ISDN S-Interface Transformer ELECTRONICS INC. EPA3317 • 2000 Vrms Minimum Isolation • • Through Hole Package • Electrical Parameters @ 25° C OCL (Primary) (mH Min.) Interwinding Capacitance (pF Max.) Leakage Inductance (µH Max.) DCR (Ω ± 25%) 22 Pins 1-4 with Pins 2-3 Shorted 100 Pri. Wdgs to Sec. Wdgs 8-40 Pins 1-4 with Pins 5,6,7,8 Shorted Pri. 2.5 Pins 1-4 with Pins 2-3 Shorted Sec. 5.8 Pins 8-5 with Pins 7-6 Shorted • Primary Distributed Capacitance : 110 pF Max. • Schematic Pri. Sec. 1:2.5 1 8 2 7 3 6 4 5 Dimensions Package A 8 7 1 2 PCA EPA3317 6 3 D.C. 5 4 F B G Dim. Min. A B C D E F G H .540 .540 .380 --.100 ----.023 (Inches) Max. Nom. .560 .560 .400 --.140 ----.027 .550 .550 .390 .400 .120 .100 .200 .025 (millimeters) Min. Max. Nom. 13.71 13.71 9.65 --2.54 ----.584 14.22 14.22 10.16 --3.57 ----.686 13.97 13.97 9.91 10.16 3.05 2.54 5.08 .635 D C E H PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 CSA3317 Rev. - 5/27/98 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