T3/DS3/E3/STS-1 Interface Transformers ELECTRONICS INC. EPR1351 • Optimizied for Leading Transceiver I.C.’s • • Meets or exceeds UL1950 , EN60950 & G703 Standards • • 3000 Vrms Isolation • • See Selection Guide for I.C. Cross Reference • Electrical Parameters @ 25° C Turns Ratio OCL (µH Min.) Cw/w (pF Max.) LI (µH Max.) Pri. DCR (Ω Max.) Sec. DCR (Ω Max.) 1 : 2CT 19 10 .06 0.150 .300 Schematic 2 1 4 5 6 Package 5 3 6 PCA EPR1351 D.C. 1 Dimensions B 4 2 A C E I G H F Dim. Min. A B C D E F G H I .480 .340 .230 --.075 --.395 .017 .120 (Inches) Max. Nom. .500 .360 .250 --.085 --.405 .023 .140 .490 .350 .240 .200 .080 .100 .400 .020 .130 Min. (millimeters) Max. Nom. 12.19 12.70 12.45 8.64 9.14 8.89 5.84 6.35 6.10 ----5.08 1.90 2.16 2.03 ----2.54 10.03 10.29 10.16 .432 .584 .508 3.05 3.56 3.30 D PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 CSR1351 Rev.1 7/24/00 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