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T1/E1/CEPT/ISDN-PRI INTERFACE MODULES P/N:S1220M DATA SHEET Page : 1/1 Feature l Optimized for enhanced EMC performance. l Extended temperature range. l Dual SMT package contains transformers with Common Mode Chokes on both transmit and receive channels. l Models matched to leading transceiver ICS. l Patented interlock Base construction for high reliability. l Operating temperature range: -40°C to +85°C. l Storage temperature range: -40℃ to +125℃. Electrical Specifications @ 25°C Part Number Turns Ratio Pri: Sec (±2%) Secondary OCL (mH Min) @ 25℃ Cw/w (pF Max) L.L (uH Max) Pri DCR (Ω Max) Primary Pins HI-POT (Vrms) S1220M 1CT:1CT 1.20 35 0.60 0.90 (1-3)&(4-6) 1500 Schematic Mechanical Bothhandusa.com