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| ISDN-S Interface Dual Transformers ELECTRONICS INC. EPR1251G-EPR1254G * Opitmized for Leading Transceiver I.C.'s * Meets or exceeds UL1459, UL1950 & EN60950 Standards * Meets CCITT 1.430 Four Wire "S" Interface * 2000 Vrms Isolation Electrical Parameters @ 25C Part Number EPR1251G EPR1252G EPR1253G EPR1254G Turns Ratio 1:1 / 1:1 1:1 / 1:2 1:2 / 1:2 1:2.5 / 1:2.5 OCL (mH Min.) 22 / 22 22 / 22 22 / 22 22 / 22 Cw/w (pF Max.) 100 / 100 100 / 100 100 / 100 100 / 100 LI (H Max.) 5/5 5 / 15 15 / 15 35 / 35 Pri. DCR ( Max.) 2.4 / 2.4 2.4 / 2.4 2.5 / 2.5 2.5 / 2.5 Sec. DCR ( Max.) 2.4 / 2.4 2.4 / 4.0 4.0 / 4.0 6.0 / 6.0 Primary Pins 1,4 / 5,8 1,4 / 5,8 1,4 / 5,8 1,4 / 5,8 Schematics 16 15 14 13 12 11 10 9 Secondary (Chip Side) Primary (Line Side) 1 2 3 4 5 6 7 8 Package .940 (23.88) .120 (3.05) PCA EPR125XG D.C. .100 (2.54) .085 (2.16) .580 (14.73) .750 (19.05) Solder Pad Layout Pin 1 I.D. .700 (17.78) .030 (.762) .005/.015 (.127/.381) .290 (7.37) 0-8 .008/.012 (.203/.305) .018/.022 (.457/.559) .100 (2.54) .035 (.889) .690 (17.52) Unless Otherwise Specified Dimensions are in Inches /mm .010 /.25 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. CSR1251G-R1254G Rev. 1 6/16/03 JDG TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com |
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