ISDN “S” Interface Isolation Transformers ELECTRONICS INC. EPA1155-17 • EPA1155G-17 • Meets CCITT 1.430 Four Wire “S” Interface • Thru Hole and SMD Packages • Hipot : 2000 Vrms Electrical Parameters @ 25° C Primary Inductance (mH Min.) Leakage Inductance (µH Max.) Interwinding Capacitance (pF Max.) Pri. Dist. Capacitance (pF Max.) Turns Ratio (± 2%) 22 8 100 110 1:2.5 DCR (Ω Max.) 3 7 • Primary Inductance : 10 KHz, 1.0 Vrms • Longitudinal Balance : -60 dB Min. @ 10 KHz - 300 KHz • Schematic 1 16 5 12 2 15 6 11 3 14 7 10 4 13 8 9 DIL Package PCA EPA1155-17 D.C. SMD Package .550 (13.97) .880 (22.35) Pin 1 I.D. .910 (23.11) .092 (2.34) .100 (2.54) .090 (2.27) PCA EPA1155G-17 D.C. .580 (14.73) .750 (19.05) Solder Pad Layout .390 (9.90) .027/.027 (.610/.686) .700 (17.78) .700 (17.78) .110/.150 (2.79/3.81) .400 (10.16) .030 (.762) .010/.020 (.254/.508) .375 (9.53) .100 (2.54) .016/.022 (.406/.559) .008/.012 (.203/.305) 0°-8° .100 (2.54) .040 (1.02) .700 (17.78) 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. CSA1155-17 & G-17 Rev. 3 7/21/03 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com