Document 889-1 Shielded Coupled Inductors MSD1583 Excellent coupling coefficient (k 0.98) and 500 Vrms isolation makes the MSD1583 series of coupled inductors ideal for use in a variety of circuits including flyback, multi- output buck, SEPIC and Zeta. These parts provide high inductance, high efficiency and excellent current handling. In SEPIC topologies, the required inductance for each winding is half the value needed for two separate induc- tors, allowing selection of a part with lower DCR and higher current handling. + + D C V L1 L2 OUT C V IN SW Typical Flyback Converter + D V OUT C AUX L2 0.590 0.020 15,0 0,5 ++ Dot indicates pin1 L1 123E V V C OUT 0.590 0.020 D IN Dash number SW 15,0 0,5 X Internal code Typical Buck Converter with auxiliary output D 0.339 ++ max 8,60 L1 C1 V C Q L2 C OUT V IN 0.220 5,6 Typical SEPIC schematic 1 2 3 4 0.331 0.126 L1 L2 8,4 3,2 2 1 ++ 3 4 L2 C1 Q V 0.075 D V CC OUT L1 IN 1,9 0.165 0.146 4,2 3,7 Typical Zeta schematic 2 1 0.311 Recommended If board traces 7,9 Land Pattern are runin these 3 4 areas, consider masking them to prevent shorting. 0.091 2,3 inches Dimensions are in mm Document 889-1 Revised 1/5/16 US +1-847-639-6400 sales coilcraft.com UK +44-1236-730595 sales coilcraft-europe.com Coilcraft Inc. 2017 This product may not be used in medical or high Taiwan +886-2-2264 3646 sales coilcraft.com.tw risk applications without prior Coilcraft approval. China +86-21-6218 8074 sales coilcraft.com.cn Specification subject to change without notice. Singapore + 65-6484 8412 sales coilcraft.com.sg Please check web site for latest information.Document 889-2 MSD1583 Shielded Coupled Inductors for SEPIC applications 5 Isat (A) Irms (A) SRF Coupling Leakage 3 2 DCR (Ohms) 4 Inductance typ coefficient inductance 10% 20% 30% both one 1 6 7 Part number (H) typ max (MHz) typ typ (H) drop drop drop windings winding MSD1583-103ME 10 20% 0.026 0.031 16.0 0.98 0.33 11.7 13.3 14.5 3.68 5.20 MSD1583-123ME 12 20% 0.029 0.037 14.5 0.98 0.36 10.6 12.1 13.2 3.54 5.00 MSD1583-153ME 15 20% 0.039 0.045 12.0 0.99 0.38 9.50 10.8 11.8 3.18 4.50 MSD1583-183ME 18 20% 0.042 0.048 11.5 0.99 0.40 8.70 9.90 10.8 3.04 4.30 MSD1583-223ME 22 20% 0.054 0.065 10.5 0.99 0.40 7.90 8.95 9.80 2.44 3.45 MSD1583-333ME 33 20% 0.083 0.095 8.0 0.99 0.54 6.40 7.30 8.00 2.16 3.05 MSD1583-473ME 47 20% 0.100 0.115 7.1 0.99 0.46 5.40 6.10 6.70 1.98 2.80 MSD1583-683ME 68 20% 0.145 0.165 5.7 0.99 0.79 4.50 5.10 5.50 1.56 2.20 MSD1583-104KE 100 10% 0.230 0.260 5.1 >0.99 0.59 3.70 4.20 4.60 1.24 1.75 MSD1583-154KE 150 10% 0.340 0.380 3.7 >0.99 0.70 3.00 3.42 3.75 1.06 1.50 MSD1583-224KE 220 10% 0.420 0.460 3.2 >0.99 0.89 2.50 2.83 3.10 0.92 1.30 MSD1583-474KE 470 10% 0.950 1.04 2.2 >0.99 1.16 1.70 1.93 2.12 0.65 0.92 MSD1583-105KE 1000 10% 2.20 2.40 1.6 >0.99 2.02 1.17 1.32 1.45 0.42 0.60 1. When ordering, please specify termination and packaging codes: 5. DC current at which the inductance drops the specified amount from its value without current. It is the sum of the current flowing in both windings. MSD1583-105KED 6. Equal current when applied to each winding simultaneously that causes a 40C temperature rise from 25C ambient. This information is Termination: E = RoHS compliant matte tin over nickel over phos bronze. for reference only and does not represent absolute maximum ratings. Special order: Q = RoHS tin-silver-copper (95.5/4/0.5) To predict temperature rise go to online calculator. or P = non-RoHS tin-lead (63/37). 7. Maximum current when applied to one winding that causes a 40C Packaging: D = 13 machine-ready reel. EIA-481 embossed plastic temperature rise from 25C ambient. This information is for reference tape (300 parts per full reel). only and does not represent absolute maximum ratings. o predict B = Less than full reel. In tape, but not machine ready. temperature rise go to online calculator. To have a leader and trailer added ( 25 charge), 8. Electrical specifications at 25C. use code letter D instead. Refer to Doc 639 Selecting Coupled Inductors for SEPIC Applications. 2. Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, Refer to Doc 362 Soldering Surface Mount Components before soldering. 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads are connected in parallel, inductance is the same value. When leads are connected in series, inductance is four times the value. 3. DCR is for each winding. When leads are connected in parallel, DCR is Coupled Inductor Core and Winding Loss Calculator half the value. When leads are connected in series, DCR is twice the value. This web-based utility allows you to enter frequency, peak-to-peak 4. SRF measured using an Agilent/HP 4191A or equivalent. When leads (ripple) current, and Irms current to predict temperature rise and overall are connected in parallel, SRF is the same value. losses, including core loss. Go to online calculator. Typical L vs Current Typical L vs Frequency 10000 10000 1000 H 470 H 220 H 1000 1000 H 1000 150 H 470 H 100 H 220 H 47 H 150 H 100 100 22 H 100 H 15 H 47 H 10 H 22 H 15 H 10 10 10 H 1 1 0.1 1 10 100 0.1 1 10 100 Current (A) Frequency (MHz) Document 889-2 Revised 1/5/16 US +1-847-639-6400 sales coilcraft.com UK +44-1236-730595 sales coilcraft-europe.com Coilcraft Inc. 2017 This product may not be used in medical or high Taiwan +886-2-2264 3646 sales coilcraft.com.tw risk applications without prior Coilcraft approval. China +86-21-6218 8074 sales coilcraft.com.cn Specification subject to change without notice. Singapore + 65-6484 8412 sales coilcraft.com.sg Please check web site for latest information. Inductance (H) Inductance (H)