Document 495-1 SMT Power Inductors – Series MSS5121 • Low profile shielded power inductors • Low DCR, excellent current handling and low cost Designer’s Kit C411 contains 3 of each value Core material Ferrite Terminations RoHS compliant gold over nickel over phos bronze. Other terminations available at additional cost. Weight 141 – 147 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 600/7″ reel, 2500/13″ reel; Plastic tape: 12 mm wide, 0.35 mm thick, 8 mm pocket spacing, 3.25 mm pocket depth PCB washing Only pure water or alcohol recommended Part number1 MSS5121-222ML_ MSS5121-332ML_ MSS5121-472ML_ MSS5121-562ML_ MSS5121-682ML_ MSS5121-822ML_ MSS5121-103ML_ MSS5121-123ML_ MSS5121-153ML_ MSS5121-183ML_ MSS5121-223ML_ MSS5121-273ML_ MSS5121-333ML_ MSS5121-393ML_ MSS5121-473ML_ MSS5121-563ML_ MSS5121-683ML_ MSS5121-823ML_ MSS5121-104ML_ MSS5121-124ML_ MSS5121-154ML_ MSS5121-184ML_ MSS5121-224ML_ MSS5121-274ML_ MSS5121-334ML_ MSS5121-394ML_ DCR Inductance2 max ±20% (µH) (Ohms) 2.2 0.050 3.3 0.070 4.7 0.095 5.6 0.100 6.8 0.110 8.2 0.135 10 0.160 12 0.190 15 0.280 18 0.300 22 0.330 27 0.420 33 0.480 39 0.530 47 0.750 56 0.860 68 1.00 82 1.20 100 1.40 120 1.60 150 2.10 180 2.31 220 3.10 270 3.50 330 4.00 390 5.00 SRF typ3 (MHz) 120.0 90.0 80.0 73.0 65.0 55.0 47.0 41.0 37.0 35.0 32.0 27.0 25.0 23.0 22.0 19.0 18.0 15.0 13.5 12.0 9.0 8.5 7.5 7.0 6.5 5.8 10% drop 1.86 1.62 1.38 1.28 1.10 1.06 0.98 0.87 0.76 0.71 0.68 0.61 0.58 0.48 0.44 0.40 0.37 0.35 0.28 0.26 0.26 0.21 0.21 0.18 0.17 0.15 Isat (A)4 20% 30% drop drop 2.10 2.30 1.84 2.00 1.54 1.66 1.42 1.54 1.28 1.38 1.22 1.32 1.08 1.18 0.99 1.05 0.85 0.90 0.81 0.87 0.77 0.82 0.69 0.74 0.64 0.67 0.54 0.58 0.51 0.54 0.46 0.49 0.42 0.46 0.40 0.42 0.32 0.35 0.30 0.32 0.29 0.31 0.25 0.27 0.24 0.25 0.20 0.22 0.19 0.20 0.17 0.19 Irms (A)5 20°C 40°C rise rise 2.1 2.9 1.7 2.3 1.4 1.9 1.3 1.8 1.2 1.6 1.1 1.5 0.99 1.3 0.91 1.2 0.82 1.1 0.75 1.0 0.71 0.97 0.63 0.85 0.56 0.76 0.55 0.73 0.46 0.63 0.44 0.60 0.41 0.56 0.35 0.47 0.33 0.44 0.31 0.42 0.29 0.38 0.25 0.34 0.22 0.29 0.20 0.27 0.19 0.26 0.15 0.21 1. Please specify termination and packaging codes: MSS5121-394MLC 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: C= 7″ machine-ready reel. EIA-481 embossed plastic tape (600 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. Factory order only, not stocked (2500 parts per full reel). 2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using Coilcraft SMD-A fixture in an Agilent/HP 4284A impedance analyzer. 3. SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test fixture. 4. DC current at which the inductance drops the specified amount from its value without current. 5. Current that causes the specified temperature rise for 25°C ambient. 6. 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 495-1 Revised 10/20/09 Document 495-2 SMT Power Inductors – Series MSS5121 Typical L vs Current Typical L vs Frequency 1000 1000 390 µH 390 µH Inductance (µH) Inductance (µH) 120 µH 120 µH 100 47 µH 18 µH 10 6.8 µH 2.2 µH 1 100 47 µH 18 µH 10 6.8 µH 2.2 µH 1 0.1 0.1 0.01 0.1 1 10 0.1 1 Current (A) Current Derating 100 0.200 * 5,1 * Dimensions are of the case not 120 110 123 100 90 0.200* 5,1 including the termination. For maximum overall dimensions including the termination, add 0.035 in / 0,9 mm. 80 70 60 0.083 max 2,2 50 40 30 20 25°C Percent of rated current 10 Frequency (MHz) Isat Irms 10 0 -40 -20 0 0.181 4,6 0.200 5,08 0.069 1,74 20 40 60 80 Ambient temperature (°C) 100 120 140 inches Dimensions are in mm Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 0.131 3,34 0.063 0.181 1,6 4,6 Recommended Land Pattern Document 495-2 Revised 10/20/09