T1/E1/CEPT/ISDN-PRI
INTERFACE MODULES
Four Transformer Modules for Dual SMT
T1/E1 Ports, Extended Temperature Range
RoHS peak reflow temperature rating 245½C
Optimized for enhanced EMC performance
SMT Dual Port package contains transformers with optional
common mode chokes on both transmit and receive channels
Models matched to leading transceiver ICs
Patented Interlock Base construction for high-reliability
Recognized to UL 1950
Isolation Voltage: 1500 Vrms
Electrical Specifications @ 25°C
RoHS Compliant
Part Number
w/CMC
T1176NL
TX1192NL
TX1193NL
wo/CMC
-
-
TX1323NL
Turns Ratio
(Pri: Sec
±
2%)
Transmit
1CT:2.4CT
1CT:2.42CT
1CT:2CT
Receive
1CT:1CT
1CT:2.42CT
1CT:1CT
Secondary
OCL @ 25½C
(mH MIN)
1.20
1.20
1.20
Primary Pins
Cw/w
(pF MAX)
35
25
35
DCR Pri
(Ω MAX)
.80
.80
.80
Package/
Schematic
WAT/2
WAT/1
WAT/1
Transmit
1-3 & 10-12
4-6 & 10-12
4-6 & 10-12
Receive
21-19 & 18-16
1-3 & 7-9
24-22 & 18-16
EXTENDED TEMPERATURE RANGE MODELS - OPERATING TEMPERATURES
-40½C TO +85½C
Notes:
1. Extended Temperature Range Models
- For extended temperature range transformers (-40½C to +85½C operating temperature range), OCL (Open Circuit Inductance) is specified at both
-40½C and +25½C. At -40½C, OCL is 600
μH
minimum. All other parameters are specified at +25½C only.
2. Turns ratio
is specified primary: secondary (CT = Center Tap).
3. Standard packaging
for the surface mount package is anti-static tubes. Optional Tape & Reel can be ordered by adding a “T” suffix to the part number, (i.e T1176NLT).
Mechanical
WAT
Schematics
Weight
......................3.8 grams
Tape & Reel
..................175/reel
Tray
..............................105/tray
Dimensions:
Inches
Unless otherwise specified, all tolerances are
±
.010
mm
0,25
USA 858 674 8100
1
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai 86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
T662.E (04/12)
pulseelectronics.com
T1/E1/CEPT/ISDN-PRI
INTERFACE MODULES
Four Transformer Modules for Dual SMT
T1/E1 Ports, Extended Temperature Range
Application Notes
1. Flammability
- Materials used in these products are
recognized as UL94-VO approved. Products meet the
requirements of IEC 695-2-2 (Needle Flame Test).
2. Balance Characteristics
- The transformers meet the
requirements for longitudinal balance of FCC part 68.
3. Common Mode Rejection Ratio
- the CMRR for all
transformers is better than 50 dB at 1 MHz.
4. Crosstalk Attenuation
- In the packages which contain
transmit and receive transformers side by side, sufficient
crosstalk attenuation is achieved by the inherent charact
-eristics of the toroid cores as well as by their proper pos
-itioning. The crosstalk attenuation is typically 65 dB or
better.
5. Return Loss
- ITU-T G703 and the European national
regulatory documents specify minimum return loss
levels. The transformers will allow these limits to be
complied within the situations where they are applicable.
Frequency
Return Loss
XMIT
RCV
9 dB
12 dB
15 dB
18 dB
11 dB
14 dB
50-100 KHz
100KHz-2 MHz
2-3 MHz
6. General information
- The transformers are
specifically designed for use in 1.544 Mbps (T1),
2.048 Mbps (CEPT) and ISDN Primary Rate
Interface (PRI) applications. They are matched
to the majority of the line interface transceiver
ICs currently available. Use of the proper trans
-former allows the interface circuit to comply
with ITU-T G.703 and other standards regarding
pulse waveform, return loss, and balance.
For More Information
Pulse China Headquarters
Pulse North China
Pulse South Asia
Pulse North Asia
B402, Shenzhen Academy of
Room 2704/2705
135 Joo Seng Road
3F, No. 198
Aerospace Technol-
Super Ocean Finance
#03-02
Zhongyuan Road
ogy Bldg.
Ctr.
PM Industrial Bldg.
Zhongli City
10th Kejinan Road
2067 Yan An Road
Singapore 368363
Taoyuan County 320
High-Tech Zone
West
Taiwan R. O. C.
Nanshan District
Shanghai 200336
Tel: 886 3 4356768
Shenzen, PR China
China
Tel: 65 6287 8998
Fax: 886 3 4356823 (Pulse)
Tel: 858 674 8100
Tel: 49 7032 78060
518057
Fax: 65 6287 8998
Fax: 886 3 4356820 (FRE)
Fax: 858 674 8262
Fax: 49 7032 7806 135
Tel: 86 755 33966678
Tel: 86 21 62787060
Fax: 86 755 33966700
Fax: 86 2162786973
Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be
trademarks or registered trademarks of their respective owners. © Copyright, 2012. Pulse Electronics, Inc. All rights reserved.
Pulse Worldwide
Headquarters
12220 World Trade Drive
San Diego, CA
92128
U.S.A.
Pulse Europe
Einsteinstrasse 1
D-71083 Herren-
berg
Germany
2
pulseelectronics.com
T662.E (04/12)
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