Document 380-1 SMT Power Inductor – ME3220 Series • Miniature power inductor: 2.5 × 3.2 base × 2.0 mm tall • Specified by NSC for their LM2830 Buck Converter Designer’s Kit C386 contains samples of all values Core material Ferrite Core and winding loss See www.coilcraft.com/coreloss Terminations RoHS matte tin over nickel over silver. Other terminations available at additional cost. Weight 56 – 65 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 2000/7″reel; 7000/13″ reel Plastic tape: 12 mm wide, 0.25 mm thick, 4 mm pocket spacing, 2.25 mm pocket depth PCB washing Only pure water or alcohol recommended Part number1 ME3220-102ML_ ME3220-152ML_ ME3220-222ML_ ME3220-332ML_ ME3220-472ML_ ME3220-562ML_ ME3220-682ML_ ME3220-822ML_ ME3220-103KL_ ME3220-123KL_ ME3220-153KL_ ME3220-183KL_ ME3220-223KL_ ME3220-273KL_ ME3220-333KL_ ME3220-393KL_ ME3220-473KL_ ME3220-563KL_ ME3220-683KL_ ME3220-823KL_ ME3220-104KL_ DCR Inductance2 max3 (µH) (Ohms) 1.0 ±20% 0.058 1.5 ±20% 0.068 2.2 ±20% 0.104 3.3 ±20% 0.138 4.7 ±20% 0.190 5.6 ±20% 0.200 6.8 ±20% 0.270 8.2 ±20% 0.290 10 ±10% 0.434 12 ±10% 0.470 15 ±10% 0.520 18 ±10% 0.696 22 ±10% 0.787 27 ±10% 1.19 33 ±10% 1.27 39 ±10% 1.38 47 ±10% 1.80 56 ±10% 2.10 68 ±10% 2.30 82 ±10% 3.00 100 ±10% 3.50 Irms (A)6 Isat (A)5 SRF typ4 10% 20% 30% 20°C 40°C (MHz) drop drop drop rise rise 170.7 2.7 3.0 3.2 2.0 2.6 138.0 2.2 2.5 2.7 1.6 2.2 92.6 1.8 2.1 2.2 1.5 2.0 75.6 1.5 1.6 1.7 1.4 1.6 58.2 1.2 1.4 1.5 1.0 1.3 52.5 1.1 1.3 1.4 1.0 1.3 46.2 1.0 1.1 1.2 0.88 1.1 45.2 0.98 1.0 1.1 0.80 1.0 39.9 0.78 1.0 1.1 0.63 0.87 37.5 0.76 0.88 0.98 0.61 0.84 32.5 0.70 0.80 0.90 0.58 0.83 31.7 0.66 0.75 0.80 0.49 0.70 29.4 0.59 0.67 0.71 0.47 0.64 26.1 0.56 0.63 0.67 0.40 0.54 23.0 0.50 0.57 0.60 0.39 0.53 22.6 0.45 0.51 0.54 0.34 0.47 20.7 0.40 0.46 0.49 0.30 0.45 20.3 0.37 0.42 0.45 0.27 0.43 16.3 0.34 0.38 0.41 0.26 0.38 13.7 0.30 0.34 0.36 0.25 0.34 13.3 0.28 0.32 0.34 0.24 0.32 1. Please specify termination and packaging codes: ME3220-104KLC Termination: L = RoHS matte tin over nickel over silver. Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (2000 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 C instead. D = 13″ machine-ready reel. EIA-481 embossed plastic tape (7000 parts per full reel). 2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using Coilcraft SMD-A fixture in Agilent/HP 4284A impedance analyzer. 3. DCR measured on a micro-ohmmeter and Coilcraft CCF858 test fixture. 4. SRF measured using Agilent/HP 8753D network analyzer and Coilcraft SMD-D test fixture. 5. DC current at which the inductance drops the specified amount from its value without current. 6. Current that causes the specified temperature rise from 25°C ambient. 7. 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 380-1 Revised 11/14/08 Document 380-2 SMT Power Inductor – ME3220 Series Typical L vs Frequency Typical L vs Current 1000 1000 100 µH 33 µH 10 µH 10 100 µH 100 Inductance (µH) Inductance (µH) 100 3.3 µH 1 µH 1 33 µH 10 µH 10 3.3 µH 1 µH 1 0.1 0.1 0.01 1 0.1 10 0.01 1 0.1 Frequency (MHz) 10 Current (A) Typical Temperature Rise vs Current 0.126 ±0.012 3,2 ±0,3 0.110 max 2,8 1. 0 µH 3.3 µH 10 µH 33 µH 40 100 µH Temperature rise (from 25°C) 50 30 0.098 ±0.008 2,5 ±0.2 20 10 0.079 ±0.016 2,0 ±0,4 Recommended Land Pattern 0 0 0.5 1.0 1.5 2.0 2.5 3.0 Current (A rms) 0.060 1,52 0.043 1,10 Current Derating 100 90 Dimensions are in 80 0.090 2,29 inches mm 70 60 50 40 30 20 25°C Percent of rated current 0.120 3,05 0.098 2,5 120 110 Isat Irms 10 0 -40 -20 0 20 40 60 80 100 120 140 Ambient temperature (°C) Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 380-2 Revised 11/14/08