SMT Power Inductor SIG4018 Type Features RoHS compliant. Halogen free compliant. Low profile (1.8mm max. height ), SMD type. Shielded Self-leads, suitable for high density mounting. High energy storage. 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. Mechanical Dimension: RECOMMENDED PAD PATTERNS A C D B Electrical Characteristics: PART NO. D E L1 (uH) 3.7 1.2 2.8 UNIT : mm/inch A = 4.0 0.2 / 0.157 B = 4.0 0.2 / 0.157 C = 1.8/ 0.071 Max. D = 1.2 0.2 / 0.047 E = 2.5 0.2 / 0.098 25oC: 100KHz, 1.0V DCR (m ) Max. 2 Isat (Adc) Ir 3 (Adc) SIG4018 - 1R0 1.0 36 4.00 3.00 SIG4018 - 2R2 2.2 60 3.00 2.30 SIG4018 - 3R3 3.3 80 2.40 2.00 SIG4018 - 4R7 4.7 90 2.00 1.80 SIG4018 - 6R8 6.8 132 1.50 1.60 SIG4018 - 100 10.0 190 1.30 1.30 SIG4018 - 150 15.0 270 1.00 1.10 SIG4018 - 220 22.0 360 0.83 0.90 SIG4018 - 330 33.0 560 0.68 0.70 SIG4018 - 470 47.0 780 0.57 0.60 SIG4018 - 680 68.0 1200 0.47 0.47 SIG4018 - 101 100.0 1800 0.40 0.40 SIG4018 - 151 150.0 3000 0.31 0.31 SIG4018 - 221 220.0 3800 0.27 0.27 1. Tolerance of inductance: 20% for 1.0~220.0uH. 2. Isat is the DC current which cause the inductance drop 30% typical of its nominal inductance without current. 3. Ir is the DC current which cause the surface temperature of the part increase less than 40oC. 4. Rated current : Value obtained when current flows and the temperature has risen to 40oC or when DC current flows and the nominal value of inductance has fallen by 30%, whichever is smaller. 5. Operating temperature: -40oC to 125oC (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 23 0.008 0.008 0.008 0.008