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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 (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
ESD Protection Diodes / TVS Diodes 200W 11V 5% Uni-directional SMF11A Littelfuse 1: 0,456 € 5 428In Stock	Mfr. Part No. SMF11A Mouser Part No 576-SMF11A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 11V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	5 428In Stock	Cut Tape 0,456 € 0,205 € 0,18 € 0,135 € Reel 0,084 € View 0,122 € 0,074 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 200W 12V 5% Uni-directional SMF12A Littelfuse 1: 0,447 € 2 255In Stock 81 000On Order	Mfr. Part No. SMF12A Mouser Part No 576-SMF12A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 12V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	2 255In Stock 81 000On Order On Order Ship Dates Mfr. No: SMF12A Stock: 2 255 Can Dispatch Immediately On Order: 18 000 Expected 05/11/2026 27 000 Expected 14/12/2026 36 000 Expected 12/01/2027 Factory Lead Time: 20 Weeks	Cut Tape 0,447 € 0,199 € 0,174 € 0,131 € Reel 0,086 € View 0,128 € 0,074 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 200W 14V 5% Uni-directional SMF14A Littelfuse 1: 0,456 € 8 447In Stock 12 000Expected 28/12/2026	Mfr. Part No. SMF14A Mouser Part No 576-SMF14A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 14V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	8 447In Stock 12 000Expected 28/12/2026	Cut Tape 0,456 € 0,205 € 0,18 € 0,135 € Reel 0,084 € View 0,132 € 0,074 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - A 150V SMF150A Littelfuse 1: 0,568 € 12 324In Stock	Mfr. Part No. SMF150A Mouser Part No 576-SMF150A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - A 150V Learn More about Littelfuse smf tvs diodes	Datasheet	12 324In Stock	Cut Tape 0,568 € 0,256 € 0,225 € 0,17 € Reel 0,108 € View 0,165 € 0,094 € 0,093 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - A 160V SMF160A Littelfuse 1: 0,662 € 2 295In Stock	Mfr. Part No. SMF160A Mouser Part No 576-SMF160A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - A 160V Learn More about Littelfuse smf tvs diodes	Datasheet	2 295In Stock	Cut Tape 0,662 € 0,416 € 0,266 € 0,198 € 0,188 € Reel 0,101 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 200W 17V 5% Uni-directional SMF17A Littelfuse 1: 0,456 € 8 473In Stock	Mfr. Part No. SMF17A Mouser Part No 576-SMF17A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 17V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	8 473In Stock	Cut Tape 0,456 € 0,205 € 0,18 € 0,135 € Reel 0,084 € View 0,132 € 0,074 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - CA 17V SMF17CA Littelfuse 1: 0,525 € 3 285In Stock	Mfr. Part No. SMF17CA Mouser Part No 576-SMF17CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 17V Learn More about Littelfuse smf tvs diodes	Datasheet	3 285In Stock	Cut Tape 0,525 € 0,234 € 0,206 € 0,186 € Reel 0,117 € View 0,158 € 0,097 € 0,096 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 200W 18V 5% Uni-directional SMF18A Littelfuse 1: 0,473 € 2 606In Stock 15 000Expected 22/12/2026	Mfr. Part No. SMF18A Mouser Part No 576-SMF18A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 18V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	2 606In Stock 15 000Expected 22/12/2026	Cut Tape 0,473 € 0,218 € 0,191 € 0,143 € Reel 0,087 € View 0,128 € 0,085 € 0,077 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - CA 18V SMF18CA Littelfuse 1: 0,525 € 2 990In Stock 24 000On Order	Mfr. Part No. SMF18CA Mouser Part No 576-SMF18CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 18V Learn More about Littelfuse smf tvs diodes	Datasheet	2 990In Stock 24 000On Order On Order Ship Dates Mfr. No: SMF18CA Stock: 2 990 Can Dispatch Immediately On Order: 12 000 Expected 30/12/2026 12 000 Expected 02/03/2027 Factory Lead Time: 18 Weeks	Cut Tape 0,525 € 0,234 € 0,206 € 0,155 € Reel 0,097 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - A 200V SMF200A Littelfuse 1: 0,542 € 6 955In Stock	Mfr. Part No. SMF200A Mouser Part No 576-SMF200A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - A 200V Learn More about Littelfuse smf tvs diodes	Datasheet	6 955In Stock	Cut Tape 0,542 € 0,243 € 0,212 € 0,161 € Reel 0,105 € 0,093 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - A 220V SMF220A Littelfuse 1: 0,542 € 1 063In Stock	Mfr. Part No. SMF220A Mouser Part No 576-SMF220A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - A 220V Learn More about Littelfuse smf tvs diodes	Datasheet	1 063In Stock	Cut Tape 0,542 € 0,243 € 0,212 € 0,161 € Reel 0,101 € View 0,10 € 0,098 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 200W 22V 5% Uni-directional SMF22A Littelfuse 1: 0,473 € 2 992In Stock 48 000On Order	Mfr. Part No. SMF22A Mouser Part No 576-SMF22A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 22V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	2 992In Stock 48 000On Order On Order Ship Dates Mfr. No: SMF22A Stock: 2 992 Can Dispatch Immediately On Order: 9 000 Expected 05/11/2026 21 000 Expected 28/12/2026 18 000 Expected 19/04/2027 Factory Lead Time: 20 Weeks	Cut Tape 0,473 € 0,246 € 0,187 € 0,138 € Reel 0,089 € View 0,087 € 0,077 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - CA 22V SMF22CA Littelfuse 1: 0,525 € 2 885In Stock	Mfr. Part No. SMF22CA Mouser Part No 576-SMF22CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 22V Learn More about Littelfuse smf tvs diodes	Datasheet	2 885In Stock	Cut Tape 0,525 € 0,234 € 0,206 € 0,155 € Reel 0,097 € View 0,153 € 0,095 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - A 250V SMF250A Littelfuse 1: 0,654 € 2 641In Stock	Mfr. Part No. SMF250A Mouser Part No 576-SMF250A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - A 250V Learn More about Littelfuse smf tvs diodes	Datasheet	2 641In Stock	Cut Tape 0,654 € 0,291 € 0,255 € 0,193 € Reel 0,101 € View 0,164 € 0,099 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - CA 26V SMF26CA Littelfuse 1: 0,525 € 5 999In Stock 9 000Expected 02/03/2027	Mfr. Part No. SMF26CA Mouser Part No 576-SMF26CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 26V Learn More about Littelfuse smf tvs diodes	Datasheet	5 999In Stock 9 000Expected 02/03/2027	Cut Tape 0,525 € 0,234 € 0,206 € 0,186 € Reel 0,117 € View 0,158 € 0,097 € 0,096 € 0,095 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 200W 28V 5% Uni-directional SMF28A Littelfuse 1: 0,49 € 7 371In Stock 24 000Expected 01/03/2027	Mfr. Part No. SMF28A Mouser Part No 576-SMF28A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 28V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	7 371In Stock 24 000Expected 01/03/2027	Cut Tape 0,49 € 0,218 € 0,191 € 0,143 € Reel 0,089 € View 0,135 € 0,077 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 200W 33V 5% Uni-directional SMF33A Littelfuse 1: 0,473 € 117In Stock 36 000On Order	Mfr. Part No. SMF33A Mouser Part No 576-SMF33A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 33V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	117In Stock 36 000On Order On Order Ship Dates Mfr. No: SMF33A Stock: 117 Can Dispatch Immediately On Order: 15 000 Expected 11/01/2027 21 000 Expected 05/04/2027 Factory Lead Time: 20 Weeks	Cut Tape 0,473 € 0,218 € 0,188 € 0,14 € Reel 0,089 € View 0,126 € 0,077 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - CA 33V SMF33CA Littelfuse 1: 0,525 € 2 537In Stock 30 000Expected 02/12/2026	Mfr. Part No. SMF33CA Mouser Part No 576-SMF33CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 33V Learn More about Littelfuse smf tvs diodes	Datasheet	2 537In Stock 30 000Expected 02/12/2026	Cut Tape 0,525 € 0,234 € 0,206 € 0,155 € Reel 0,098 € View 0,153 € 0,097 € 0,096 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - CA 36V SMF36CA Littelfuse 1: 0,525 € 1 999In Stock 18 000On Order	Mfr. Part No. SMF36CA Mouser Part No 576-SMF36CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 36V Learn More about Littelfuse smf tvs diodes	Datasheet	1 999In Stock 18 000On Order On Order Ship Dates Mfr. No: SMF36CA Stock: 1 999 Can Dispatch Immediately On Order: 9 000 Expected 22/02/2027 9 000 Expected 09/03/2027 Factory Lead Time: 18 Weeks	Cut Tape 0,525 € 0,234 € 0,186 € 0,163 € Reel 0,097 € 0,089 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - CA 40V SMF40CA Littelfuse 1: 0,525 € 8 480In Stock 9 000Expected 24/11/2026	Mfr. Part No. SMF40CA Mouser Part No 576-SMF40CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 40V Learn More about Littelfuse smf tvs diodes	Datasheet	8 480In Stock 9 000Expected 24/11/2026	Cut Tape 0,525 € 0,234 € 0,206 € 0,155 € Reel 0,117 € View 0,153 € 0,095 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 200W 43V 5% Uni-directional SMF43A Littelfuse 1: 0,456 € 1 228In Stock 6 000On Order	Mfr. Part No. SMF43A Mouser Part No 576-SMF43A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 43V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	1 228In Stock 6 000On Order On Order Ship Dates Mfr. No: SMF43A Stock: 1 228 Can Dispatch Immediately On Order: 3 000 Expected 12/01/2027 3 000 Expected 03/03/2027 Factory Lead Time: 20 Weeks	Cut Tape 0,456 € 0,205 € 0,18 € 0,135 € Reel 0,084 € View 0,128 € 0,082 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - CA 45V SMF45CA Littelfuse 1: 0,636 € 813In Stock 3 000Expected 03/02/2027	Mfr. Part No. SMF45CA Mouser Part No 576-SMF45CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 45V Learn More about Littelfuse smf tvs diodes	Datasheet	813In Stock 3 000Expected 03/02/2027	Cut Tape 0,636 € 0,397 € 0,255 € 0,189 € Reel 0,114 € View 0,163 € 0,11 € 0,102 € 0,095 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 200W 48V 5% Uni-directional SMF48A Littelfuse 1: 0,49 € 16 565In Stock 15 000Expected 01/03/2027	Mfr. Part No. SMF48A Mouser Part No 576-SMF48A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 48V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	16 565In Stock 15 000Expected 01/03/2027	Cut Tape 0,49 € 0,218 € 0,191 € 0,143 € Reel 0,089 € 0,077 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes SMF - CA 48V SMF48CA Littelfuse 1: 0,55 € 143In Stock 36 000On Order	Mfr. Part No. SMF48CA Mouser Part No 576-SMF48CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF - CA 48V Learn More about Littelfuse smf tvs diodes	Datasheet	143In Stock 36 000On Order On Order Ship Dates Mfr. No: SMF48CA Stock: 143 Can Dispatch Immediately On Order: 21 000 Expected 21/12/2026 15 000 Expected 06/01/2027 Factory Lead Time: 18 Weeks	Cut Tape 0,55 € 0,249 € 0,218 € 0,164 € Reel 0,104 € View 0,158 € 0,089 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 200W 5V 5% Uni-directional SMF5.0A Littelfuse 1: 0,439 € 1 815In Stock 357 000On Order	Mfr. Part No. SMF5.0A Mouser Part No 576-SMF5.0A	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 5V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	1 815In Stock 357 000On Order On Order Ship Dates Mfr. No: SMF5.0A Stock: 1 815 Can Dispatch Immediately On Order: 75 000 Expected 04/03/2027 282 000 Expected 08/03/2027 Factory Lead Time: 20 Weeks	Cut Tape 0,439 € 0,205 € 0,175 € 0,134 € Reel 0,081 € View 0,118 € 0,08 € 0,071 € 0,07 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000

Auxiliary Power Supply

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