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| Document 322-1 SMT Power Inductors - MSS1278 * 12.3 x 12.3 mm footprint; 8 mm high shielded inductors * Low DCR and excellent current handling Designer's Kit C380 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 phos bronze. Other terminations available at additional cost. Weight: 3.8 - 4.6 g Ambient temperature -40C to +85C with Irms current, +85C to +125C with derated current Storage temperature Component: -40C to +125C. Packaging: -40C to +80C Resistance to soldering heat Max three 40 second reflows at +260C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C / 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 500/13 reel; Plastic tape: 24 mm wide, 0.4 mm thick, 16 mm pocket spacing, 8.1 mm pocket depth PCB washing Only pure water or alcohol recommended DCR3 (mOhms) typ max 8.8 13.9 15.7 19.1 20.3 21.8 23.2 27.9 30.8 35.5 45.0 61.9 69.1 72.3 80.2 91.3 125.9 135.1 182.3 216.5 229.0 323.6 415.6 487.3 533.6 9.8 15.5 17.5 21.3 22.6 24.3 25.8 31.0 34.3 39.5 50.0 68.8 76.8 80.4 89.2 101.5 139.9 150.2 202.6 240.6 254.5 359.6 461.8 541.5 592.9 Isat (A)5 Irms (A)6 SRF typ4 10% 20% 30% 20C 40C (MHz) drop drop drop rise rise 80.0 30.0 24.0 21.0 20.0 17.0 15.0 13.0 12.0 11.0 10.0 9.5 8.5 7.5 7.0 6.5 5.0 4.5 4.3 4.1 4.0 3.4 3.1 2.9 2.7 2.2 2.0 1.7 1.4 1.3 25.2 13.7 12.2 11.3 10.1 28.6 15.2 13.7 12.7 11.5 30.6 15.9 14.6 13.7 12.3 7.00 4.30 4.30 4.20 4.10 4.00 3.70 3.50 3.00 2.90 2.60 2.30 2.10 2.00 1.90 1.80 1.60 1.50 1.40 1.30 1.20 1.00 0.90 0.80 0.75 0.66 0.60 0.55 0.50 0.48 10.00 6.20 6.20 6.00 5.90 5.70 5.20 4.90 4.50 4.00 3.60 3.10 3.00 2.90 2.70 2.60 2.30 2.20 1.90 1.80 1.70 1.60 1.20 1.00 1.00 0.90 0.80 0.75 0.70 0.68 1. Please specify termination and packaging codes: MSS1278-105KLD Termination: L =RoHS compliant matte tin 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 (500 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 using an Agilent/HP 4263B LCR meter or equivalent. 3. DCR measured on a micro-ohmmeter and a Coilcraft CCF858 test fixture. 4. SRF measured using an Agilent/HP 4191A or equivalent. 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 25C ambient. 7. Electrical specifications at 25C. Refer to Doc 362 "Soldering Surface Mount Components" before soldering. Part number1 MSS1278-142ML_ MSS1278-472ML_ MSS1278-562ML_ MSS1278-682ML_ MSS1278-822ML_ MSS1278-103ML_ MSS1278-123ML_ MSS1278-153ML_ MSS1278-183ML_ MSS1278-223ML_ MSS1278-273ML_ MSS1278-333ML_ MSS1278-393ML_ MSS1278-473ML_ MSS1278-563ML_ MSS1278-683ML_ MSS1278-823ML_ MSS1278-104ML_ MSS1278-124KL_ MSS1278-154KL_ MSS1278-184KL_ MSS1278-224KL_ MSS1278-274KL_ MSS1278-334KL_ MSS1278-394KL_ Inductance2 (H) 1.4 20% 4.7 20% 5.6 20% 6.8 20% 8.2 20% 10 20% 12 20% 15 20% 18 20% 22 20% 27 20% 33 20% 39 20% 47 20% 56 20% 68 20% 82 20% 100 20% 120 10% 150 10% 180 10% 220 10% 270 10% 330 10% 390 10% 9.36 10.6 11.2 8.84 10.0 10.7 7.30 8.36 9.00 6.10 7.10 7.74 6.04 6.78 7.24 5.80 5.22 4.68 4.40 4.02 3.40 3.12 2.88 2.62 2.48 2.26 1.96 1.74 1.66 1.52 1.34 1.24 1.16 1.04 0.97 6.56 5.90 5.42 5.02 4.60 3.86 3.58 3.28 3.00 2.86 2.58 2.22 2.04 1.86 1.72 1.54 1.42 1.28 1.16 1.10 7.02 6.30 5.80 5.32 4.90 4.26 3.80 3.52 3.24 3.02 2.74 2.36 2.18 2.00 1.88 1.64 1.50 1.38 1.26 1.14 MSS1278-474KL_ 470 10% MSS1278-564KL_ 560 10% MSS1278-684KL_ 680 10% MSS1278-824KL_ 820 10% MSS1278-105KL_ 1000 10% 707.5 786.2 777.4 863.8 1045 1162 1166 1296 1334 1483 Specifications subject to change without notice. Please check our website for latest information. Document 322-1 Revised 12/01/08 (c) Coilcraft, Inc. 2009 Document 322-2 SMT Power Inductors - MSS1278 Typical L vs Current 10000 Typical L vs Frequency 10000 1000 H 1000 1000 1000 H Inductance (H) Inductance (H) 100 100 H 100 H 100 10 H 10 4.7 H 10 10 H 4.7 H 1 0.1 1 10 100 1 0.01 0.1 1 10 Current (A) Frequency (MHz) Typical Current Derating 120 110 0.484 max 12,3 Percent of rated current 100 90 80 70 60 50 40 0.484 max 12,3 123 X Dash number Internal code Parts manufactured prior to Sept. 2007 were marked with only the dash number. 0.317 max 8,05 25C 30 20 10 0 -40 -20 Isat Irms 0 20 0.197 5,0 0.025 0,635 Recommended Land Pattern 0.217 5,5 0.157 4,0 40 60 80 100 120 140 0.138 3,5 0.197 5,0 Ambient temperature (C) 0.334 8,5 Dimensions are in inches mm Specifications subject to change without notice. Please check our website for latest information. Document 322-2 Revised 12/01/08 (c) Coilcraft, Inc. 2009 |
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