T1/E1 Interface Transformer EPA3358G ELECTRONICS INC. • SMD Package • • 1500 Vrms Isolation • • Transmit and Receive Transformers in one package • Electrical Parameters @ 25° C Primary Inductance (mH Min.) Leakage Inductance (µH Max.) Wdg Capacitance (pF Max.) Turns Ratio (± 5%) DCR (Ω Max.) Pins 12-10 Pins 4-6 A B A B A B Primary Secondary 1.2 1.2 .50 .50 35 35 1:2 CT 1:1.36 .88 1.80 Schematic 12 10 1 2 3 9 7 4 6 Package Dimensions A J N PCA EPA3358G D.C. White dot pin#1 B Dim. Suggested Solder Pad Layout Q A B C D E F G H I J K L M N P Q P M D E I K C H F L Min. .590 .380 .260 .500 .005 .100 .490 .016 .010 .050 0° .025 (Inches) Max. Nom. .610 .400 .280 Typ. .015 Typ. .510 .022 Typ. Typ. 8° .045 (Milimeters) Min. Max. Nom. 14.99 9.65 6.60 12.70 .127 2.54 12.45 .406 .254 1.27 0° .635 .030 .100 .092 .540 15.49 10.16 7.11 Typ. .381 Typ. 12.95 .559 Typ. Typ. 8° 1.14 .762 2.54 2.34 13.72 G PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 CSA3358G Rev. - 2/6/97 Product performance is limited to specified parameters. Data is subject to change without prior notice. TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com