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T1/E1/ CEPT Quad Port Transformer ELECTRONICS INC. EPA3557S * 4 Transmit, 4 Receive Quad Port surface mount Transformer * 1500 Vrms Isolation * * Operating Temperature -0C to 70C * * Electrical Parameters @ 25 C Primary Inductance (mH Min.) @ 100 KHz, 0.1 Vrms Leakage Inductance (H Max.) @ 100 KHz, 0.1 Vrms Interwinding Capacitance (pF Max.) @ 100 KHz, 0.1 Vrms Pri. 1.2 1.0 25 0.9 TX Sec. 1.3 Pri. 0.9 DCR ( Max.) RX Sec. 1.3 Turns Ratio ( 3%) TX Pri.:Sec. 1CT : 2 RX Pri.:Sec. 1:2 CT Schematic TX1 40 Sec. 39 38 RX1 37 TX2 36 35 34 33 RX2 32 TX3 31 30 29 28 RX3 27 TX4 26 25 24 23 RX4 22 21 Pri. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Package A J Pin 1 I.D. N Dim. PCA EPA3557S Date Code Min. 1.110 .470 .250 --.010 --.590 .016 .008 --0 .025 --------40 21 Solder Pad Layout Q 1 20 A B C D E F G H I J K L M N P Q Dimensions (Inches) Max. Nom. 1.130 .490 .270 --.015 --.610 .022 .012 --8 .045 --------1.120 .480 .260 .950 .012 .050 .600 .019 .010 .085 --.035 .030 .050 .090 .670 (Millimeters) Min. Max. Nom. 28.19 11.94 6.35 --.254 --14.99 .406 .203 --0 .635 --------28.70 12.45 6.86 --.381 --15.49 .559 .305 --8 1.14 --------28.45 12.19 6.60 24.13 .305 1.27 15.24 .483 .254 2.16 --.889 .762 1.27 2.29 17.02 B P D E C K M L H F G I PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 CSA3557S Rev. 4 2/10/99 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 |
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