SPF 1000VDC Solar Fuses

Littelfuse SPF (Solar Protection Fuse) 1000VDC Solar Fuses have been specifically designed for the ever-increasing voltage requirements of photovoltaic (PV) systems. The SPF series is UL recognized to safely interrupt circuits up to 1000VDC maximum. These midget fuses (10mm x 38mm) safety protect PV modules and their conductors from reverse overcurrent conditions. Littelfuse SPF 1000VDC Solar Fuses are available in 1A to 30A ratings to match specific requirements in a variety of applications, including inverters, combiner boxes, and battery charge controllers.

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Littelfuse Industrial & Electrical Fuses 1000VDC 1AMP Midget
Datasheet
156In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 1 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Holder Clip 5AG Without Indicator Bulk SPF
Littelfuse Industrial & Electrical Fuses 1000 VDC 12 AMP MIDGET FUSE
Datasheet
230In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 12 A 1 kVAC Fast-Acting Fuses 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Without Indicator Bulk 9.93 mOhms SPF


Littelfuse Industrial & Electrical Fuses 1000VDC 2AMP Midget
Datasheet
155In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 2 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Holder Clip 5AG Without Indicator Bulk SPF
Littelfuse Industrial & Electrical Fuses 1000VDC 12AMP Midget
Datasheet
497In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 12 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Holder Clip 5AG Without Indicator Bulk SPF


Littelfuse Industrial & Electrical Fuses 1000VDC 1AMP Midget PCB Tabs
Datasheet
91In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 1 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Through Hole Radial Blade 5AG Without Indicator Bulk SPF
Littelfuse Industrial & Electrical Fuses 1000VDC 25AMP Midget PCB Tabs
Datasheet
104In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 25 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Through Hole Radial Blade 5AG Without Indicator Bulk SPF
Littelfuse Industrial & Electrical Fuses 1000 VDC 1 AMP MIDGET FUSE
Datasheet
571In Stock
140Expected 8/4/2026
Min.: 1
Mult.: 1

Solar Protection Fuses 1 A 1 kVAC Fast-Acting Fuses 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Without Indicator Bulk 645 mOhms SPF
Littelfuse Industrial & Electrical Fuses 1000VDC 3AMP Midget PCB Tabs
Datasheet
107In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 3 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Through Hole Radial Blade 5AG Without Indicator Bulk SPF
Littelfuse Industrial & Electrical Fuses 1000 VDC 3 AMP MIDGET FUSE
Datasheet
585In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 3 A 1 kVAC Fast-Acting Fuses 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Without Indicator Bulk 110 mOhms SPF
Littelfuse Industrial & Electrical Fuses 1000VDC 4AMP Midget PCB Tabs
Datasheet
180In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 4 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Through Hole Radial Blade 5AG Without Indicator Bulk SPF
Littelfuse Industrial & Electrical Fuses 1000 VDC 4 AMP MIDGET FUSE
Datasheet
671In Stock
650Expected 9/11/2026
Min.: 1
Mult.: 1

Solar Protection Fuses 4 A 1 kVAC Fast-Acting Fuses 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Without Indicator Bulk 61.27 mOhms SPF


Littelfuse Industrial & Electrical Fuses 1000VDC 5AMP Midget PCB Tabs
Datasheet
287In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 5 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Through Hole Radial Blade 5AG Without Indicator Bulk SPF
Littelfuse Industrial & Electrical Fuses 1000 VDC 5 AMP MIDGET FUSE
Datasheet
163In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 5 A 1 kVAC Fast-Acting Fuses 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Without Indicator Bulk 40.86 mOhms SPF
Littelfuse Industrial & Electrical Fuses 1000 VDC 6 AMP MIDGET FUSE
Datasheet
300In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 6 A 1 kVAC Fast-Acting Fuses 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Without Indicator Bulk 28.1 mOhms SPF
Littelfuse Industrial & Electrical Fuses 1000VDC 15AMP Midget
Datasheet
131In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 15 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Holder Clip 5AG Without Indicator Bulk SPF
Littelfuse Industrial & Electrical Fuses 1000 VDC 15 AMP MIDGET FUSE
Datasheet
415In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 15 A 1 kVAC Fast-Acting Fuses 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Without Indicator Bulk 7.99 mOhms SPF
Littelfuse Industrial & Electrical Fuses 1000 VDC 20 AMP MIDGET FUSE
Datasheet
258In Stock
570Expected 8/12/2026
Min.: 1
Mult.: 1

Solar Protection Fuses 20 A 1 kVAC Fast-Acting Fuses 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Without Indicator Bulk 4.5 mOhms SPF
Littelfuse Industrial & Electrical Fuses 1000VDC 30AMP Midget PCB Tabs
Datasheet
150In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 30 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Through Hole Radial Blade 5AG Without Indicator Bulk SPF
Littelfuse Industrial & Electrical Fuses 1000VDC 6AMP Midget PCB Tabs
Datasheet
205In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 6 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Through Hole Radial Blade 5AG Without Indicator Bulk SPF
Littelfuse Industrial & Electrical Fuses 1000VDC 8AMP Midget
Datasheet
304In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 8 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Holder Clip 5AG Without Indicator Bulk SPF


Littelfuse Industrial & Electrical Fuses 1000VDC 8AMP Midget PCB Tabs
Datasheet
317In Stock
200Expected 8/5/2026
Min.: 1
Mult.: 1

Solar Protection Fuses 8 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Through Hole Radial Blade 5AG Without Indicator Bulk SPF
Littelfuse Industrial & Electrical Fuses 1000VDC 10AMP Midget PCB Tabs
Datasheet
291In Stock
200Expected 9/24/2026
Min.: 1
Mult.: 1

Solar Protection Fuses 10 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Through Hole Radial Blade 5AG Without Indicator Bulk SPF


Littelfuse Industrial & Electrical Fuses 1000VDC 25AMP Midget
Datasheet
127In Stock
Min.: 1
Mult.: 1

Solar Protection Fuses 25 A 1 kVAC Fast-Acting Fuses 1 kVDC Cartridge Fuses Holder Clip 5AG Without Indicator Bulk SPF
Littelfuse Industrial & Electrical Fuses 1000 VDC 2 AMP MIDGET FUSE
Datasheet
36In Stock
80Expected 9/7/2026
Min.: 1
Mult.: 1

Solar Protection Fuses 2 A 1 kVAC Fast-Acting Fuses 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Without Indicator Bulk 237 mOhms SPF
Littelfuse Industrial & Electrical Fuses 1000 VDC 8 AMP MIDGET FUSE
Datasheet
7In Stock
40Expected 9/17/2026
Min.: 1
Mult.: 1

Solar Protection Fuses 8 A 1 kVAC Fast-Acting Fuses 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Without Indicator Bulk 17.8 mOhms SPF