EPR1270G

ISDN-S Interface Dual Transformers ELECTRONICS INC. EPR1270G • Optimizied for Leading Transceiver I.C.’s • • Meets or exceeds UL1459, UL1950 & EN60950 Standards • • 1500 Vrms Isolation (for 1 minute) • Electrical Parameters @ 25° C Turns Ratio 1:2CT / 1:2CT OCL (mH Min.) 20 / 20 Cw/w (pF Max.) 130 / 130 LI (µH Max.) 5/5 Pri. DCR (Ω Max.) 2.8 / 2.8 Sec. DCR (Ω Max.) 5.6 / 5.6 Primary Pins 1,3 / 4,6 Crosstalk (dB Typ.) -60 @ 0.1 MHz - 5 MHz Schematic 12 Secondary (Chip Side) A 11 B 10 9 8 7 Primary (Line Side) 1 3 4 6 Package A J Pin 1 I.D. PCA EPR1270G D.C. Dimensions N Dim. Pad Layout Min. (Inches) Max. Nom. Min. (millimeters) Max. Nom. B Q P D M C H F E K L G I A B C D E F G H I J K L M N P Q CSR1270G Rev. 7/9/01 .660 .430 .320 --.010 --.540 .018 .008 --0° .025 --------- .680 .450 .340 --.015 --.560 .022 .012 --8° .045 --------- .670 .440 .330 .500 .012 .100 .550 .020 .010 .085 --.035 .030 .100 .085 .610 16.76 17.27 17.02 10.92 11.43 11.18 8.13 8.64 8.39 ----- 12.70 .254 .381 .305 ----2.54 13.72 14.22 13.97 .457 .559 .508 .203 .305 .254 ----2.16 0° 8° --.635 1.14 .889 ----.762 ----2.54 ----2.16 ----- 15.50 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 Product performance is limited to specified parameters. Data is subject to change without prior notice.