T1/E1/CEPT/ISDN-PRI TRANSFORMER P/N: S1048 DATA SHEET A. General Specifications: 1. Dual SMT package contains both transmit and receive transformers. 2. Common footprint and pinout with a choice of operating temperature ranges. 3. Models matched to leading transceiver ICs 4. IC grade transfer-molded package withstands 2350C IR reflow 5. Patented interlock base construction for high reliability B. Electrical Specifications @ 250C : 1. Turns Ratio(PRI:SEC±5%) : 1CT:141CT &1CT:1CT 2. OCL: 350 Min @100KHz/0.2Vrms 3. L.L: 0.8 µH Max(Pin16-15 short 10-11) & 0.5 µH Max(Pin 1-2 short 6-7) 4. Cw/w: 28 pF Max(Pin1-2 to 7-6) & 25 pF Max(Pin16-15 to 10-11) 5. DCR Pri : 0.70 Ω Max & 0.70 Ω Max 6. DCR Sec: 0.90 Ω Max & 0.90 Ω Max 7. Primary Pins : 16-15,1-2 8. HI-POT :1500Vrms. C. Schematic & Mechanical : Prepared :Qingli Wu Approved: Xu Wenbing Date :2001/02/22 Drawing no.: ISDN Transformer REV.: A0 Page : 1/1