Document 479-1 SMT Power Inductors – DO5040H • Heavy gauge wire and self-leaded terminations for low DCR • Saturation current ratings as high as 33.4 A DCR SRF4 Inductance2 max typ Isat4 Irms5 Part number1 (µH) (mOhms) (MHz) (A) (A) DO5040H-282ML_ 2.8 ±20% 5.2 DO5040H-392ML_ 3.9 ±20% 6.0 DO5040H-682ML_ 6.8 ±20% 9.0 DO5040H-103ML_ 10 ±20% 11 DO5040H-123ML_ 12 ±20% 13 DO5040H-153ML_ 15 ±20% 20 DO5040H-183ML_ 18 ±20% 22 DO5040H-223ML_ 22 ±20% 24 DO5040H-333ML_ 33 ±20% 37 DO5040H-473ML_ 47 ±20% 52 DO5040H-683ML_ 68 ±20% 67 DO5040H-104ML_ 100 ±20% 115 DO5040H-334KL_ 330 ±10% 325 DO5040H-684KL_ 680 ±10% 780 DO5040H-145KL_ 1400 ±10% 1300 65 40 30 22 21 18 14 13 10 8.0 7.0 6.0 3.0 1.6 1.0 33.4 26.8 22.5 17.8 15.9 13.8 13.2 11.8 9.6 7.8 6.7 5.6 3.0 2.0 1.5 12.1 11.2 9.6 8.6 7.4 6.5 6.0 5.7 4.5 3.7 3.4 2.8 1.5 1.1 0.7 Core material Ferrite Core and winding loss See www.coilcraft.com/coreloss Terminations RoHS compliant tin-silver (96.5/3.5) over copper. Other terminations available at additional cost. Weight 5.8 – 7.6 g (2.8 –12 µH); 5.7 – 7.0 g (15 –1400 µH) 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. 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 175 per 13″ reel 2.8 –12 µH parts Plastic tape: 44 mm wide, 0.5 mm thick, 24 mm pocket spacing, 12.8 mm pocket depth 15 –1400 µH parts Plastic tape: 32 mm wide, 0.4 mm thick, 24 mm pocket spacing, 12.1 mm pocket depth PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. 1. When ordering, please specify termination and packaging codes: DO5040H-104MLD Termination: L = RoHS compliant tin-silver (96.5/3.5) over copper. 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 (175 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. 2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using Coilcraft SMD‑A fixture in 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 10% (typ) from its value without current. 5. Current that causes a 40°C temperature rise from 25°C ambient. 6. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Document 479-1 Revised 02/25/15 Document 479-2 SMT Power Inductors - DO5040H Series Typical L vs Current Typical L vs Frequency 1000 100 µH 100 Inductance (µH) Inductance (µH) 1000 33 µH 12 µH 10 100 µH 100 33 µH 12 µH 10 2.8 µH 2.8 µH 1 1 0.1 Current (A) 10 100 Current Derating 1 0.001 0.01 0.1 Frequency (MHz) 1 10 2.8 µH – 12 µH 100 90 80 70 60 50 40 25°C Percent of rated current 120 110 30 20 10 0 Isat Irms -40 -20 0 20 40 60 80 100 120 140 Ambient temperature (°C) 15 µH – 1400 µH Dimensions are in inches mm Document 479-2 Revised 02/25/15