Document 528-1 Shielded Coupled Inductors MSD1260 Tight coupling (k 0.98) AEC + Q200 85C 500 Vrms, one minute isolation (hipot) between windings Ideal for use in a variety of circuits including flyback, multi-output buck, SEPIC and Zeta. High inductance, high efficiency and excellent current handling 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 0.484 ++ max 12,3 L1 V V C OUT D IN SW Dot indicates pin1 123 0.484 Dash number max Typical Buck Converter with auxiliary output 12,3 X Internal code D ++ L1 C1 V V C Q L2 C OUT 0.236 0.008* IN 6,0 0,2 Recommended LandPattern Typical SEPIC schematic 0.197 0.217 5,0 5,5 0.157 0.138 4,0 ++ 3,5 2 1 3 4 L2 C1 0.197 0.177 Q 5,0 4,5 V D 3 4 V CCL1 OUT 2 1 IN 0.059 0.079 Typical Zeta schematic 1,5 2,0 For optional tin-lead and tin-silver-copper * terminations, dimensions are for the mounted part.Dimensions before mounting can be 1 2 an additional 0.012 inch (0,3 mm). L1 L2 inches Dimensions are in mm 3 4 Document 528-1 Revised 02/08/21 US +1-847-639-6400 sales coilcraft.com UK +44-1236-730595 sales coilcraft-europe.com Coilcraft Inc. 2021 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 528-2 Shielded Coupled Inductors MSD1260 Series Irms (A) Coupling Leakage 2 3 4 5 6 Inductance DCR max SRF typ coefficient Inductance Isat both one 1 7 8 Part number (H) (Ohms) (MHz) typ typ (H) (A) windings winding MSD1260-472ML 4.7 20% 0.036 32.0 0.98 0.20 10.3 3.16 4.47 MSD1260-562ML 5.6 20% 0.040 31.0 0.98 0.20 9.66 3.00 4.24 MSD1260-682ML 6.8 20% 0.048 28.0 0.98 0.24 9.21 2.75 3.88 AEC + Q200 85C MSD1260-822ML 8.2 20% 0.052 25.0 0.98 0.25 8.55 2.63 3.72 MSD1260-103ML 10 20% 0.060 22.0 0.99 0.26 7.40 2.45 3.46 MSD1260-123ML 12 20% 0.074 21.0 0.99 0.28 6.86 2.21 3.12 MSD1260-153ML 15 20% 0.085 17.6 0.99 0.32 6.09 2.06 2.92 MSD1260-183ML 18 20% 0.097 17.0 0.99 0.40 5.30 1.93 2.73 MSD1260-223ML 22 20% 0.116 15.0 0.98 0.68 5.01 1.76 2.49 MSD1260-273ML 27 20% 0.124 13.6 0.99 0.50 4.66 1.70 2.41 MSD1260-333ML 33 20% 0.134 12.7 0.99 0.65 4.22 1.64 2.32 MSD1260-393ML 39 20% 0.142 11.7 0.99 1.09 3.80 1.59 2.25 MSD1260-473ML 47 20% 0.174 8.7 0.99 0.80 3.25 1.44 2.03 MSD1260-563ML 56 20% 0.198 7.6 0.99 0.75 3.07 1.35 1.91 MSD1260-683ML 68 20% 0.216 6.1 >0.99 0.57 2.83 1.29 1.83 MSD1260-823ML 82 20% 0.274 5.3 0.99 1.52 2.55 1.15 1.62 MSD1260-104ML 100 20% 0.322 5.0 0.99 1.41 2.20 1.06 1.50 MSD1260-124KL 120 10% 0.418 4.4 0.99 1.34 2.05 0.93 1.31 MSD1260-154KL 150 10% 0.476 4.0 0.99 1.52 1.82 0.87 1.23 MSD1260-184KL 180 10% 0.536 3.6 0.99 1.80 1.60 0.82 1.16 MSD1260-224KL 220 10% 0.691 3.2 >0.99 1.60 1.51 0.72 1.02 MSD1260-274KL 270 10% 0.806 2.8 >0.99 2.23 1.41 0.67 0.95 MSD1260-334KL 330 10% 1.09 2.5 >0.99 2.39 1.28 0.57 0.81 MSD1260-394KL 390 10% 1.20 2.3 >0.99 3.72 1.16 0.55 0.77 MSD1260-474KL 470 10% 1.59 2.1 >0.99 2.89 1.00 0.48 0.67 MSD1260-564KL 560 10% 1.81 2.0 >0.99 2.55 0.95 0.45 0.63 MSD1260-684KL 680 10% 2.06 1.8 >0.99 5.76 0.88 0.42 0.59 MSD1260-824KL 820 10% 2.65 1.5 >0.99 2.86 0.79 0.37 0.52 MSD1260-105KL 1000 10% 3.06 1.2 >0.99 4.32 0.69 0.34 0.49 6. DC current, at which the inductance drops 30% (typ) from its value 1. When ordering, please specify termination and packaging codes: without current. It is the sum of the current flowing in both windings. 7. Equal current when applied to each winding simultaneously that causes MSD1260-105KLD a 40C temperature rise from 25C ambient. This information is for refer- Termination: L = RoHS compliant matte tin over nickel over phos bronze. ence only and does not represent absolute maximum ratings. To predict Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or temperature rise go to online calculator. S = non-RoHS tin-lead (63/37). 8. 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 (500 parts per full reel). Quantities less than full only and does not represent absolute maximum ratings. To predict reel available: in tape (not machine ready) or with temperature rise go to online calculator. leader and trailer ( 25 charge). 9. Electrical specifications at 25C. B = Less than full reel. In an effort to simplify our part Refer to Doc 639 Selecting Coupled Inductors for SEPIC Applications. numbering system, Coilcraft is eliminating the need Refer to Doc 362 Soldering Surface Mount Components before soldering. for multiple packaging codes. When ordering, simply change the last letter of your part number from B to D. 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 Coupled Inductor Core and Winding Loss Calculator 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 This web-based utility allows you to enter frequency, peak-to-peak are connected in parallel, SRF is the same value. (ripple) current, and Irms current to predict temperature rise and overall 5. Leakage Inductance is for L1 and is measured with L2 shorted. losses, including core loss. Go to online calculator. Document 528-2 Revised 02/08/21 US +1-847-639-6400 sales coilcraft.com UK +44-1236-730595 sales coilcraft-europe.com Coilcraft Inc. 2021 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.