T1/E1 and ISDN-PRI Transformer ELECTRONICS INC. EPA4027S • UL94V-0 Recognized Materials • UL1446 Class B Insulating System • Operating Temperature : 0°C to +70°C • Surface Mount Package • 1500 Vrms Isolation Electrical Parameters @ 25°C Primary Inductance (mH Typ.) Leakage Inductance (µH Max.) DCR (Ω Max.) Interwinding Capacitance (pF Max.) Pri. Pri. Crosstalk (dB Typ.) Pri. 0.1-10 MHz -60 Pins 16-14 Pins 6-8 A B A B A B 1.2 1.2 0.4 0.4 30 30 0.7 0.7 Schematics A B Sec. 1 Pri. 2CT:1CT Pri. Sec. 1CT:1.36CT 16 6 11 2 15 7 10 3 14 8 9 Package .490 (12.45) .070 (1.78) Pin 1 I.D. .050 (1.27) PCA EPA4027S D.C. .270 (6.86) .405 (10.29) .350 (8.89) .190 (4.82) .018/.022 (.457/.559) .085 (2.16) Solder Pad Layout .030 (.762) .005/.010 (.127/.254) .008/.012 (.203/.305) 0°-8° .035 (.889) .365 (9.27) .050 (1.27) 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. CSA4027S Rev. - 1/26/05 FT TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com