T1/CEPT/ISDN-PRI Transformer EPA3372S ELECTRONICS INC. • Optimized for Siemens PEB2254 Series T1/ISDN Controllers • • Dual Transformer in SMD Package • • High Isolation between Pri-Sec.(min 3kV) • • For compliance with regulatory specifications, • contact PCA Quality Department • Package in Tubes. Tape and Reel Optional • Electrical Parameters @ 25° C Primary Inductance (mH Min.) (*) Leakage Inductance (µH Max.) (†) Interwinding Capacitance (pF Max.) Turns Ratio (±5%) DCR (Ω Max.) Pins 16-14 Pins 11-9 A B A B A B Pri. A Sec. A Pri. B Sec. B 1.0 1.0 0.95 0.95 30 30 1CT:1.41CT 1CT:1.41CT 0.70 0.90 0.70 0.90 • *Measured @ 100 KHz, 0.1 Vrms • • †Reflects increased isolation between windings • B A Schematic Sec 1 16 2 15 3 14 Sec Pri 6 11 7 10 8 9 Pri Package A Dimensions N J Pin 1 I.D. Dim. PCA EPA3372S D.C. B Q D A B C D E F G H I J K L M N P Q P M E C H Solder Pad Layout F K L (Inches) Min. Max. Nom. .485 .260 .305 .350 .005 .050 .350 .016 .010 .073 0° .025 .505 .280 .325 Typ. .015 Typ. .370 .022 Typ. Typ. 8° .045 (Millimeters) Min. Max. Nom. 12.32 6.60 7.75 8.89 .127 1.27 8.89 .406 .254 1.85 0° .635 .030 .050 .055 .400 12.83 7.11 8.26 Typ. .381 Typ. 9.40 .559 Typ. Typ. 8° 1.14 .762 1.27 1.40 10.16 I G PCA ELECTRONICS, INC. 6799 SCHOENBORN ST. NORTH HILLS, CA 91343 CSA3372S Rev. - 4/15/97 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pcainc.com