T1/E1 Quad Port Transformer ELECTRONICS, INC. EPR1537S • Robust construction allows toughest reflow process • • 1500 Vrms Isolation • Electrical Parameters @ 25°C Turns Ratio (±3%) OCL (mH Min.) Leakage Inductance (µH Max.) Interwinding Capacitance (pF Max.) DCR Max.) @100 KHz, 0.1 Vrms @100 KHz, 0.1 Vrms @100 KHz, 0.1 Vrms TX RX 1.2 0.7 35 1 1 Pri. Measure Pri. Short Sec. Pri. to Sec. Pri. Pri. (Ω TX RX 1CT:1 1:1CT Schematic 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 Sec. Pri. 1 2 3 TX1 4 5 RX1 6 7 8 TX2 9 10 RX2 11 12 13 TX3 14 15 RX3 16 17 18 TX4 19 20 RX4 Package A Pin 1 I.D. Dimensions N J 40 PCA EPR1537S Date Code B Q P Solder Pad Layout 1 20 M D E C H 21 F I K L Dim. A B C D E F G H I J K L M N P Q Min. 1.110 .470 .250 --.010 --.590 .016 .008 --0° .025 --------- (Inches) Max. 1.130 .490 .270 --.015 --.610 .022 .012 --8° .045 --------- (Millimeters) Nom. Min. Max. Nom. 1.120 28.19 28.70 28.45 .480 11.94 12.45 12.19 .260 6.35 6.86 6.60 .950 ----24.13 .012 .254 .381 .305 .050 ----1.27 .600 14.99 15.49 15.24 .019 .406 .559 .483 .010 .203 .305 .254 .085 ----2.16 4° 0° 8° 4° .035 .635 1.14 .889 .030 ----.762 .050 ----1.27 .090 ----2.29 .670 ----17.02 G PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 CSR1537S Rev. - 5/31/01 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