CEPT/T1
Input/Output Transformer
TEW5721
TEW5721 is designed to be used as an
Input Transformer in the ISDN primary
rate access network with the following
devices:
TEW5721-3 is designed to be used as an Input
and Output Transformer for:
-
Siemens PEB2254
-
-
-
Dallas
AT&T
DS2187
7290
TEW5721-4 is designed for:
PMC-Sierra PM4351
T
-
PMC/Sierra PM4341 T1X &
PM6341 E1
TEW5721-5 is designed to be used as input
transformer requiring turns ratios 1 : 2 or 1 : 1
TEW5721-1 is designed to be used as
an Output Transformer for:
Features
Low cost.
-
-
-
BrooktreeBT8069B
TEW5721-6 is designed to be used as input
transformer requiring turns ratios 1 : 3
Level One
Mitel
LXT310,318,360
MT9075
Through Hole and SMD.
For SMD version:
Add letter 'S' after part number.
E.g. TEW5721S-4.TDM Multiplexers.
TEW5721-2 is designed to be used as
an Input Transformer for:
-
-
-
-
BrooktreeBT8069B
Level One
Dallas
LXT310, 318, 360
DS2151Q, DS2153Q
MT9075
Mitel
MECHANICAL
TOP VIEW
13.0
10.7
DIMENSIONS
ARE IN MM.
1.6
ALL DIMENSIONS
ARE IN MM
3
1
4
6
9.4
1.3
5.08
2.54
DIA O.65
2.54
0.7
8.6
13.5
6
5
2
4
DRILL 1.0 mm
6 PLACES
Recommended
foot print
1
3
8.7
GRID 2.54
x
2.54
WHITE DOT
TEW5721S
TEW5721
6
5
4
3
4
5
6
6
4
1
2
6
1
2
3
1
3
5
2
3
1
6
4
4
3
1
TEW5721-6
TEW5721-1
TEW5721-3, -4
TEW5721-5
TEW5721-2
ELECTRICAL SPECIFICATION
TEW5721
-1
-2
-3
-4
100,120
-5
-6
Line Impedance
Ohms
75, 100 75, 100
& 120
1 : 2 ct
75, 100
& 120
1 : 1
75, 100
& 120
75, 100
& 120
100
& 120
1 : 2ct
Turns Ratio
pri. to sec.
1: 1.41ct 1 : 2.41ct 1 : 1 : 1
1 ct : 3ct
(1 - 3)
> 1.8
Pimary pin number
Primary Ind.
(4 - 6)
> 1.8
(4 - 6)
> 1.2
(4 - 6)
> 1.2
(4 - 6)
> 2.8
(4 - 6)
> 1.3
(1 - 6)
> 1.2
mH
Longitudinal Bal.
Return Loss
as per T1.408 & I.431
as per T1.408 & G.703
Dielectric Strength
V rms
1500
1500
1500
1500
1500
1500
1500
Filtran Limited
229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3,
Tel : (613) 226-1626 Fax : (613) 226-7124
2-49