Surface Mount Power Transformer EPC3020G-EPC3027G ELECTRONICS INC. Features of the EFD15-6 Series • Low Loss Material ensures operation in High Frequency Switching Converters such as Flyback, Buck, Boost Topology or as Coupled Inductors • UL1446 Class B Insulating System • UL 94V-0 Recognized Material • Very Low Leakage Inductance Primary Specification Part Number EPC3020G EPC3021G EPC3022G EPC3023G EPC3024G EPC3025G EPC3026G EPC3027G Connection DCR (Ω Max.) Idc (Amps) Series Parallel Single Wdg Series Parallel Single Wdg Series Parallel Single Wdg Series Parallel Single Wdg Series Parallel Single Wdg Series Parallel Single Wdg Series Parallel Single Wdg Series Parallel Single Wdg .083 xNs .083 /Np .083 .057xNs .057 /Np .057 .083 xNs .083 /Np .083 .057xNs .057 /Np .057 .083 xNs .083 /Np .083 .057xNs .057 /Np .057 .083 xNs .083 /Np .083 .057xNs .057 /Np .057 2.6 /Ks 2.6 /Kp 1.8 3.6 /Ks 3.6 /Kp 2.17 4.4 /Ks 4.4 /Kp 1.8 5.3 /Ks 5.3 /Kp 2.17 4.4 /Ks 4.4 /Kp 1.8 5.3 /Ks 5.3 /Kp 2.17 4.4 /Ks 4.4 /Kp 1.8 5.3 /Ks 5.3 /Kp 2.17 Inductance (µH ± 20%) @ 0 Adc 23.7 x(Ns) 2 23.7 23.7 11.3 x(Ns) 2 11.3 11.3 12.7 x(Ns) 2 12.7 12.7 6.1 x(Ns) 2 6.1 6.1 10.1 x(Ns) 2 10.1 10.1 4.9 x(Ns) 2 4.9 4.9 7.94 x(Ns) 2 7.94 7.94 3.8 x(Ns) 2 3.8 3.8 Inductance Change @ Idc (Typ.) Vt 1 (V-µSec. Max.) Temp. Rise @ Idc (°C Typ.) 28% 28% 6% 26% 26% 4% 6.5% 6.5% 0% 3% 3% 0% 2% 2% 0% 0.5% 0.5% 0% 0% 0% 0% 0% 0% 0% 62.5 xNs 62.5 62.5 43 xNs 43 43 62.5 xNs 62.5 62.5 43 xNs 43 43 62.5 xNs 62.5 62.5 43 xNs 43 43 62.5 xNs 62.5 62.5 43 xNs 43 43 20 20 39 24 24 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 • Switching Frequency : Up to 1 MHz • Isolation : 500 Vrms • Package EFD15-6 Pin 1 I.D. .646 Max. (16.40) 1 .098 .492 (2.50) (12.50) Schematic .028 (.700) Notes : 1. Ns = Number of series connections 2. Np = Number of parallel connections 3. Ks = Ns x 6/Ns 4. Kp = 6/Np 12 .709 Max. (18.00) PCA EPC30XXG D.C. 7 6 1 4 12 9 2 5 11 8 3 6 10 .016 (.400) 0°-8° .072 (1.82) .837 (21.25) 7 1:1:1:1:1:1 .315 Max. (8.00) .012 (.300) Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25 PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 Product performance is limited to specified parameters. Data is subject to change without prior notice. CSC3020G-CSC3027G Rev. 2 12/18/02 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com