Cartridge Fuse Blocks 520 Series Metric OMNI-BLOK® Molded Base Fuse Block for 5×20mm Fuses RoHS Pb Product Characteristics Compatible Fuse Sizes 5×20mm Fuses Description The metric Omni-Blok® fuse block, for 5×20mm size fuses, is a low profile design that is available with a choice of solder type terminals, NEMA style QC terminals, or PC board mountable terminals. Each of these designs has tin plated brass terminals. A unique design feature provides self-alignment of the clips to the fuse caps. This feature, plus a one-piece clip/terminal design, assures low contact resistance. An anti-onepiece clip/terminal design, assures low contact resistance. An anti rotation feature is also available on the solder and QC terminal designs. Electrical UL/CSA VDE Solder Type — 10A, 600V., 6.3A, 250V Q.C. Type — 10A, 600V. 6.3A, 250V PCB Type — 10A, 600V. 6.3A, 250V Dielectric Strength 1500V., Minimum Clip/Terminals Tin-Plated Spring Brass Base Glass reinforced Thermoplastic. UL 94V0 flammability rating. Gray color (GY) for anti-rotational series, black color for all others. Ambient Temperature –40ºC to +85ºC Agency Approval Agency Agency File Number E14721 7316 97121 Additional Information Datasheet Resources Samples © 2016 Littelfuse, Inc. Application testing is strongly recommended. Specifications are subject to change without notice. Revised: 04/19/16 Cartridge Fuse Blocks Ordering Information Product Dimensions SolderTerminalsType: Ordering PN 10A Clip/ Terminal Material AntiRotation Boss .40” Brass No X X Solder Terminals Type .090" DIA. THRU .07"x.13 HOLE 0520 0004 Z 1.44" 520 004 Q.C. Terminals (NEMA Style .110”) Type 520 004 45 .54" .016" .50" .92" 0520 0003 Z 520 003 .40” Brass No 0520 0005 ZXGY 520 005 GY .40” Brass Yes .40” Brass No P.C. Board Mount Type .40" 0520 0101 Z Q.C.TerminalsType: 10A X X .110" 520 .090" DIA. THRU 1.44" 520 003 45 .54" .016" .92" .50" .40" 1.44" 520 005-GY 45 .54" .016" .428" Width (B) .110" 520 .040 DIA. Part Number .50" .40" .92" PC Board MountType: X X 10A 520 .50" .016" .03" STANDOFF 1.03" WITH A 5X20mm FUSE INSTALLED .950±.005 .18" .04" .40" .050" .055" TYP. RECOMMENDED HOLE PATTERN © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/19/16 520 101