Flyback Transformer ELECTRONICS INC. EPC3163G • Used in Flyback Topology Converter • Bobbin : UL94V-0 Recognized Materials • UL 1446 Class B Insulation System • Gapped Transformer • Duty Cycle : 85% Max. Electrical Parameters @ 25° C Inductance (µH ± 10%) Turns Ratio DCR (Ω Typ.) Leakage Inductance (µH Typ.) @ 10 KHz, 0.1 Vrms Dielectric Rating (Vac) @ 100 KHz, 0.1 Vrms 434 1.758 .257 .161 8:1 12:1 7.5 2000 Pins 1-2 Pins 1-2 Pins 4-5 Pins 7-8 Pins 1-2:4-5 Pins 1-2:8-7 Pins 1-2 All other wdg’s shorted Pri. to Sec. Wdg’s Package Schematic .854 Max. (12.70) Pin 1 I.D. 1 V in (28-191 Vdc) 2 .449 Max. (11.40) PCA EPC3163G D.C. Shield 13 V/.307 A 4 .012 (.300) .071 (1.80) .590 (15.00) 8 7 (20 V/ .03A) .827 (21.00) 5 .079 (2.00) 10 6 1.008 (25.60) Suggested Pad Layout 1 .148 (3.75) .110 (2.80) 5 .039 (1.00) .148 (3.75) .079 (2.00) 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. CSC3163G Rev. 2 10/8/03 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com