Dual T3/DS3/E3/STS-1 Interface Transformer ELECTRONICS INC. EPR1311SE • Optimized for leading transceiver I.C.’s • • 1500 Vrms Isolation (for 1 minute, 500 µA Max. Leakage Current) • • Operating Temperature : -40°C to +85°C • • Meets or exceeds UL1459 & UL1450 Requirements • • Transmit and Receive Transformers in one SMD Package • • Return Loss meets requirements of G.703 • Electrical Parameters @ 25° C Primary Inductance (µH Min.) Interwinding Capacitance (pF Max.) Leakage Inductance (nH Max.) @ 100 KHz, 0.1 Vrms @ 100 KHz, 1 Vrms @ 1 MHz, 0.1 Vrms DCR (Ω Max.) 40* 100** 10 100 110 0.40 0.40 Pins 16-14 Pins 11-9 Pri. to each Sec. shorted Pins 16-14 w/ 1-2-3 shorted Pins 11-9 w/ 6-8 shorted Pins 16-14 or 11-9 Pins 1-2 or 2-3 or 6-8 • Characteristic Impedance : 75 Ω • * 19 µH Min. @ -40·C • **40 µH Min. @ -40°C • Schematic 1 16 6 14 8 2 11 9 1:1 3 2CT:1 Package Dimensions A Marking : N J PCA EPR1311SE Date Code B Pin 1 I.D. Pad Layout Q D M E C K L H PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 P F I G CSR1311SE Dim. Min. A B C D E F G H I J K L M N P Q .480 .260 .180 .345 .010 --.355 .017 .008 .065 0° .025 --------- (Inches) Max. Nom. .500 .280 .200 .355 .015 --.375 .022 .013 .075 8° .045 --------- .490 .270 .190 .350 .013 .050 .365 .020 .011 .070 4° .035 .030 .050 .092 .460 Rev. - 7/2/01 Product performance is limited to specified parameters. Data is subject to change without prior notice. Min. (millimeters) Max. Nom. 12.19 12.70 12.45 6.60 7.11 6.86 4.57 5.08 4.83 8.76 9.02 8.89 .254 .381 .330 ----1.27 9.02 9.53 9.27 .432 .559 .508 .203 .330 .279 1.65 1.91 1.78 0° 8° 4° .635 1.14 .889 ----.762 ----1.27 ----2.34 ----- 11.68 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com