EPR1202

ISDN-S Interface Transformers ELECTRONICS INC. • Optimizied for Leading Transceiver I.C.’s • • Meets CCITT 1.430 Four Wire “S” Interface • • Meets or exceeds UL1459 & UL1950 Standards • • 2000 Vrms Isolation • • See Selection Guide for I.C. Cross Reference • Electrical Parameters @ 25° C Part Number EPR1201 EPR1202 EPR1203 EPR1204 Turns Ratio 1CT:1CT 1CT:2CT 1CT:1.8CT 1CT:2.5CT OCL (mH Min.) 22 22 22 22 Cw/w (pF Max.) 110 100 100 100 LI (µH Max.) 5.0 8.0 8.0 12 Pri. DCR (Ω Max.) 2.5 2.5 2.5 2.5 Sec. DCR (Ω Max.) 2.5 5.0 4.5 6.0 Package & Schematic A A B B Schematic A 1 2 3 6 1 5 2 4 3 5 4 6 B 7 Package A A 1 6 5 4 Package B A 1 PCA EPR12XX D.C. 2 3 B PCA EPR12XX D.C. 2 3 7 6 5 4 B Dimensions C K G H J D F J E C K G H F J D E Dim. Min. (Inches) Max. Nom. Min. (millimeters) Max. Nom. A B C D E F G H J K .540 .540 .380 --.025 --.395 .017 --.115 .560 .560 .400 --.035 --.405 .023 --.125 .550 .550 .390 .400 .030 .100 .400 .020 .200 .120 13.72 13.72 9.65 --.635 --10.03 .432 --2.92 14.22 14.22 10.16 --.889 --10.29 .584 --3.18 13.97 13.97 9.91 10.16 .762 2.54 10.16 .508 5.08 3.05 PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 CSR1201 - CSR1204 Rev. - 3/12/99 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