ISDN S-Interface Transformer ELECTRONICS INC. EPR1230G • SOIC Dual Transformer • • 1500 Vrms Isolation • Electrical Parameters @ 25° C Cww (pF Max.) OCL (mH Min.) LL (µH Max.) DCR (Ω Max.) Turns Ratio (± 5% each coil) 10 KHz, 0.1 Vrms 100 KHz, 0.1 Vrms 100 KHz, 0.1 Vrms Pri. Sec. Pri.:Sec. 22 5 80 1.25 3.10 1:2.5 Schematic 16 15 14 13 12 11 10 9 1 2 4 5 6 8 Sec. Pri. 3 7 Package .990 (25.15) .092 (2.34) .100 (2.54) .145 (3.68) PCA EPR1230G Date Code Pin 1 I.D. .440 (11.18) .620 (15.75) .030 (.762) .700 (17.78) .340 (8.64) .010 ± .005 (.254 - .127) .011 ± .002 (.279 ± .050) 0°-8° .035 (.889) .019 ± .002 (.483 ±.051) Pad Layout .100 ± .002 (2.54 ± .050) .570 (14.48) Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25 PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 CSR1230G Rev. - 5/15/02 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