Document 1190-1 Shielded Coupled Inductors MSD1048 Halogen Tight coupling (k 0.97) Free 200 V isolation Ideal for use in a variety of circuits including flyback, multi-output buck, SEPIC, uk and Zeta. High efficiency and excellent current handling AEC + Q200 85C Can also be used as two single inductors connected in series or parallel, as a common mode choke or as a 1 : 1 transformer. + + D C V L1 L2 OUT C V IN SW Typical Flyback Converter + D V OUT C AUX L2 0.406 ++ max 10,3 L1 V V C OUT D IN SW Dot indicates pin1 1 2 123 0.406 Dash number max L1 L2 Typical Buck Converter with auxiliary output 10,3 X Internal code 4 3 D ++ L1 C1 0.189 0.008* V V C Q L2 C OUT IN 4,8 0,2 Recommended LandPattern 0.118 0.130 Typical SEPIC schematic 3,0 3,3 3 4 2 1 ++ 0.228 0.213 0.079 0.094 L2 C1 5,8 5,4 2,0 2,4 Q 3 4 2 1 V D V CCL1 OUT IN 0.039 0.049 1,0 1.25 Typical Zeta schematic For optional tin-lead and tin-silver-copper * terminations, dimensions are for the mounted part.Dimensions before mounting canbe an additional 0.012 inch (0,3 mm). inches Dimensions are in mm Document 1190-1 Revised 11/09/15Document 1190-2 Shielded Coupled Inductors MSD1048 Series Irms (A) Coupling Leakage 2 3 4 5 6 Part Inductance DCR max SRF typ coefficient Inductance Isat both one 1 7 8 number (H) (Ohms) (MHz) typ typ (H) (A) windings winding MSD1048-222NE 2.2 30% 0.019 65 0.97 0.30 9.1 2.4 3.4 MSD1048-103ME 10 20% 0.053 27 >0.99 0.40 4.3 1.5 2.1 Halogen MSD1048-223ME 22 20% 0.098 17 >0.99 0.45 2.9 1.3 1.9 Free MSD1048-473ME 47 20% 0.208 12 >0.99 0.50 2.0 1.1 1.6 MSD1048-683ME 68 20% 0.297 9.0 >0.99 0.55 1.7 1.0 1.4 MSD1048-104ME 100 20% 0.387 7.3 >0.99 0.80 1.3 0.85 1.2 MSD1048-224KE 220 10% 0.840 4.8 >0.99 1.0 0.90 0.62 0.87 AEC + Q200 85C 1. When ordering, please specify termination and packaging codes: Coupled Inductor Core and Winding Loss Calculator This web-based utility allows you to enter frequency, peak-to-peak MSD1048-224KED (ripple) current, and Irms current to predict temperature rise and overall Termination: E = RoHS compliant matte tin over nickel over phos bronze. losses, including core loss. Go to online calculator. Special order: Q = RoHS tin-silver-copper (95.5/4/0.5) or P = non-RoHS tin-lead (63/37). Core material Ferrite Packaging: D = 13 machine-ready reel. EIA-481 embossed plastic tape. (800 parts per full reel). Core and winding loss Go to online calculator B = Less than full reel. In tape, but not machine ready. Terminations RoHS compliant matte tin over nickel over phos bronze. To have a leader and trailer added ( 25 charge), use Other terminations available at additional cost. code letter D instead. Weight: 1.5 1.8 g 2. Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads Ambient temperature 40C to +85C with (40C rise) Irms current. are connected in parallel, inductance is the same value. When leads are Maximum part temperature +125C (ambient + temp rise). connected in series, inductance is four times the value. Storage temperature Component: 40C to +125C. 3. DCR is for each winding. When leads are connected in parallel, DCR Tape and reel packaging: 40C to +80C is half the value. When leads are connected in series, DCR is twice the value. Winding-to-winding isolation 200 Vrms, one minute 4. SRF measured using an Agilent/HP 4191A or equivalent. When leads Resistance to soldering heat Max three 40 second reflows at are connected in parallel, SRF is the same value. +260C, parts cooled to room temperature between cycles 5. Leakage Inductance is for L1 and is measured with L2 shorted. Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C / 6. DC current at 25C that causes a 30% (typ) inductance drop from its 85% relative humidity) value without current. It is the sum of the current flowing in both wind - ings. Failures in Time (FIT) / Mean Time Between Failures (MTBF) 7. Equal current when applied to each winding simultaneously that causes 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 a 40C temperature rise from 25C ambient. This information is for refer- Packaging 800/13 reel Plastic tape: 24 mm wide, 0.35 mm thick, ence only and does not represent absolute maximum ratings. To predict 16 mm pocket spacing, 5.1 mm pocket depth temperature rise go to online calculator. PCB washing Tested to MIL-STD-202 Method 215 plus an additional 8. Maximum current when applied to one winding that causes a 40C tem- aqueous wash. See Doc787 PCB Washing.pdf. perature rise from 25C ambient. This information is for reference only and does not represent absolute maximum ratings. To predict tempera- ture rise go to online calculator. 9. Electrical specifications at 25C. Refer to Doc 639 Selecting Coupled Inductors for SEPIC Applications. Refer to Doc 362 Soldering Surface Mount Components before soldering. Document 1190-2 Revised 11/09/15