T1121NLT PULSE ELECTRONICS CORPORATION, T1121NLT Datasheet - Page 2

• Manufacturer Part Number: T1121NLT
• Manufacturer: PULSE ELECTRONICS CORPORATION

Specifications of T1121NLT

• Operating Temp Range: 0C to 70C
• Mounting: Surface Mount
• Pin Count: 16
• Interwinding Capacitance Max: 40/40pF
• Isolation Voltage (max): 1500VrmsV
• Lead Style: Gull Wing
• Ocl Inductance (max): 1.5(Min)/1.5(Min)mH
• Operating Temperature Max Deg. C: 70C
• Operating Temperature Min Deg. C: 0C
• Primary Leakage Inductance (max): 0.8/0.8uH
• Product Depth (mm): 9.53mm
• Product Height (mm): 6.22mm
• Product Length (mm): 12.83mm
• Return Loss (min): 9/12dB
• Turns Ratio: 1CT:1.5CT/1CT:1.5CT
• Lead Free Status / RoHS Status: Compliant

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, 2007. Pulse Engineering, Inc. All rights reserved.
www.pulseeng.com
T1/CEPT/ISDN-PRI TRANSFORMER
Quad Port SMT Transformer Module with
IC Side Protection
Application Notes
For More Information:
Pulse Worldwide
Headquarters
12220 World Trade Dr.
San Diego, CA 92128
U.S.A.
www.pulseeng.com
Tel: [phone]
Fax: [phone]
1.
2.
3.
4.
5.
ET Product — All coils have an ET product of 10 V-µsec minimum.
Flammability — Materials used in the products are recognized
as UL94-VO approved. Products meet the requirements of
IEC 695-2-2 (Needle Flame Test).
ments for longitudinal balance of FCC part 68.
Common Mode Rejection Ratio — the CMRR for all transformers
is better than 50 dB at 1 MHz. A typical test circuit is shown below.
Crosstalk Attenuation — In the dual packages, which contain
transmit and receive transformers side by side, sufficient crosstalk
attenuation is achieved by the inherent characteristics of the toroid
cores as well as by their proper positioning. The crosstalk attenua-
tion is typically 50 dB or better from 100 KHz to 10 MHz. This
result was established with the test circuit shown below.
Balance Characteristics — The transformers meet the require-
P1 P2
HP-8751A
P1 P2
HP-8751A
Pulse
Europe
Einsteinstrasse 1
D-71083 Herrenberg
Germany
Tel: [phone]
Fax: [phone]
BALUN
50:100
BALUN
50:100
100
XFMR
Pulse China Headquarters
B402, Shenzhen
Tech-Innovation International
Tenth Kejinan Rd.
High-Tech Industrial Park
Nanshan District, Shenzhen
China
Tel: [phone]
Fax: [phone]
XFMR
BALUN
100:50
BALUN
100:50
100
6.
7.
8.
9.
10. Diode Vendor does not recommend connecting directly to Vcc.
Return Loss — ITU-T G.703 and 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
Surge Voltage Capability – All transformers and chokes
meet surge voltage tests according to the most stringent
regulatory documents when system designs include the proper
voltage and current suppression devices:
Isolation Voltage — 100% of transformers are tested during
production to the specified isolation voltage level.
General Information — The T9021 is specifically designed for
use in 1.544 Mbps (T1), 2.048 Mbps (CEPT) and ISDN Primary
rate (PRI) interface applications. They are matched to the majority
of
available. Use of the proper transformer allows the interface
circuit to comply with ITU-T G.703 and other standards regarding
pulse waveform, return loss, and balance.
Pulse North China
Room 1503
XinYin Building
No. 888 YiShan Rd.
Shanghai 200233
China
Tel: [phone]
Fax: [phone]
Metallic Voltage:
Longitudinal Voltage: 2,400 V peak, 10/700 µsec
the
XMIT
REC
line
50-100 KHz 100 KHz-2 MHz
interface
12 dB
9 dB
Pulse South Asia
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
Tel: [phone]
Fax: [phone]
800 V peak, 10/560 µsec
transceiver
15 dB
18 dB
Pulse North Asia
No. 26
Kao Ching Rd.
Yang Mei Chen
Tao Yuan Hsien
Taiwan, R. O. C.
Tel: [phone]
Fax: [phone]
ICs
T657.B (8/07)
2-3 MHz
11 dB
14 dB
currently