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Filtran - ISDN U-BUS Input/Output Transformer

Numéro de référence TEW4914
Description ISDN U-BUS Input/Output Transformer
Fabricant Filtran 
Logo Filtran 





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TEW4914 fiche technique
ISDN
www.DataSheet4U.com
U-BUS Input/Output Transformer
TEW4914 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.
TEW4914 & -1 meet the electri-
cal requirements for the
MOTOROLA MC145472 de-
vice.
Applications:
Low profile construction.
Up to 50 mA line current.
TEW4914-1 is certified to
EN60950 and EN41003.
TEW4914
MECHANICAL
DOT AT
PIN #1
ELECTRICAL
Line Impedance
Inductance
Leakage Inductance
Winding Resistance
Turns Ratio
Longitudinal Balance
DC Capability (Line Side)
Dielectric Strength
(1-4)
(6-7)
(1-2) & (3-4)
(6-7)
(6-7) : (1-4)
1 - 4 KHz
4 - 160 KHz
(1-4)
DEVICE
6
7
1
2
LINE
3
4
DIMENSIONS, Inches (mm)
P/N L W H A B C
S
TEW4914 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)
TEW4914
135
> 25 mH
< 20 µH
3.8
2.9
1:2
> 60 dB
> 55 dB
25 mA
1500 V rms
TEW4914-1
135
> 25 mH
< 20 µH
4.9
3.3
1:2
> 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
4-13

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