Document 378-1 SMT Power Inductors – MSS1038 • 10.0 × 10.2 mm footprint; 3.8 mm high shielded inductors • Very low DCR and excellent current handling Designer’s Kit C391 contains 3 each of all values. Core material Ferrite Core and winding loss See www.coilcraft.com/coreloss Terminations RoHS compliant matte tin over nickel over copper. Other terminations available at additional cost. Weight: 1.5 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 250/7″ reel; 1000/13″ reel; Plastic tape: 24 mm wide, 0.35 mm thick, 16 mm pocket spacing, 4.3 mm pocket depth PCB washing Only pure water or alcohol recommended Inductance2 Part number1 (µH) MSS1038-102NL_ 1.0 ±30% MSS1038-152NL_ 1.5 ±30% MSS1038-252NL_ 2.5 ±30% MSS1038-382NL_ 3.8 ±30% MSS1038-522NL_ 5.2 ±30% MSS1038-702NL_ 7.0 ±30% MSS1038-103NL_ 10 ±30% MSS1038-123ML_ 12 ±20% MSS1038-153ML_ 15 ±20% MSS1038-183ML_ 18 ±20% MSS1038-223ML_ 22 ±20% MSS1038-273ML_ 27 ±20% MSS1038-333ML_ 33 ±20% MSS1038-393ML_ 39 ±20% MSS1038-473ML_ 47 ±20% MSS1038-563ML_ 56 ±20% MSS1038-683ML_ 68 ±20% MSS1038-823ML_ 82 ±20% MSS1038-104ML_ 100 ±20% MSS1038-124KL_ 120 ±10% MSS1038-154KL_ 150 ±10% MSS1038-184KL_ 180 ±10% MSS1038-224KL_ 220 ±10% MSS1038-274KL_ 270 ±10% MSS1038-334KL_ 330 ±10% MSS1038-394KL_ 390 ±10% MSS1038-474KL_ 470 ±10% MSS1038-564KL_ 560 ±10% MSS1038-684KL_ 680 ±10% MSS1038-824KL_ 820 ±10% MSS1038-105KL_ 1000 ±10% DCR max ⏲) (m⏲ 6.0 8.1 10 13 22 27 35 41 50 65 73 89 93 112 128 180 213 261 304 380 506 582 756 926 1090 1141 1243 1696 1926 2596 2853 Isat (A)4 SRF typ3 10% 20% 30% (MHz) drop drop drop 138 9.00 11.16 12.10 81 7.40 9.48 11.06 61 5.70 7.62 9.26 45 4.94 6.50 7.64 37 3.96 5.28 6.14 33 3.62 4.74 5.60 29 3.04 3.90 4.52 25 2.72 3.48 4.04 21 2.84 3.44 3.86 18 2.44 3.10 3.52 15 2.34 2.94 3.30 15 1.98 2.48 2.84 13 1.84 2.34 2.62 12 1.60 2.04 2.34 11 1.60 1.98 2.22 11 1.48 1.84 2.04 10 1.32 1.62 1.82 8 1.12 1.42 1.60 6 1.02 1.30 1.46 6 0.95 1.18 1.34 6 0.89 1.10 1.22 5 0.89 1.02 1.16 5 0.72 0.88 0.99 4 0.66 0.81 0.91 4 0.59 0.73 0.82 4 0.51 0.65 0.74 3 0.50 0.62 0.70 3 0.43 0.53 0.56 3 0.38 0.48 0.52 3 0.37 0.46 0.49 3 0.35 0.43 0.46 Irms (A)5 20°C 40°C rise rise 7.30 10.00 5.60 7.85 4.65 6.65 4.25 6.05 3.60 5.10 3.10 4.35 2.90 4.05 2.85 4.00 2.70 3.80 2.25 3.35 1.90 2.85 1.65 2.35 1.60 2.30 1.55 2.25 1.45 2.20 1.40 1.85 1.15 1.75 1.09 1.50 1.05 1.45 0.85 1.25 0.80 1.20 0.71 0.98 0.70 0.97 0.65 0.86 0.50 0.69 0.49 0.65 0.45 0.63 0.43 0.59 0.36 0.50 0.34 0.47 0.33 0.45 1. Please specify termination and packaging codes: MSS1038-105KLC Termination: L = RoHS compliant matte tin over nickel over copper. 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 (250 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 (1000 parts per full reel). 2. Inductance measured at 100 kHz, 1.0 Vrms, 0 Adc using an Agilent/HP 4263B LCR meter or equivalent. 3. SRF measured using an Agilent/HP 8753D or equivalent. 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 378-1 Revised 10/06/08 Document 378-2 SMT Power Inductors – MSS1038 Typical L vs Current Typical L vs Frequency 10000 10000 1000 µH 270 µH 100 µH 100 1000 µH 1000 Inductance (µH) Inductance (µH) 1000 27 µH 10 µH 10 270 µH 100 µH 100 27 µH 10 µH 10 1.5 µH 1.5 µH 1 1 0.01 1 0.1 10 0.01 1 0.1 Current (A) 10 Frequency (MHz) Typical Current Derating 0.402 ±0.012 10,2 ±0,3 100 90 Dash number 123 X Internal code Parts manufactured prior to Sept. 2007 were marked with only the dash number. 80 70 0.394 ±0.008 10,0 ±0,2 60 50 40 30 20 Isat Irms 10 0 -40 -20 0 0.150 ±0.008 3,8 ±0,2 25°C Percent of rated current 120 110 20 40 60 80 100 120 140 Recommended Land Pattern 0.047 ±0.008 1,2 ±0,2 Ambient temperature (°C) 0.37 9,40 0.303 ±0.008 7,7 ±0,2 Dimensions are in 0.07 1,78 inches mm Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 0.14 3,56 0.118 ±0.008 3,0 ±0,2 Document 378-2 Revised 10/06/08