ISDN S-Interface
Transformers
Dual - Transmit / Receive
T-1050X 2000V Series
Meets the Pulse Waveform Template
of CCITT I.430when recommended
Transformer & Chip pair are used.
Excellent Longitudinal Balance
2000V & 4000V RMS min. Isolation Versions
UL 1459 Recognized
R
Electrical Specifications
(3,4)
at 25
O
C
4000V
RMS
2000V
RMS
Isolation
Isolation
R
Transmit
Receive
SMD
P/N
SMD
P/N
Ratio
( + 2%)
OCL
(1, 2)
Pri. min.
( mH )
L
L
Sec. max.
(
µH
)
Cw/w
max.
( pF )
CD pri
max.
( pF )
DCR pri
+ 15%
(
Ω
)
DCR sec
+ 15%
(
Ω
)
T-10550
T-10551
T-10552
T-10553
T-10554
T-10555
T-10556
T-10500
T-10501
T-10502
T-10503
T-10504
T-10505
T-10506
(2400V
RMS
Isolation)
T
R
T
R
T
R
T
R
T
R
T
R
T
R
1:2
1:1
1:1
1:1
1:1.8
1:2.5
1:2
1:2
1:2.5
1:2.5
1:2
1:2
1:2.5
1:2.5
22
22
22
22
22
22
22
22
22
22
22
22
22
22
15
5
5
5
15
30
15
15
15 - 40
15 - 40
11
11
4
4
100
100
100
100
100
100
100
100
100
100
100
100
100
100
80
40
40
40
140
150
80
80
110
110
180
180
100
100
2.3
2.4
2.4
2.4
2.5
2.5
2.3
2.3
2.5
2.5
2.5
2.5
2.3 max.
2.3 max.
4.0
2.4
2.4
2.4
4.2
5.8
4.0
4.0
5.8
5.8
5.0
5.0
5.8 max.
5.8 max.
1) Primary is Line Side
2) OCL @10 KHz and 700 mV, except
T-10506, T-10556 voltage is 500mV
3) Unbalanced current
at TE:
∆
Idc = 1 mA max.
4) Longitudinal Conversion Loss:
10 kHz to 300 kHz is 60dB min.
Schematic T-10500 thru T-10505
and T-10550 thru T-10555
Schematic T-10506 & T-10556
Package Dimensions in Inches (mm)
Specifications subject to change without notice.
For other values & Custom Designs, contact factory.
ISDNDUAL - 4/99
Rhombus
Industries Inc.
14
15801 Chemical Lane, Huntington Beach, CA 92649-1595
Tel: (714) 898-0960
•
Fax: (714) 896-0971
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