Surface Mount Through Hole (1500 Vrms) Through Hole (3000 Vrms)
Chip Manufacturer Transmit Receive Transmit Receive Transmit Receive
Lucent
T7296 PE-65967 – PE-65966 – PE-68629 –
Exar
XR-T7296 PE-65967 – PE-65966 – PE-68629 –
Silicon Systems
SSI 78P236, DS3 PE-65968 PE-65967 PE-65969 PE-65966 PE-68630 PE-68629
SSI 78P7200, DS3 PE-65968 PE-65967 PE-65969 PE-65966 PE-68630 PE-68629
SSI 78P7200, E3 PE-65968 PE-65968 PE-65969 PE-65969 PE-68630 PE-68630
SSI 78P2361, STS-1 PE-65968 PE-65967 PE-65969 PE-65966 PE-68630 PE-68629
SSI 78P2362, E3 PE-65968 PE-65967 PE-65969 PE-65966 PE-68630 PE-68629
Transwitch
MRT TXC-020505,E3 PE-65968 PE-65967 PE-65969 PE-65966 PE-68630 PE-68629
ART 02020 DS3, STS-1 PE-65967 PE-65967 PE-65966 PE-65966 PE-68629 PE-68629
T3/DS3/E3/STS-1 TRANSFORMERS
Designed for T3, DS3, E3 and
STS-1 Interfaces
Application Notes
1. The transformers have been developed for use as transmit
and receive transformers in T3 or DS3 links, using bit rates of
44.736 Mbps and B3ZS coding on coaxial cable. The charac-
teristics allow compliance with the pulse templates of CCITT
G.703 as well as ATT T.A.34. The transformers are also suit-
able for the E3 interface at 34.368 Mbps with HDB3 coding or
STS-1 applications, at 51.84 Mbps according to Bellcore TA-
NWT-000253. The LC-1 and QC-1 packages are pin compati-
ble with T1-1 and T4-1 6-pin DIP packages.
2. Bandwidth specifications are typical in a 75 Ωsystem. Return
loss meets the requirements of G.703. Materials used in the
products are UL94-V0 recognized. Products meet the require-
ments of IEC 695-2-2 (Needle Flame Test).
3. The surface mount LS-1 and TR-2 packages are available with
optional tape and reel packaging. To order, add a “T” suffix to
the part number (i.e.: PE-65967T).
4. The Transwitch MRT TXC-02050 chip is also designed to
operate in 6.312 and 8.448 Mbps interfaces. A 1:1 transformer
(PE-64934) is recommended.
5. All transformers listed on this data sheet are RoHS-5
compliant. For RoHS-6 compliant versions of these parts,
please contact Pulse.
Transformer Selection Guide