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