ISDN U-Interface Transformers
For both 2B1Q & 4B3T ISDN U-Interface Applications
Excellent Longitudinal Balance
Designed for use with leading Transceiver Chips
Meets key parameters of ANSI T1.601-1992
Isolation 2000 V
RMS
& 3000 V
RMS
Minimum
Surface Mount Versions Available
Electrical Specifications at 25
O
C
Turns
OCL
(1, 3)
Part
Ratio
Pri +6%
( mH )
Number
(+3%)
T-13207
T-13209
T-13210
T-13211
T-13212
T-13214
T-13215
T-13219
T-13220
T-13221
T-13222
T-13223
T-13224
T-13225
1.25:1
2.00:1
1.50:1
1.50:1
1.50:1
1.65:1
1.32:1
1.50:1
1.50:1
1.25:1
1.65:1
2.00:1
1.50:1
1.32:1
28.0
27.0
15.0
27.0
27.0
15.5
7.7
15.0
27.0
25.5
15.5
27.0
27.0
7.7
Manufacturer
Name
Motorola
I.C.
P/N
MC145472
Transformer High Isolation
P/N
P/N
T-13209
T-13223
T-13207
T-13211
T-13212
T-13214
T-13215
T-13210
Schematic "A"
T-13221
T-13224
T-13220
T-13222
T-13225
T-13219
Motorola
MC145572
National
TP 3410
National
TP 3410
Siemens
PEB 2091
Siemens
PEB 2090/20901
SGS-Thomson
SD 5411
Line
Side
Pins
(1-5)
(1-5)
(4-2)
(4-2)
(1-5)
(1-5)
(1-5)
(4-2)
(1-5)
(1-5)
(1-5)
(1-5)
(4-2)
(1-5)
DCR
max.
(
Ω
)
12
11.6
16
20
20
6.0
2.4
18
20
13
6.0
12.6
20
2.7
(1)
DCR
max.
(
Ω
)
8
6.4
2.5
3.0
3.0
3.5
2.7
3.0
3.0
9.0
3.5
7.4
3.0
3.0
(2)
DC
Bias
(mA)
80
60
60
60
60
60
60
60
60
80
60
60
60
60
Coding
2B1Q
2B1Q
2B1Q
2B1Q
2B1Q
2B1Q
4B3T
2B1Q
2B1Q
2B1Q
2B1Q
2B1Q
2B1Q
4B3T
Isolation
(V
RMS
)
2000
2000
2000
2000
2000
2000
2000
3000
3000
3000
3000
3000
3000
3000
Schem.
Style
(3)
A
A
B
B
A
A
A
B
A
A
A
A
B
A
PRI
lin e
SEC
d e vice
Schematic "B"
PRI
lin e
SEC
d e v ic e
1. Line Side.
2. Device Side
3. OCL Tested @10 kHz / 700 mV,
pins 2&4 shorted for Schem. "A";
pins 1&5 shorted for Schem. "B."
3. For all parts unused Pin # 6
can be removed for keying to
printed circuit board.
Add suffix "-9"
Longitudinal Balance (2B1Q Coding)
281 Hz to 40 KHz
55 dB min.
> 40 KHz
-20 dB/decade
Longitudinal Balance (4B3T Coding)
5 KHz
20 dB min.
20 KHz to 150 KHz
40 dB min.
1 MHz
36 dB min.
Return Loss
10 and 25 KHz
20 dB min.
1.070
(27.18)
REF. .900
(22.86)
REF.
1
Operating Temp. Range -40
0
C to +85
0
C
Primary is Line Side / Secondary is Chip Side
Surge Voltage Capability:
Metallic Voltage: 800 V peak, 10/700
µS
Longitudinal Voltage: 2400 V peak, 10/560
µS
Package Physical Dimensions
in inches (mm)
1.070
(27.18)
REF. .900
(22.86)
REF.
10
Bottom View
1
2
3
4
5
.570
(14.48)
MAX.
10
9
8
7
6
2
3
4
5
Top View
.040
(1.02)
TYP.
.920
(23.37)
MAX.
.150
(3.81)
TYP.
.470
(11.94)
MAX.
.100
(2.54)
MIN.
.040
(1.02)
TYP.
.150
(3.81)
TYP.
.920
(23.37)
MAX.
9
8
7
6
.470
(11.94)
MAX.
1.19
(30.23)
.090
(2.29)
TYP.
Terminal Dimensions
.020 (.051) X .040 (1.02) Typical.
.800
(20.32)
1.10 (27.94)
1.04 (26.42)
.150
(3.81)
.080
Termination Numbers for Reference Only.
(2.03)
For Surface Mount Versions
of all parts on this page
Add suffix "G" to part number: T-13207G
With Pin 6 removed: T-13207-9G
Specifications subject to change without notice.
.180
(4.57)
ISDN-U - 4/99
For other values & Custom Designs, contact factory.
Rhombus
Industries Inc.
17
15801 Chemical Lane, Huntington Beach, CA 92649-1595
Tel: (714) 898-0960
•
Fax: (714) 896-0971
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