SMT Power Inductor SI54 Type Features RoHS compliant. Low profile (3.5mm max. Height) SMD type. Unshielded. Self-leads, suitable for high density mounting. High energy storage and low DCR. Provided with embossed carrier tape packing. Ideal for power source circuits, DC-DC converter, DC-AC inverters inductor applications. In addition to the standard versions shown here, customized inductors are available to meet your exact requirements. RECOMMENDED PAD PATTERNS Mechanical Dimension: 4.0 C B A UNIT:mm/inch A = 4.5 0.15 / 0.177 0.006 B = 4.0 0.15 / 0.157 0.006 C = 3.2 0.3 / 0.126 0.012 D = 1.0 0.2 / 0.039 0.008 5.2 D 1.0 25oC, 1KHz, 1V L1 (uH) DCR ( ) MAX Irated 2 (Adc) SI54 - 1R0 1.0 0.0480 2.70 SI54A - 1R0 1.0 0.0200 5.60 SI54 - 1R5 1.5 0.0560 2.60 SI54 - 1R8 1.8 0.0630 2.00 SI54 - 2R2 2.2 0.0710 1.90 SI54 - 2R7 2.7 0.0780 1.80 SI54 - 3R3 3.3 0.0860 1.70 SI54A - 3R3 3.3 0.0860 2.90 SI54 - 3R9 3.9 0.0930 1.60 SI54 - 4R7 4.7 0.1080 1.50 SI54A - 4R7 0.3 0.0108 2.50 SI54 - 5R6 5.6 0.1250 1.40 SI54 - 6R8 6.8 0.1310 1.30 SI54 - 8R2 8.2 0.1460 1.20 SI54 - 100 10.0 0.1820 1.10 SI54 - 120 12.0 0.2100 0.97 SI54 - 150 15.0 0.2350 0.85 SI54 - 180 18.0 0.3380 0.74 SI54 - 220 22.0 0.3780 0.68 SI54 - 270 27.0 0.5220 0.62 SI54 - 330 33.0 0.5400 0.56 SI54 - 390 39.0 0.5870 0.52 SI54 - 470 47.0 0.8440 0.44 0.3 0.8440 0.77 56.0 0.9370 0.42 0.3 0.9370 0.75 68.0 1.1170 0.37 PART NO. SI54A - 470 SI54 - 560 SI54A - 560 SI54 - 680 100.00 10.00 INDUCTANCE (uH) Electrical Characteristics: 1.00 0.10 0.00 680 560 470 390 330 270 220 180 150 120 100 8R2 6R8 5R6 4R7 3R9 3R3 2R7 2R2 1R8 1R5 1R0 0.01 0.10 1.00 10.00 CURRENT (A) 1. Tolerance of inductance : 15% for 1.0~8.2uH, 10% for 10~68uH. 2. Irated is the DC current which cause the inductance drop less than 10%(20% for A-3R3 & A-4R7) of its nominal inductance without current and the surface temperature of the part increase less than 45oC. 3. Operating temperature: -20oC to 105oC (including self-temperature rise). DELTA ELECTRONICS, INC. (TAOYUAN PLANT CPBG) 252, SAN YING ROAD, KUEISAN INDUSTRIAL ZONE, TAOYUAN SHIEN, 333, TAIWAN, R.O.C. TEL: 886-3-3591968; FAX: 886-3-3591991 http://www.deltaww.com 4