Twisted Pair Coupling Transformers For 10Base-T Features Available in single and dual low profile packages. Low leakage inductance (LE) and interwinding capacitance (CW) Hipot - 2000 Vrms Meets IEEE 802.3 10Base-T ELECTRICAL SPECIFICATIONS PCA Part No. Single Dual EPA1458-1 EPA1458-2 OCL µH Min. Turns Ratio (±2%) ET V-µS Ref. 200 1CT:1CT 3.5 Schematic : Single Rise Time nS Max. DCR Ω Max. 20.0 0.17 0.9 4.2 6 5 4 16 15 14 11 1 2 3 1 3 2 PCA EPA1458-2 Date Code .320 Max. 9 7 8 .280 Max. .800 Max. .020 Min. .008 .012 .02 .125 Min. .365 Max. .020 Min. .175 Max. .008 .012 .02 .100 Typ. .300 DSA1458 6 10 Dual Package PCA .280 EPA1458-1 Max. Date Code .100 Typ. LE µH Max. Schematic : Dual Single Package .175 Max. CW pF Max. 9/9/94 Unless Otherwise Noted Dimensions in Inches Tolerances: Fractional = ± 1/32 .XX = ± .030 .XXX = ± .010 .125 Min. .365 Max. QAF-CSO5a ELECTRONICS INC. 9/9/94 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 TEL: (818) 892-0761 FAX: (818) 894-5791