Document 1308-1 Coupled Inductors MSD1514 Excellent coupling coefficient (k 0.97) Ideal for use in a variety of circuits including flyback, multi- output buck, SEPIC, Zeta, and uk. 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 inductors, 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 Core material Ferrite Core and winding loss Go to online calculator Environmental RoHS compliant, halogen free ++ Terminations RoHS compliant matte tin over nickel over phos L1 bronze. Other terminations available at additional cost. V V C OUT D IN SW Weight: 9.0 11.8 g Ambient temperature 40C to +85C with (40C rise) Irms current. Maximum part temperature +125C (ambient + temp rise). Typical Buck Converter with auxiliary output Storage temperature Component: 40C to +125C. Tape and reel packaging: 40C to +80C D Winding-to-winding isolation 500 Vrms, one minute ++ Resistance to soldering heat Max three 40 second reflows at L1 C1 +260C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C / V C Q L2 C OUT V IN 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 175/13 reel Plastic tape: 32 mm wide, 0.5 mm thick, Typical SEPIC schematic 24 mm pocket spacing, 14.3 mm pocket depth PCB washing Tested with pure water or alcohol only. For other solvents, see Doc787 PCB Washing.pdf. ++ L2 C1 Q V D V CC OUT L1 IN Typical Zeta schematic Document 1308-1 Revised 05/06/16 US +1-847-639-6400 sales coilcraft.com UK +44-1236-730595 sales coilcraft-europe.com Coilcraft Inc. 2018 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. Please check web site for latest information. Singapore + 65-6484 8412 sales coilcraft.com.sgDocument 1308-2 MSD1514 Coupled Inductors 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 MSD1514-252ME 2.5 20% 0.010 0.012 34.0 0.97 0.20 25.0 28.0 30.5 5.1 7.8 MSD1514-472ME 4.7 20% 0.012 0.014 25.0 0.98 0.20 19.5 21.8 23.7 4.5 7.6 MSD1514-103ME 10 20% 0.015 0.018 16.5 0.99 0.40 13.4 15.0 16.2 4.0 6.8 MSD1514-123ME 12 20% 0.018 0.022 14.5 0.99 0.40 12.2 13.7 14.8 3.7 6.6 MSD1514-153ME 15 20% 0.024 0.028 11.0 >0.99 0.42 10.9 12.2 13.3 3.4 5.8 MSD1514-223ME 22 20% 0.031 0.036 10.0 >0.99 0.45 9.00 10.1 11.0 3.0 5.1 MSD1514-273ME 27 20% 0.034 0.039 8.50 >0.99 0.45 8.14 9.13 9.90 2.95 4.7 MSD1514-333ME 33 20% 0.045 0.052 7.20 >0.99 0.45 7.40 8.20 9.00 2.55 3.9 MSD1514-473ME 47 20% 0.065 0.075 5.60 >0.99 0.55 6.20 6.90 7.50 2.20 3.45 MSD1514-683ME 68 20% 0.078 0.090 5.20 >0.99 0.55 5.10 5.70 6.20 2.00 3.20 MSD1514-104KE 100 10% 0.115 0.126 3.80 >0.99 0.55 4.20 4.75 5.15 1.65 2.50 MSD1514-224KE 220 10% 0.261 0.287 2.30 >0.99 0.70 2.85 3.20 3.50 1.10 1.70 MSD1514-334KE 330 10% 0.334 0.367 2.10 >0.99 0.80 2.33 2.61 2.83 0.98 1.55 MSD1514-474KE 470 10% 0.500 0.550 1.65 >0.99 1.2 1.95 2.20 2.40 0.77 1.30 MSD1514-105KE 1000 10% 1.12 1.25 1.10 >0.99 2.0 1.34 1.50 1.63 0.55 0.77 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 MSD1514-105KED (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). 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 D instead. 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 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 half the value. When leads are connected in series, DCR is twice the value. 4. SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value. 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. 6. Equal current when applied to each winding simultaneously that causes a 40C temperature rise from 25C ambient. Click for temperature derating information. 7. Maximum current when applied to one winding that causes a 40C temperature rise from 25C ambient. This information is for reference only and does not represent absolute maximum ratings. Click for temperature derating information. 8. 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 1308-2 Revised 05/06/16 US +1-847-639-6400 sales coilcraft.com UK +44-1236-730595 sales coilcraft-europe.com Coilcraft Inc. 2018 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. Please check web site for latest information. Singapore + 65-6484 8412 sales coilcraft.com.sg