RHOMBUS-IND T

ISDN U-Interface Transformers
Manufacturer
Name
Motorola
For both 2B1Q & 4B3T ISDN U-Interface Applications
Excellent Longitudinal Balance
Meets key parameters of ANSI T1.601-1992
Isolation 2000 VRMS & 3000 VRMS Minimum
Surface Mount Versions Available
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
(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)
12
11.6
16
20
20
6.0
2.4
18
20
13
6.0
12.6
20
2.7
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
DC
Bias
(mA)
80
60
60
60
60
60
60
60
60
80
60
60
60
60
Coding
Isolation
(VRMS)
Schem.
Style (3)
2B1Q
2B1Q
2B1Q
2B1Q
2B1Q
2B1Q
4B3T
2B1Q
2B1Q
2B1Q
2B1Q
2B1Q
2B1Q
4B3T
2000
2000
2000
2000
2000
2000
2000
3000
3000
3000
3000
3000
3000
3000
A
A
B
B
A
A
A
B
A
A
A
A
B
A
Longitudinal Balance (2B1Q Coding)
281 Hz to 40 KHz
55 dB min.
> 40 KHz
-20 dB/decade
1.070
(27.18)
REF. .900
(22.86)
REF.
10
.150
(3.81)
TYP.
Bottom View
2
SEC
d e v ic e
Surge Voltage Capability:
Metallic Voltage: 800 V peak, 10/700 µS
Longitudinal Voltage: 2400 V peak, 10/560 µS
.570
(14.48)
MAX.
.040
(1.02)
TYP.
10
Top View
9
3
8
4
7
5
6
.920
(23.37)
MAX.
.150
(3.81)
TYP.
1
9
2
8
3
7
4
6
5
Terminal Dimensions
.020 (.051) X .040 (1.02) Typical.
SEC
d e v ic e
Schematic "B"
PRI
lin e
1.070
(27.18)
REF. .900
(22.86)
REF.
1
.100
(2.54)
MIN.
PRI
lin e
Primary is Line Side / Secondary is Chip Side
20 dB min.
Package Physical Dimensions
in inches (mm)
.040
(1.02)
TYP.
T-13221
T-13224
T-13220
T-13222
T-13225
T-13219
Operating Temp. Range -400C to +850C
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
.920
(23.37)
MAX.
T-13207
T-13211
T-13212
T-13214
T-13215
T-13210
Schematic "A"
DCR (1) DCR (2)
max.
max.
(Ω)
(Ω)
Line
Side
Pins
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"
.470
(11.94)
MAX.
Transformer High Isolation
P/N
P/N
T-13209
T-13223
Motorola
MC145572
National
TP 3410
National
TP 3410
Siemens
PEB 2091
Siemens
PEB 2090/20901
SGS-Thomson
SD 5411
Designed for use with leading Transceiver Chips
Electrical Specifications at 25OC
Turns
OCL (1, 3)
Part
Ratio
Pri +6%
( mH )
Number
(+3%)
I.C.
P/N
MC145472
.470
(11.94)
MAX.
1.19
(30.23)
.090
(2.29)
TYP.
.800
(20.32)
1.10 (27.94)
1.04 (26.42)
.150
(3.81)
Termination Numbers for Reference Only.
.080
(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.
Rhombus
Industries Inc.
For other values & Custom Designs, contact factory.
17
.180
(4.57)
ISDN-U - 4/99
15801 Chemical Lane, Huntington Beach, CA 92649-1595
Tel: (714) 898-0960 • Fax: (714) 896-0971