T1/E1/ CEPT Quad Port Transformer EPR1539SE ELECTRONICS INC. • Optimized for Lead Transceiver I.C.’s • • Robust construction allows IR/VP reflow processes • • 1500 Vrms Isolation • • Operating Temperature -40°C to +85°C • Electrical Parameters @ 25° C Primary Inductance (mH Min.) † Leakage Inductance (µH Max.) Interwinding Capacitance (pF Max.) @ 100 KHz, 0.1 Vrms @ 100 KHz, 0.1 Vrms @ 100 KHz, 0.1 Vrms Measure Pri. short Sec. Pri. to Sec. Pri. Sec. Pri. 35 0.7 1.2 0.7 1.2 0.6 DCR (Ω Max.) Turns Ratio (± 2%) XMIT RCV XMIT RCV Sec. Pri:Sec Pri:Sec 1.2 1: 2 1: 2 • † Note : 1.5 mH Typ. @ 25°C, 0.6 mH Min. @ -40°C • Schematic Xmit 1 Rcv 1 Rcv 2 Xmit 2 Xmit 3 Rcv 3 Rcv 4 Xmit 4 Sec. 40 39 Pri. 38 37 Pri. 35 34 Sec. 33 32 Sec. 30 29 Pri. 28 27 Pri. 25 24 Sec. 23 22 1 3 4 Sec. 6 7 Sec. 8 9 Pri. 11 12 Pri. 13 14 Sec. 16 17 Sec. 18 19 Pri. 2 Pri. Package 1.120 (28.45) .085 (2.16) Pin 1 I.D. .260 (6.60) .050 Typ. (1.27) 40 PCA EPR1539SE Date Code .480 (12.19) .670 Solder Pad Layout (17.02) 1 .950 (24.13) .012 Typ. (.305) 21 .030 Typ. (.762) 0°-8° .090 Typ. (2.29) 20 .010 (.254) .035 (.889) .019 Typ. (.483) .050 Typ. (1.27) .600 (15.24) Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25 PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 CSR1539SE Rev. - 2/4/02 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