TEW5043 Datasheet, PDF (1/1 Pages) Filtran LTD – CEPT Matching Transformer

CEPT
Matching Transformer
TEW5043
TEW5043 is specifically
designed to match a
120 Ω twisted pair to a 75 Ω
coaxial line in the CEPT trunk.
The Longitudinal balance
exceeds the requirements of
CCITT I.431.
MECHANICAL
The Return Loss exceeds the
requirements of
CCITT G.703 and BS6328.
DO NOT USE IN NEW
DESIGNS.
Use TEW5054 where
possible.
White dot
at pin 1
Top view
19.4 MAX
13 ± 0.1
13.0
9.0 ± 0.1
2.54 ( 8 PLACES)
0.6
All dimensions
are in mm.
1
75 Ω
unbal.
6
9
8 120 Ω
bal.
7
2.76
2.54
1.27
10.16
20.32
RECOMMENDED
FOOT PRINT
ELECTRICAL SPECIFICATIONS
TEW5043
Line Impedance
Turns ratio
Inductance
Pulse Mask
Longitudinal Bal.
Pri. (1 - 6)
Sec. (7 - 9)
(1 - 6) : (7 - 9)
(7 - 9)
(CCITT I.431)
75 Ω
120 Ω
1 : 1.26
> 5.0 mH
CEPT
> 40 dB
Return Loss
(CCITT G.703 and BS6328)
Dielectric Strength
> 15 dB
> 20 dB
1500 Vrms
unbalanced
balanced
50 - 1544 KHz
50 - 100 KHz
100- 3000 KHz
Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3,
5-5
Tel: [phone] Fax: [phone]