Document 170-1 SMT Power Inductors – DO3308P Series • Handle saturating currents up to 4.2 Amps • Defense Supply Center CID: A-A-59738 Designer’s Kit C309 contains 3 each of all values Core material Ferrite Core and winding loss See www.coilcraft.com/coreloss Terminations RoHS gold over nickel over phos bronze. Other terminations available at additional cost. Weight 594 – 640 mg Ambient temperature –40°C to +85°C with Irms current, +85°C to +125°C with derated current Storage temperature Component: –40°C to +125°C. Packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging 1000/13″ reel Plastic tape: 24 mm wide, 0.4 mm thick, 12 mm pocket spacing, 3.7 mm pocket depth PCB washing Only pure water or alcohol recommended Part number1 DO3308P-472ML_ DO3308P-682ML_ DO3308P-103ML_ DO3308P-153ML_ DO3308P-223ML_ DCR L ±20%2 max (µH) (Ohms) 4.7 6.8 10 15 22 SRF typ (MHz) 1. When ordering, please specify termination and packaging codes: Isat3 (A) Irms4 (A) 0.036 0.060 0.085 0.12 0.18 50 47 37 35 26 4.2 3.9 2.7 2.3 1.8 3.2 2.6 2.3 1.9 1.5 DO3308P-333ML_ DO3308P-473ML_ DO3308P-683ML_ DO3308P-104ML_ DO3308P-154ML_ 33 47 68 100 150 0.25 0.32 0.54 0.69 0.94 19 14 12 11 9.0 1.6 1.3 1.1 0.87 0.74 1.2 1.0 0.9 0.73 0.62 DO3308P-224ML_ DO3308P-334ML_ DO3308P-474ML_ DO3308P-684ML_ DO3308P-105ML_ 220 330 470 680 1000 1.60 2.15 3.30 4.40 7.00 6.0 5.5 4.5 3.5 2.5 0.56 0.50 0.40 0.33 0.29 0.51 0.40 0.33 0.28 0.23 DO3308P-105MLD Termination: L = RoHS compliant gold over nickel over phos bronze. Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic tape (1000 parts per full reel). B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead. 2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc. 3. DC current at which inductance drops 10% (typ) from its value without current. 4. Current that causes a 40°C temperature rise from 25°C ambient. 5. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 170-1 Revised 10/08/08 Document 170-2 SMT Power Inductors – DO3308P Series Typical L vs Frequency Typical L vs Current 10000 10000 1000 µH 1000 µH 1000 Inductance (µH) Inductance (µH) 1000 100 µH 100 100 µH 100 10 µH 10 µH 10 10 1 1 0.01 1 0.1 10 0.01 10 Current (A) Irms Derating 0.330 dia 8,38 0.118 max* 3,00 120 110 an additional 0.02/0,508 * Allow in width and 0.01/0,254 in height for optional tin-lead and tin-silver-copper application. 0.510 max* 12,95 100 90 0.370 max 9,40 80 70 Recommended Land Pattern 60 0.145 3,69 0.100 2,54 50 0.110 2,79 0.115 2,92 40 25°C Percent of rated Irms 1 0.1 Frequency (MHz) 30 0.405 10,29 20 0.100 2,54 10 0 -40 -20 0 20 40 60 80 100 0.300 7,62 120 140 Internal code Ambient temperature (°C) XXX X Start Dash number Finish Part marking since Feb. 2005. Parts manufactured prior to that date may have color dots. Visit www.coilcraft.com/colrpowr.cfm for details. Dimensions are in inches mm Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 170-2 Revised 10/08/08