Cartridge and Axial Lead Fuses Fast-Acting Type > BLF Series BLF Series Fast-acting Midget / 5AG Size Fuse Description BLF fuses offer safe and reliable protection at a low price for its size, type and features. They are suitable for control circuit and instrument protection in dry (little to no humidity) locations. Specifications Body Material: Fiber Body Electrical Characteristics for Series % of Ampere Ampere Rating Opening Time Rating Agency Approvals 100% 0-30 Until temp stabilizes Agency Agency File Number Ampere Range 135% 030 1 hours, Maximum 200% 0-30 2 minutes, Maximum E10480 0.5A - 30A Electrical Specifications by Item LR 29862 0.5A - 30A Agency Max Nominal Amp Approvals Ordering Voltage Interrupting Cold Rating Number Rating Rating Resistance (A) (V) (Ohms) BLF .500 .500 1.57 x x 250 10,000 BLF 001 1 .395 x x amperes BLF 01.5 1.5 .2191 x x at rated BLF 002 2 .125 x x VAC. BLF 02.5 2.5 .0946 x x BLF 003 3 .0696 x x BLF 004 4 .0432 x x BLF 005 5 .0413 x x BLF 006 6 .02842 x x BLF 6.25 6.25 .02741 x x BLF 007 7 .02282 x x BLF 008 8 .01664 x x BLF 009 9 .01364 x x BLF 010 10 .0117 x x BLF 012 12 .00920 x x BLF 015 15 .00920 x x BLF 020 20 .00528 x x 125 BLF 025 25 .00378 x x BLF 030 30 .00289 x x 2016 Littelfuse, Inc. 13 BLF Series Specifications are subject to change without notice. Revised: April 12, 2021 Please refer to www.littelfuse.com/series/BLF.html for current information. Cartridge and Axial Lead Fuses Fast-Acting Type > BLF Series BLF Series, (1/2A - 4A) Temperature Rerating Curve Average Time Current Curves 1000 100 10 1 0.1 Dimensions 38.1 10.31 (1.50 ) 0.01 (.406 ) 0.1 1 10 1000 100 CURRENT IN AMPERES BLF Series, (5A - 7A) BLF Series, (8A - 30A) 1000 1000 100 100 10 10 1 1 0.1 0.1 0.01 0.01 0.1 1 10 1000 100 0.1 1 10 1000 100 CURRENT IN AMPERES CURRENT IN AMPERES 2016 Littelfuse, Inc.. BLF Series 14 Specifications are subject to change without notice. Revised: April 12, 2021 Please refer to www.littelfuse.com/series/BLF.html for current information. TIME IN SECONDS TIME IN SECONDS TIME IN SECONDS 1/2A 1A 1 1/2 2A 2 1/2A 3A 4A 6A 6 - 1/4A 9A 10A 12A 15A 20A 25A 30A 7A 8A 5A