Document 356-1 SMT Power Inductors – SD43 Series • Rugged, cost-effective power inductors • Excellent current handling; low DCR • Values greater than 27 µH are 10% tolerance Core material Ferrite Terminations RoHS compliant tin-silver over tin over nickel over silver. Weight 0.17 – 0.20 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 +85°C. Tape and reel 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 500/7″ reel; 2000/13″ reel; Plastic tape: 12 mm wide, 0.35 mm thick, 8 mm pocket spacing, 3.4 mm pocket depth PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. Part number1 SD43-102ML_ SD43-142ML_ SD43-182ML_ SD43-222ML_ SD43-272ML_ SD43-332ML_ SD43-392ML_ SD43-472ML_ SD43-562ML_ SD43-682ML_ SD43-822ML_ SD43-103ML_ SD43-123ML_ SD43-153ML_ SD43-183ML_ SD43-223ML_ SD43-273ML_ SD43-333KL_ SD43-393KL_ SD43-473KL_ SD43-563KL_ SD43-683KL_ Inductance2 (µH) DCR max (mOhm) 1.0 ±20% 1.4 ±20% 1.8 ±20% 2.2 ±20% 2.7 ±20% 3.3 ±20% 3.9 ±20% 4.7 ±20% 5.6 ±20% 6.8 ±20% 8.2 ±20% 10.0 ±20% 12.0 ±20% 15.0 ±20% 18.0 ±20% 22.0 ±20% 27.0 ±20% 33.0 ±10% 39.0 ±10% 47.0 ±10% 56.0 ±10% 68.0 ±10% 33 38 42 47 52 58 76 94 101 110 132 182 210 235 338 378 522 540 587 844 937 1117 SRF typ3 (MHz) 100 90 80 65 60 50 47 45 40 35 30 28 24 22 19 17 16 14 13 12 11 10 1. When ordering, please specify packaging code: SD43-683KLC Packaging:C =7″ 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 C instead. D =13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (2000 parts per full reel). 10% drop 5.5 4.8 4.1 3.6 3.4 2.9 2.6 2.4 2.2 2.0 1.83 1.70 1.53 1.33 1.25 1.15 1.00 0.90 0.84 0.77 0.72 0.65 Isat (A)4 Irms (A)5 20% drop 30% drop 20°C rise 40°C rise 6.1 5.5 4.6 4.1 3.8 3.3 3.0 2.8 2.5 2.3 2.1 1.95 1.75 1.58 1.43 1.32 1.14 1.05 0.97 0.87 0.80 0.72 6.5 5.9 5.1 4.4 4.1 3.5 3.2 3.0 2.7 2.5 2.2 2.1 1.90 1.73 1.58 1.43 1.26 1.14 1.07 0.93 0.86 0.77 3.4 3.1 2.7 2.3 2.2 2.1 1.9 1.9 1.6 1.5 1.4 1.3 1.1 1.0 0.89 0.85 0.73 0.62 0.61 0.53 0.51 0.43 5.8 5.8 4.6 3.8 3.7 3.3 3.0 2.9 2.8 2.5 2.2 2.2 1.8 1.7 1.5 1.4 1.1 0.90 0.90 0.86 0.70 0.60 2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/ HP 4284A impedance analyzer. 3. SRF measured using Agilent/HP 8753D network analyzer and Coilcraft SMD‑D test fixture. 4 DC current at which the inductance drops the specified amount from its value without current. 5. Current the causes the specified temperature rise from25°C ambient. 6. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Document 356-1 Revised 12/12/14 Document 356-2 SMT Power Inductors – SD43 Series Typical L vs Current Typical L vs Frequency 1000 1000 100 68 µH Inductance (µH) Inductance (µH) 100 27 µH 8.2 µH 10 3.3 µH 1.0 µH 1 0.1 0.01 68 µH 27 µH 8.2 µH 10 3.3 µH 1.0 µH 1 1 0.1 10 0.1 0.01 1 0.1 10 Frequency (MHz) Current (A) Irms Derating 0.185 max 4,70 120 XXX 110 90 0.165 max 4,20 80 70 60 0.136 max 3,45 50 40 25°C Percent of rated Irms 100 30 20 Recommended Land Pattern 0.063 1,60 10 0.061 1,55 0 -40 -20 0 20 40 60 80 100 120 140 Ambient temperature (°C) 0.085 2,15 0.129 3,28 0.051 1,30 Dimensions are in 0.102 2,60 inches mm Document 356-2 Revised 12/12/14