ISDN “S” Interface Isolation Transformers ELECTRONICS INC. EPA1155-X • UL1459 Approved, File #132261 • Meets CCITT 1.430 Four Wire “S” Interface • Single Low Profile Packages • Hipot : 2000 Vrms Electrical Parameters @ 25° C PCA Part Number I.C. Manufacturer Part Number Function OCL (mH Min.) EPA1155-1 Motorola MC145174 Motorola MC145175 National TP3420 SGS 5420 Intel 29C53 Mitel MT8930 National TP3420 Siemens PEB2080 SGS 5420 Intel 29C53 ----- Xmit & Rvc Xmit & Rvc Rvc Rvc Xmit & Rvc Xmit & Rvc Xmit Xmit & Rvc Rvc Rcv ----- EPA1155-2 EPA1155-3 EPA1155-4 EPA1155-5 EPA1155-12 22 Interwinding Capacitance (pF Max.) 100 Leakage Inductance (µH Max.) 5 Turns Ratio (± 5%) 1:1 DCR (Ω Max.) 2.50 2.50 A 22 22 100 100 5 8 1:1.8 1:2 2.50 2.50 4.50 5.00 B A 22 22 22 100 100 100 12 30 11 1:2.5 1:2 1:2 2.50 2.50 2.50 6.00 5.00 5.00 B A A Package & Schematic • Longitudinal Balance : -60 dB Min. @ 10 KHz - 300 KHz • Schematic A 1 Schematic B 6 7 1 2 5 6 2 4 3 5 3 Package A 1 Marking : PCA 2 EPA1155-X 3 D.C. Package B 6 5 1 Marking : PCA 2 EPA1155-X 3 D.C. .550 (14.22) 4 .550 (14.22) .025/.035 (.635/.889) .017/.022 (.432/584) .200 (5.08) 7 6 .550 5 (14.22) 4 .550 (14.22) .025/.035 (.635/.889) .390 (9.91) .400 (10.16) 4 .115/.125 (2.92/3.18) .017/.022 (.432/584) .400 (10.16) .390 (9.91) .400 (10.16) .200 (5.08) Bottom View .115/.125 (2.92/3.18) .100 (2.54) .200 (5.08) Bottom View .100 (2.54) 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-XS Rev. 2 7/21/03 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com