Blade Fuses FK1 MINI ® STYLE BLADE FUSE RATED 32V Specifications Insulating Body: Out of thermoplastic (UL 94-V0, heat-resistant) Interrupting Rating: 1000 A @32 VDC Cover: Out of thermoplastic (V0, transparent) Visible melting-element Shunt: Red, not transparent Terminals: Blade contacts Copper alloy, gal. Sn plated Edge-protected Complies with: ISO 8820-3:2002(E) UL 248 Special Purpose Fuses cULus Recognized: File No. E10480 Ordering Information Part Number Package Size 168.6785.xxx2 8000 168.6785.xxx7 50 Description The FK1 32V automotive standard fuse link in a MINI® package. Three part construction with copper contacts for excellent reliability in harsh environment conditions with low voltage drop. Current ratings 1A thru 30A. See-through cover for easy detection of blown fuses. Time-Current Characteristics % of Rating Opening Time Min / Max (s) 110 360,000 s / – 135 0.75 s / 1,800 s 200 0.15 s / 5 s 350 0.040 s / 0.500 s 600 0.020 s / 0.100 s Ratings Part Number Current Rating Housing Color Typ. Voltage Drop Cold Resistance I2t 168.6785.410_ 1A 135 mV 100 mΩ 0.83 A²s 168.6785.420_ 2A 110 mV 43.0 mΩ 3.31 A²s 168.6785.430_ 3A 110 mV 27.0 mΩ 7.45 A²s 168.6785.440_ 4A 110 mV 21.3 mΩ 16.7 A²s 168.6785.450_ 5A 105 mV 16.2 mΩ 19.8 A²s 168.6785.475_ 7.5A 100 mV 9.70 mΩ 44.5 A²s 168.6785.510_ 10A 110 mV 7.40 mΩ 79.2 A²s 168.6785.515_ 15A 105 mV 4.50 mΩ 178 A²s 168.6785.520_ 20A* 100 mV 3.10 mΩ 331 A²s 168.6785.525_ 25A* 120 mV 2.60 mΩ 653 A²s 168.6785.530_ 30A* 105 mV 1.95 mΩ 1,264 A²s 160.6785.000_ Shunt* 60 mV 1.35 mΩ 1,800 A²s * No UL Certification Available Corresponding holder see Section “Fuse Holders.” www.littelfuse.com Blade Fuses FK1 MINI ® STYLE BLADE FUSE RATED 32V Dimensions Pre-Arcing Time-Limits Dimensions in mm FI = 1.33 (max. operating current: 0.75 x Irat at 23°C) www.littelfuse.com