(PDF) TEW4897 Datasheet - ISDN U-BUS Input/Output Transformer

Número de pieza	TEW4897
Descripción	ISDN U-BUS Input/Output Transformer
Fabricantes	Filtran
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No Preview Available ! ISDN www.DataSheet4U.com U-BUS Input/Output Transformer TEW4897 is designed to inter- face with the subscribers prem- ises (NT) and the 2- wire line side of the Central Office Equip- ment (LT) in the ISDN Network. TEW4897 meets the electrical re- quirements for the SIEMENS PEB20902/IEC (4B3T) device. Exceeds the requirements of: EN60950 and EN41003. Applications: • Low profile construction. • Up to 50 mA line current. • High insulation between line and equipment side. TEW4897 MECHANICAL DOT AT PIN #1 DEVICE 6 7 1 2 LINE 3 4 DIMENSIONS, Inches (mm) P/N L W H A B C S TEW4897 0.87 0.83 0.63 0.60 0.20 0.12 0.025 (22.0) (21.0) (16.0)(15.3) (5.1) (3.0) (0.64) ELECTRICAL Line Impedance Inductance Leakage Inductance Distributed Capacitance Winding Resistance Turns Ratio Longitudinal Balance DC Capability (Line Side) Dielectric Strength (6-7) (6-7) (1-4) (1-4) (6-7) (6-7) : (1-4) 1 - 4 KHz 4 - 160 KHz 150 Ω > 3.7 mH < 12.5 µH < 110 pF < 2.5 Ω < 1.74 Ω 1 : 1.32 > 60 dB > 55 dB 50 mA 4000 V rms Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3 Tel : (613) 226-1626 Fax : (613) 226-7124 4-12 1 page

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PDF TEW4897 Data sheet ( Hoja de datos )