T3/DS3/E3/STS-1 Interface Transformers ELECTRONICS INC. • Optimizied for leading Transceiver I.C.’s • • Meets or exceeds UL1950, EN60950 & G703 Standards • • 2000 Vrms Isolation • • See Selection Guide for I.C. Cross Reference • Electrical Parameters @ 25° C Part Number EPR1301G* EPR1302G EPR1303G EPR1304G EPR1326G* EPR1327G EPR1328G EPR1329G Turns Ratio OCL (µH Min.) Cw/w (pF Max.) LI (µH Max.) DCR (Ω Max.) Primary Pins 1:1 1:2CT 1:4CT 1:1.73CT 1:1 1:2CT 1:4CT 1:1.73CT 40 35 150 50 40 35 150 50 13 20 15 12 13 20 15 12 0.12 0.12 0.3 0.1 0.12 0.12 0.3 0.1 1.7 / 1.7 1.0 / 1.0 1.4 / 1.4 1.0 / 1.8 1.4 / 1.2 1.4 / 1.4 1.4 / 1.4 1.2 / 1.2 1, 5 * 1, 5 1, 5 1, 5 1, 5 * 1, 5 1, 5 1, 5 • * Pin 4 not connected • Schematic 1 2 4 5 6 Package Dimensions A J N Pin 1 I.D. PCA EPRXXXXG D.C. B Q Pad Layout P M D E C F H PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 K L I G CSR1301G - CSR1329G Rev. - Dim. Min. A B C D E F G H I J K L M N P Q .280 .280 .230 --.010 --.380 .018 .008 --0° .035 --------- (Inches) Max. Nom. .300 .300 .250 --.015 --.400 .022 .012 --8° .055 --------- Min. (millimeters) Max. Nom. .290 7.11 7.62 7.37 .290 7.11 7.62 7.37 .240 5.84 6.35 6.10 .500 ----- 12.70 .0125 .254 .381 .318 .100 ----2.54 .390 13.72 12.22 13.97 .020 .457 .559 .508 .010 .203 .305 .254 .085 ----2.16 --0° 8° --.045 .635 1.14 .889 .030 ----.762 .100 ----2.54 .085 ----2.16 .610 ----- 15.50 3/12/99 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