T1/E1/CEPT/ISDN-PRI Quad-Port Transformer ELECTRONICS INC. EPR1591SE-X • Small Surface Mount Package • Crosstalk : -65 dB or better typically • Operating Temperature : -40°C to +85°C • 1500 Vrms Isolation Minimum Electrical Parameters @ 25° C Part Number Turns Ratio (± 2%) Secondary Inductance (mH Min.) Cww (pF Max..) Wdg to Wdg LL (µH Max..) EPR1591SE-1 1:2 1.2 30 0.60 1:1 1.2 30 0.60 EPR1591SE-2 Schematic 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 1 2 3 4 5 6 7 9 10 11 12 13 14 15 Secondary Primary 8 16 Package 1.00 (25.40) Pin 1 I.D. PCA EPR1591SE-X Date Code .310 (7.87) .465 (11.81) Solder Pad Layout .750 (19.05) .285 (7.24) .018 ± .002 (.457 ± .050) .100 (2.54) .050 (1.27) .125 (3.18) .030 (.762 ) .010/.015 (.254/.381) .010 (.254) 0°-8° .035 (.889) .050 (1.27) .425 (10.80) Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25 PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 Product performance is limited to specified parameters. Data is subject to change without prior notice. CSR1591SE-X Rev. - 10/15/02 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com