Document 383-1 SMT Power Inductors – MSS7341 • 6.6 × 6.6 mm footprint; 4.1 mm high shielded inductors • Low DCR and excellent current handling Designer’s Kit C385 contains 3 each of all values. Core material Ferrite Core and winding loss See www.coilcraft.com/coreloss Terminations RoHS compliant gold over nickel over phos bronze. Other terminations available at additional cost. Weight: 0.61 – 0.67 g 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 1200/13″ reel; Plastic tape: 16 mm wide, 0.35 mm thick, 12 mm pocket spacing, 4.5 mm pocket depth PCB washing Only pure water or alcohol recommended Part number1 MSS7341-332NL_ MSS7341-502NL_ MSS7341-622NL_ MSS7341-742NL_ MSS7341-872NL_ MSS7341-103ML_ MSS7341-123ML_ MSS7341-153ML_ MSS7341-183ML_ MSS7341-223ML_ MSS7341-273ML_ MSS7341-333ML_ MSS7341-393ML_ MSS7341-473ML_ MSS7341-563ML_ MSS7341-683ML_ MSS7341-823ML_ MSS7341-104ML_ MSS7341-224ML_ MSS7341-474ML_ DCR Inductance2 max (µH) (Ohms) 3.3 ±30% 0.020 5.0 ±30% 0.024 6.2 ±30% 0.027 7.4 ±30% 0.031 8.7 ±30% 0.034 10 ±20% 0.038 12 ±20% 0.053 15 ±20% 0.057 18 ±20% 0.078 22 ±20% 0.082 27 ±20% 0.109 33 ±20% 0.124 39 ±20% 0.138 47 ±20% 0.155 56 ±20% 0.202 68 ±20% 0.276 82 ±20% 0.324 100 ±20% 0.358 220 ±20% 0.780 470 ±20% 1.45 SRF typ3 (MHz) 58.0 46.0 42.0 40.0 35.0 32.0 26.2 24.0 22.5 21.5 19.0 18.0 17.0 14.2 13.4 12.0 11.0 10.5 5.0 3.0 10% drop 2.74 2.30 2.18 1.92 1.78 1.64 1.48 1.36 1.20 1.02 1.00 0.91 0.85 0.74 0.68 0.62 0.57 0.54 0.35 0.24 Isat (A)4 20% 30% drop drop 3.28 3.72 2.82 3.16 2.66 2.98 2.32 2.56 2.12 2.36 1.92 2.10 1.76 1.92 1.60 1.78 1.46 1.62 1.26 1.42 1.14 1.22 1.04 1.16 1.01 1.12 0.92 1.00 0.80 0.87 0.73 0.80 0.66 0.72 0.64 0.71 0.41 0.47 0.28 0.32 Irms (A)5 20°C 40°C rise rise 3.95 5.00 3.40 4.70 3.05 4.30 2.80 4.10 2.80 3.90 2.80 3.80 2.45 3.30 2.05 3.00 1.85 2.65 1.70 2.35 1.50 2.10 1.50 1.95 1.50 1.90 1.50 1.85 1.25 1.60 1.00 1.35 1.00 1.25 0.90 1.15 0.57 0.78 0.43 0.57 1. Please specify termination and packaging codes: MSS7341-474MLD 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 (1200 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 measured at 100 kHz, 0.1 Vrms, 0 Adc using a Coilcraft SMD-A fixture in an Agilent/HP 4263B LCR meter. 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 from 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 383-1 Revised 10/20/09 Document 383-2 SMT Power Inductors – MSS7341 Typical L vs Current Typical L vs Frequency 1000 100 µH 100 Inductance (µH) Inductance (µH) 1000 33 µH 10 µH 10 100 µH 100 33 µH 10 µH 10 3.3 µH 3.3 µH 1.0 0.01 1.0 0.1 10.0 1.0 0.01 0.287 * 7,3 50 0.287* 7,3 3.3 µ H 10 µH 33 µ H 100 µH Temperature rise (from 25°C) 10.0 Frequency (MHz) Temperature Rise vs Current 40 1.0 0.1 Current (A) Dash number 123 X Internal code Parts manufactured prior to Sept. 2007 were marked with only the dash number. * Dimensions are of the case not including the termination. For maximum overall dimensions including the termination, add 0.02 in / 0,51 mm. 30 0.161 max 4,1 20 10 0.260 typ 6,6 0.280 7,1 0.083 typ 2,1 0 0 1.0 2.0 3.0 4.0 5.0 0.099 2,5 6.0 0.181 4,6 0.260 typ 6,6 Current (A rms) Irms Derating 120 110 Dimensions are in inches mm Recommended Land Pattern 90 80 70 60 50 40 25°C Percent of rated Irms 100 30 20 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 383-2 Revised 10/20/09