ISDN TEW6018 U-BUS Input/Output Transformer TEW6018 is designed to interface with the subscribers premises (NT) and the 2- wire line side of the Central Office Equipment (LT) in the ISDN Network. Features: TEW6018 meet the electrical requirements for the MOTOROLA MC145572 device. • Low profile construction. • Up to 50 mA line current. • TEW6018 meets the requirements of BS6301 for reinforced insulation, clearance and creepage distances between the line and the device side. TEW6018-S is the SMD version MECHANICAL 0.90 max. 0.12 1.083 ± 0.010 0.15 ( 8 PLACES) 0.41 max. 0.85 ± 0.010 0.60 0.070 0.15 0.15 0.040 x 0.012 0.2 DOT AT PIN #1 1 0.93 ± 0.010 2 3 0.90 max. 8 7 6 1.020 4 RECOMMENDED FOOT PRINT 0.4 " max 5 0.945 ± 0.010 1 Sec. (Device ) 6 2 7 3 1 Pri. (Line) Sec. (Device ) 7 2 9 4 4 5 Issue; A 96/09/26 6018.chp TEW6018 TEW6018-S ELECTRICAL TEW6018 TEW6018-S Line Impedance 135 Ω 135 Ω > 28 mH < 20 µH 5.4 Ω nom. 5.7 Ω nom. 1 : 1.25 > 60 dB > 55 dB 50 mA 4000 V rms > 28 mH < 20 mH 5.4 Ω nom. 5.7 Ω nom. 1 : 1.25 > 60 dB > 55 dB 50 mA 4000V Inductance Leakage Inductance Winding Resistance Turns Ratio Longitudinal Balance DC Capability (Line Side) Dielectric Strength Filtran Limited Pri. (Line) Pri. Sec. Pri.) Sec.) Sec. : Pri. 1 - 4 KHz 4 - 160 KHz Pri. 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3 Tel : (613) 226-1626 Fax : (613) 226-7124 4-25