Surface Mount Power Transformer EPC3030G-EPC3107G ELECTRONICS INC. Features of the EFD20-6 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 EPC3030G EPC3031G EPC3032G EPC3033G EPC3034G EPC3035G EPC3036G EPC3037G EPC3055G EPC3067G EPC3107G Inductance (µH ± 20%) @ 0 Adc Inductance Change @ Idc (Typ.) Connection DCR (Ω Max.) 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 Series Parallel Single Wdg Series Parallel Single Wdg Series Parallel Single Wdg 22.3 x(Ns) 2 27% .071 xNs 6.1 /Ks 22.3 27% .071 /Np 6.1 /Kp 22.3 7.5% .071 2.5 9.9 x(Ns) 2 21% .047xNs 7.5 /Ks 9.9 21% .047 /Np 7.5 /Kp 9.9 9% .047 3.06 12.0 x(Ns) 2 1% .071 xNs 6.1 /Ks 12.0 1% .071 /Np 6.1 /Kp 12.0 0% .071 2.5 5.3 x(Ns) 2 0.4% .047 xNs 7.5 /Ks 5.3 0.4% .047 /Np 7.5 /Kp 5.3 0% .047 3.06 9.65 x(Ns) 2 0% .071 xNs 6.1 /Ks 9.65 0% .071 /Np 6.1 /Kp 9.65 0% .071 2.5 4.3 x(Ns) 2 0% .047 xNs 7.5 /Ks 4.3 0% .047 /Np 7.5 /Kp 4.3 0% .047 3.06 7.63 x(Ns) 2 0% .071 xNs 6.1 /Ks 7.63 0% .071 /Np 6.1 /Kp 7.63 0% .071 2.5 3.4 x(Ns) 2 0% .047xNs 7.5 /Ks 3.4 0% .047 /Np 7.5 /Kp 3.4 0% .047 3.06 27.4 x(Ns) 2 14% .081xNs 5.2 /Ks 27.4 14% .081 /Np 5.2 /Kp 27.4 2% .081 2.1 31.7 x(Ns) 2 23% .071 xNs 4.0 /Ks 31.7 23% .071 /Np 4.0 /Kp 31.7 2% .071 1.6 50.0 x(Ns) 30% .071 xNs 2.2 /Ks 50.0 30% .071 /Np 2.2 /Kp 50.0 2% .071 0.9 • Switching Frequency : Up to 1 MHz • Isolation : 500 Vrms • Idc (Amps) Vt 1 (V-µSec. Max.) Temp. Rise @ Idc (°C Typ.) 98 xNs 98 98 65.3 xNs 65.3 65.3 98 xNs 98 98 65.3 xNs 65.3 65.3 98 xNs 98 98 65.3 xNs 65.3 65.3 98 xNs 98 98 65.3 xNs 65.3 65.3 113 xNs 113 113 98 xNs 98 98 98 xNs 98 98 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 34 34 34 23 23 23 14.4 14.4 14.4 Package EFD20-6 Pin 1 I.D. .854 Max. (21.70) 1 .118 .591 (3.00) (15.00) Schematic .028 (.700) 12 PCA EPC30XXG D.C. .835 Max. (21.20) Notes : 1. Ns = Number of series connections 2. Np = Number of parallel connections 3. Ks = Ns x 6/Ns 4. Kp = 6/Np 7 6 .016 (.400) 0°-8° .080 (2.03) 1.128 (28.65) 1 4 12 9 2 5 11 8 3 6 10 .425 Max. (10.80) 7 1:1:1:1:1:1 .010 (.250) 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. CSC3030G-CSC3107G Rev. 4 12/18/02 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com