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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Voltage Rating DC
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Littelfuse Industrial & Electrical Fuses 1000VDC 30AMP Midget PCB Tabs
Datasheet
481In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 30 A 1 kVAC Fast Blow 1 kVDC Cartridge Fuses Through Hole Radial Blade Bend 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 1000VDC 25AMP Midget
Datasheet
192In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 25 A 1 kVAC Fast Blow 1 kVDC Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 1000VDC 2AMP Midget
Datasheet
175In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 2 A 1 kVAC Fast Blow 1 kVDC Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 1000VDC 15AMP Midget PCB Tabs
Datasheet
146In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 15 A 1 kVAC Fast Blow 1 kVDC Cartridge Fuses Through Hole Radial Blade Bend 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 1000VDC 1AMP Midget PCB Tabs
Datasheet
25In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 1 A 1 kVAC Fast Blow 1 kVDC Cartridge Fuses Through Hole Radial Blade Bend 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 1000 VDC 25 AMP MIDGET FUSE
Datasheet
1.574In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 25 A 1 kVAC Fast Blow 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk 3.53 mOhms
Littelfuse Industrial & Electrical Fuses 1000 VDC 1 AMP MIDGET FUSE
Datasheet
412In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 1 A 1 kVAC Fast Blow 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk 645 mOhms
Littelfuse Industrial & Electrical Fuses 1000 VDC 3 AMP MIDGET FUSE
Datasheet
127In Stock
160Expected 2/23/2026
Min.: 1
Mult.: 1

SPF Specialty Fuses 3 A 1 kVAC Fast Blow 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk 110 mOhms
Littelfuse Industrial & Electrical Fuses 1000VDC 4AMP Midget PCB Tabs
Datasheet
242In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 4 A 1 kVAC Fast Blow 1 kVDC Cartridge Fuses Through Hole Radial Blade Bend 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 1000 VDC 4 AMP MIDGET FUSE
Datasheet
339In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 4 A 1 kVAC Fast Blow 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk 61.27 mOhms
Littelfuse Industrial & Electrical Fuses 1000 VDC 10 AMP MIDGET FUSE
Datasheet
177In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 10 A 1 kVAC Fast Blow 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk 12.5 mOhms
Littelfuse Industrial & Electrical Fuses 1000 VDC 12 AMP MIDGET FUSE
Datasheet
264In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 12 A 1 kVAC Fast Blow 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk 9.93 mOhms
Littelfuse Industrial & Electrical Fuses 1000VDC 15AMP Midget
Datasheet
154In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 15 A 1 kVAC Fast Blow 1 kVDC Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 1000 VDC 15 AMP MIDGET FUSE
Datasheet
394In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 15 A 1 kVAC Fast Blow 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk 7.99 mOhms
Littelfuse Industrial & Electrical Fuses 1000 VDC 20 AMP MIDGET FUSE
Datasheet
665In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 20 A 1 kVAC Fast Blow 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk 4.5 mOhms
Littelfuse Industrial & Electrical Fuses 1000 VDC 30 AMP MIDGET FUSE
Datasheet
141In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 30 A 1 kVAC Fast Blow 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk 2.84 mOhms
Littelfuse Industrial & Electrical Fuses 1000VDC 1AMP Midget
Datasheet
172In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 1 A 1 kVAC Fast Blow 1 kVDC Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 1000VDC 12AMP Midget
Datasheet
497In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 12 A 1 kVAC Fast Blow 1 kVDC Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 1000VDC 20AMP Midget PCB Tabs
Datasheet
136In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 20 A 1 kVAC Fast Blow 1 kVDC Cartridge Fuses Through Hole Radial Blade Bend 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 1000VDC 30AMP Midget
Datasheet
197In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 30 A 1 kVAC Fast Blow 1 kVDC Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 1000 VDC 2 AMP MIDGET FUSE
Datasheet
90In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 2 A 1 kVAC Fast Blow 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk 237 mOhms
Littelfuse Industrial & Electrical Fuses 1000VDC 3AMP Midget PCB Tabs
Datasheet
46In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 3 A 1 kVAC Fast Blow 1 kVDC Cartridge Fuses Through Hole Radial Blade Bend 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 1000VDC 5AMP Midget PCB Tabs
Datasheet
1In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 5 A 1 kVAC Fast Blow 1 kVDC Cartridge Fuses Through Hole Radial Blade Bend 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 1000 VDC 5 AMP MIDGET FUSE
Datasheet
119In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 5 A 1 kVAC Fast Blow 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk 40.86 mOhms
Littelfuse Industrial & Electrical Fuses 1000 VDC 6 AMP MIDGET FUSE
Datasheet
50In Stock
Min.: 1
Mult.: 1

SPF Specialty Fuses 6 A 1 kVAC Fast Blow 1 kVDC 20 kA Cartridge Fuses Holder Clip 5AG Midget (10.3 mm x 38.1 mm) Without Indicator Bulk 28.1 mOhms