120CA Mouser Part No 576-1.5SMC120CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 120V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,177In Stock	Cut Tape $1.78 $1.12 $0.732 $0.566 Reel $0.456 View $0.479 $0.43 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 12V 5% Bi-Directional 1.5SMC12CA Littelfuse 1: $1.67 57In Stock 3,000Expected 22/4/2027	Mfr. Part No. 1.5SMC12CA Mouser Part No 576-1.5SMC12CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 12V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	57In Stock 3,000Expected 22/4/2027	Cut Tape $1.67 $0.87 $0.65 $0.502 $0.477 Reel $0.347 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 130V 5% Uni-Directional 1.5SMC130A Littelfuse 1: $1.28 789In Stock	Mfr. Part No. 1.5SMC130A Mouser Part No 576-1.5SMC130A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 130V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	789In Stock	Cut Tape $1.28 $0.589 $0.521 $0.403 Reel $0.355 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 130V 5% Bi-Directional 1.5SMC130CA Littelfuse 1: $1.86 17In Stock	Mfr. Part No. 1.5SMC130CA Mouser Part No 576-1.5SMC130CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 130V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	17In Stock	Cut Tape $1.86 $1.17 $0.883 $0.662 $0.596 Reel $0.40 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 13V 5% Uni-Directional 1.5SMC13A Littelfuse 1: $1.60 45In Stock 3,000Expected 27/10/2026	Mfr. Part No. 1.5SMC13A Mouser Part No 576-1.5SMC13A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 13V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	45In Stock 3,000Expected 27/10/2026	Cut Tape $1.60 $0.894 $0.636 $0.514 $0.507 Reel $0.328 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 13V 5% Bi-Directional 1.5SMC13CA Littelfuse 1: $1.31 2,978In Stock	Mfr. Part No. 1.5SMC13CA Mouser Part No 576-1.5SMC13CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 13V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,978In Stock	Cut Tape $1.31 $0.605 $0.537 $0.481 Reel $0.378 View $0.437 $0.369 MouseReel Available	Min.: 1 Mult.: 1 : 3,000

Auxiliary Power Supply

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