Document 1308-1 Coupled Inductors MSD1514 • Excellent coupling coefficient (k ≥ 0.97) • Ideal for use in a variety of circuits including flyback, multioutput buck, SEPIC, Zeta, and Ćuk. • 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 L1 C L2 VOUT C VIN – SW – 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 bronze. Other terminations available at additional cost. Weight: 9.0 – 11.8 g Ambient temperature –40°C to +85°C with (40°C rise) Irms current. Maximum part temperature +125°C (ambient + temp rise). Storage temperature Component: –40°C to +125°C. Tape and reel packaging: –40°C to +80°C Winding to winding isolation (hipot) 500 Vrms 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 175/13″ reel; Plastic tape: 32 mm wide, 0.5 mm thick, 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. Typical Flyback Converter D L2 + VOUT C AUX – + + VIN L1 D SW VOUT C – – Typical Buck Converter with auxiliary output D + L1 VIN C L2 Q – + C1 C – Typical SEPIC schematic + + – L2 C1 Q VIN VOUT L1 C D Typical Zeta schematic US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 1308-1 C VOUT – Revised 05/06/16 © Coilcraft Inc. 2016 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Document 1308-2 MSD1514 Coupled Inductors SRF Coupling Leakage Isat (A)5 Inductance2 DCR (Ohms)3 typ4 coefficient inductance 10% 20% Part number1 (µH) typ max (MHz) typ typ (µH) drop drop MSD1514-252ME_ 2.5 ±20% 0.010 0.012 34.0 0.97 0.20 25.0 28.0 MSD1514-472ME_ 4.7 ±20% 0.012 0.014 25.0 0.98 0.20 19.5 21.8 MSD1514-103ME_ 10 ±20% 0.015 0.018 16.5 0.99 0.40 13.4 15.0 MSD1514-123ME_ 12 ±20% 0.018 0.022 14.5 0.99 0.40 12.2 13.7 MSD1514-153ME_ 15 ±20% 0.024 0.028 11.0 >0.99 0.42 10.9 12.2 MSD1514-223ME_ 22 ±20% 0.031 0.036 10.0 >0.99 0.45 9.00 10.1 MSD1514-273ME_ 27 ±20% 0.034 0.039 8.50 >0.99 0.45 8.14 9.13 MSD1514-333ME_ 33 ±20% 0.045 0.052 7.20 >0.99 0.45 7.40 8.20 MSD1514-473ME_ 47 ±20% 0.065 0.075 5.60 >0.99 0.55 6.20 6.90 MSD1514-683ME_ 68 ±20% 0.078 0.090 5.20 >0.99 0.55 5.10 5.70 MSD1514-104KE_ 100 ±10% 0.115 0.126 3.80 >0.99 0.55 4.20 4.75 MSD1514-224KE_ 220 ±10% 0.261 0.287 2.30 >0.99 0.70 2.85 3.20 MSD1514-334KE_ 330 ±10% 0.334 0.367 2.10 >0.99 0.80 2.33 2.61 MSD1514-474KE_ 470 ±10% 0.500 0.550 1.65 >0.99 1.2 1.95 2.20 MSD1514-105KE_ 1000 ±10% 1.12 1.25 1.10 >0.99 2.0 1.34 1.50 Irms (A) 30% both one drop windings6 winding7 30.5 5.1 7.8 23.7 4.5 7.6 16.2 4.0 6.8 14.8 3.7 6.6 13.3 3.4 5.8 11.0 3.0 5.1 9.90 2.95 4.7 9.00 2.55 3.9 7.50 2.20 3.45 6.20 2.00 3.20 5.15 1.65 2.50 3.50 1.10 1.70 2.83 0.98 1.55 2.40 0.77 1.30 1.63 0.55 0.77 1. When ordering, please specify termination and packaging codes: Coupled Inductor Core and Winding Loss Calculator MSD1514-105KED Termination: E = RoHS compliant matte tin over nickel over phos bronze. 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 40°C temperature rise from 25°C ambient. Click for temperature derating information. 7. Maximum current when applied to one winding that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Click for temperature derating information. 8. Electrical specifications at 25°C. Refer to Doc 639 “Selecting Coupled Inductors for SEPIC Applications.” Refer to Doc 362 “Soldering Surface Mount Components” before soldering. This web-based utility allows you to enter frequency, peak-to-peak (ripple) current, and Irms current to predict temperature rise and overall losses, including core loss. Go to online calculator. US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 1308-2 Revised 05/06/16 © Coilcraft Inc. 2016 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Document 1308-3 MSD1514 Coupled Inductors Typical L vs Current Typical L vs Frequency 10,000 10,000 1000 µH 470 µH 470 µH 220 µH 100 220 µH 1000 1000 µH Inductance (µH) Inductance (µH) 1000 100 µH 47 µH 22 µH 10 100 µH 47 µH 22 µH 100 10 µH 4.7 µH 10 10 µH 4.7 µH 1 0.1 10 1 100 1 0.1 10 1 Current (A) 100 Frequency (MHz) 0.590 ±0.197 15,0 ±0,50 123 X 0.590 ±0.197 15,0 ±0,50 Dash number 1 Dot indicates pin1 L1 2 L2 4 3 Internal code 1:1 0.559 max* 14,20 0.130 3,3 0.012 min 0,30 0.220 5,6 4 1 3 2 0.165 4,2 0.074 1,9 0.331 8,2 0.091 2,3 3 2 4 1 0.236 6,0 0.311 7,9 Recommended Land Pattern * For optional tin-lead and tin-silver-copper terminations, dimensions are for the mounted part. Dimensions before mounting can be an additional 0.012 inch (0,3 mm). Dimensions are in US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] inches mm Document 1308-3 Revised 05/06/16 © Coilcraft Inc. 2016 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.