DELTA P/N : SI54 Series Mechanical dimensions Dimensions (Unit : mm) A 4.5 ± 0.15 B 4.0 ± 0.15 C 3.2 ± 0.3 D 1.0 ± 0.2 E 1.0 F 5.2 G 4.0 Electrical Characteristics @25℃ 1KHz,1.0V Delta P/N SI54-1R0 SI54A-1R0 SI54-1R5 SI54-1R8 SI54-2R2 SI54-2R7 SI54-3R3 SI54A-3R3 SI54-3R9 SI54-4R7 SI54A-4R7 SI54-5R6 SI54-6R8 SI54-8R2 SI54-100 SI54-120 SI54-150 SI54-180 SI54-220 SI54-270SI54-330 SI54-390 SI54-470 SI54A-470 SI54-560 SI54A-560 SI54-680 1. 2. 3. L1 (uH) 1.0 1.0 1.5 1.8 2.2 2.7 3.3 3.3 3.9 4.7 4.7 5.6 6.8 8.2 10 12 15 18 22 27 33 39 47 47 56 56 68 DCR (mΩ) MAX 48 20 56 63 71 78 86 86 93 108 108 125 131 146 182 210 235 338 378 522 540 587 844 844 937 937 1117 Irated2 (Adc) 2.7 5.6 2.6 2.0 1.9 1.8 1.7 2.9 1.6 1.5 2.5 1.4 1.3 1.2 1.1 0.97 0.85 0.74 0.68 0.62 0.56 0.52 0.44 0.77 0.42 0.75 0.37 Tolerance of inductance : ± 15% for 1.0~8.2uH, ± 10% for 10~68uH Irated is the DC current which cause the inductance drop less than 10%(20% for A-3R3 & A-4R7) of it’s nominal inductance without current and the surface temperature of the part increase less than 45 ℃. Operating temperature: -40℃ to 125℃ (Self-temperature rise included).