520 Series Metric OMNI-BLOK® Fuse Blocks

Littelfuse 520 Series Metric OMNI-BLOK® Fuse Blocks are low-profile designs available with a choice of solder-type terminals, NEMA-style QC terminals, or PC board mountable terminals. These fuse block designs consist of tin-plated brass terminals. The 520 series fuse blocks provide self-alignment of the clips to the fuse caps. These fuse blocks feature a one-piece clip/terminal and an anti-one-piece clip/terminal design, which assures low contact resistance. The 520 series fuse blocks incorporate 1500V minimum dielectric strength. These fuse blocks come in 5mm × 20mm size. The 520 series fuse blocks feature UL 94V-0 flammability rating and are RoHS compliant.

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Description Datasheet Availability Pricing (CLP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Fuse Size / Group
Type
Mounting Style
Number of Poles
Current Rating
Voltage Rating
Termination Style
Minimum Operating Temperature
Maximum Operating Temperature
Packaging


Littelfuse Fuse Holder 5x20mm PCB Mount
Datasheet
26.660In Stock
15.000Expected 12/3/2026
$2.415
$2.039
$1.880
$1.549
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Min.: 1
Mult.: 1
520 Fuse Blocks 5 mm x 20 mm Low Profile PCB Mount 1 Pole 10 A 600 V PC Pin - 40 C + 85 C Bulk
Littelfuse Fuse Holder Fuse Block 5x20mm 20A 600 VDC/VAC, Q.C. NEMA .110", Green 483In Stock
$4.386
$3.999
$3.862
$3.030
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Min.: 1
Mult.: 1
520 Fuse Blocks PCB Mount 20 A 600 VAC/600 VDC Bulk
Littelfuse Fuse Holder Fuse Block 5x20mm 20A 600 VDC/VAC, Solder, Green 481In Stock
$4.477
$4.079
$3.931
$3.087
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Min.: 1
Mult.: 1
520 Fuse Blocks PCB Mount 20 A 600 VAC/600 VDC Bulk
Littelfuse Fuse Holder Fuse Block 5x20mm 20A 600 VDC/VAC, Q.C. NEMA .110", Blue 437In Stock
$4.306
$3.919
$3.782
$2.962
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Min.: 1
Mult.: 1
520 Fuse Blocks PCB Mount 20 A 600 VAC/600 VDC Bulk
Littelfuse Fuse Holder 5x20mm QC Term
Datasheet
3.883In Stock
$2.438
$2.142
$1.971
$1.641
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Min.: 1
Mult.: 1
520 Fuse Blocks 5 mm x 20 mm Low Profile Panel Mount 1 Pole 10 A 600 V Quick Connect - 40 C + 85 C Bulk
Littelfuse Fuse Holder 5x20mm Sldr Termo
Datasheet
129In Stock
6.202On Order
$2.780
$2.313
$2.142
$1.777
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Min.: 1
Mult.: 1
520 Fuse Blocks 5 mm x 20 mm Low Profile Panel Mount 1 Pole 10 A 600 V Solder Lug - 40 C + 85 C Bulk
Littelfuse Fuse Holder 5x20mm QC Term
Datasheet
143In Stock
$2.176
$1.857
$1.732
$1.481
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Min.: 1
Mult.: 1
520 Fuse Blocks 5 mm x 20 mm Low Profile Panel Mount 1 Pole 10 A 600 V Quick Connect - 40 C + 85 C Bulk