T3/DS3/E3/STS-1 Quad Port Interface Transformers ELECTRONICS INC. EPR1601SE • Optimized for Leading Transceiver I.C.’s • • Eight Transformers Support Four T3/E3 Ports • • Robust construction allows IR/VP reflow process • • Meet Return Loss Requirements of G.703 • • 1500 Vrms Isolation • • Operating Temperature : -40°C to +85°C • Electrical Parameters @ 25° C OCL (µH Min.) † Xmit 100 Turns Ratio (Pri : Sec ± 2%) Rcv 100 Xmit 1:1 LL (uH Max.) Cw/w (pF Max.) Xmit 0.11 Rcv 1:1 Xmit 10 Rcv 0.11 DCR Pri. (Ω Max.) Rcv 10 Xmit 1.4 Rcv 1.4 • † Note : 55 µH Min. @ -40°C • Schematic 32 31 1 2 30 29 3 4 28 27 5 6 26 25 7 8 24 23 22 21 20 19 18 17 9 10 11 12 13 14 15 16 Package .990 (25.15) .125 (3.18) Pin 1 I.D. .050 Typ. (1.27) PCA EPR1601SE Date Code .310 (7.87) .480 (12.19) .750 (19.05) .020 Typ. (.508) .085 Typ. (2.16) .030 Typ. (.762) .012 Typ. (.305) .290 (7.37) Land Pattern .010 (.254) 0°-8° .035 (.889) .420 (10.67) .050 Typ. (1.27) Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25 PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 CSR1601SE Rev. 1 2/12/02 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