Mechanicals Schematics
T3020
(DATE CODE)
(COUNTRY OF ORIGIN)
.505 MAX
12,83
.350
8,89
.245 MAX
6,22
.050
1,27
.375 MAX
9,53
.280MAX
7,11
.004/0,10
16 SURFACES
16X .018 ± .002
0,46 ± 0,05
.050
1,27
.350
8,89
.328
8,33
SUGGESTED PAD LAYOUT
16X .029 ± .001
0,74 ± 0,03
.075
1,91
0°– 8°
.010
0,25
16 14
132
11 9
68
1
16 15
12
11 9
78
3
10
16 15
127
11 9
68
2
10
Dimensions: Inches
mm
Unless otherwise specified, all tolerances are ± .010
0,25
Turns OCL Primary OCL Primary LLCW/W Isolation Primary
Part Ratio @ 25°C @ -40°C (µH MAX) (pF MAX) Voltage Package/ Pins
Number (±2%) (µH MIN) (µH MIN) (Vrms MIN) Schematic
TX RX TX RX TX RX TX RX TX RX TX RX
T3020 1:2CT 1:1 40 100 19 40 .120 .120 10 10 1500 BH/1 16-14 6-8
TX3025 1CT:1CT 1:1 100 100 40 40 .120 .120 10 10 1500 BH/2 6-8 16-15
TX3026 1:2CT 1:1 100 100 40 40 .120 .120 10 10 1500 BH/3 7-8 16-15
NOTE: Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part number (ex: T3020T).
T3/DS3/E3/STS-1 TRANSFORMERS
Dual SMT, Extended Temperature Range
Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C
Dual SMT package contains both transmit and
receive transformers
Operating temperature of -40°C to +85°C
Models matched to leading transceiver ICs
Return loss meets requirements of G.703
1500 Vrms isolation per UL1459 and UL1950
BH
PRELIMINARY T655.P (3/02)
U.S: 858 674 8100
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U.K: 44 1483 401 700
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France: 33 3 84 35 04 04
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Singapore: 65 287 8998
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Taiwan: 886 2 2698 0228
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http://www.pulseeng.com
Weight . . . . . . . . . . . . . .1.0 grams
Tape & Reel . . . . . . . . . . . .600/reel
Tube . . . . . . . . . . . . . . . . . .40/tube
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.
For More Information :
Printed on recycled paper. ©2002, Pulse Engineering, Inc. PRELIMINARY T655.P (3/02)
Transformer Selection Guide
IC Manufacturer Octal SMT Dual SMT Single SMT Single THT Single THT
IC Part Number Standard Temp Ext Temp Standard Temp Extended Temp 3 kVrms
TX & RX TX &RX Transmit Receive Transmit Receive Transmit Receive Transmit Receive
Conexant (Rockwell)
CN8331, CN8332, CN8333 T3048 T3020 1 PE-65967 PE-65967 T3001 T3001 PE-65966 PE-65966 PE-68629 PE-68629
Infineon Technologies T3011/
PEB3452 — — — — T3027 T3001 ————
Lucent Technologies
T7296 T3048 — PE-65967 — T3001 — PE-65966 — PE-68629
Exar
XRT7295, XRT7295E T3048 T3020 1 — PE-65967 — T3001 — PE-65966 — PE-68629
XRT7296, XRT7298 T3048 T3020 1 PE-65967 — T3001 — PE-65966 — PE-68629 —
XRT73L00, L03,L04 T3048 T3020 1 PE-65967 PE-65967 T3001 T3001 PE-65966 PE-65966 PE-68629 PE-68629
XRT7300, XRT7302 T3048 T3020 1 PE-65967 PE-65967 T3001 T3001 PE-65966 PE-65966 PE-68629 PE-68629
TDK Semiconductor
78P2241 T3049/T3048 T3020 PE-65968 PE-65967 T3002 T3001 PE-65969 PE-65966 PE-68630 PE-68629
78P2244/43/42 T3049/T3048 T3020 PE-65968 PE-65967 T3002 T3001 PE-65969 PE-65966 PE-68630 PE-68629
78P7200L T3049/T3048 T3020 PE-65968 PE-65967 T3002 T3001 PE-65969 PE-65966 PE-68630 PE-68629
78P7200 T3049 2 T3020 1 PE-65968 PE-65968 T3002 T3002 PE-65969 PE-65969 PE-68630 PE-68630
78P2362, 78P2361 T3049/T3048 T3020 PE-65968 PE-65967 T3002 T3001 PE-65969 PE-65966 PE-68630 PE-68629
Transwitch
MRT TXC-02050 E3 T3049/T3048 T3020 PE-65968 PE-65967 T3002 T3001 PE-65969 PE-65966 PE-68630 PE-68629
ART TXC-02020 T3048 T3020 1 PE-65967 PE-65967 T3001 T3001 PE-65966 PE-65966 PE-68629 PE-68629
ARTE TXC-02021 T3048 T3020 1 PE-65967 PE-65967 T3001 T3001 PE-65966 PE-65966 PE-68629 PE-68629
DART TXC-2030, DS3 T3048 T3020 1 PE-65967 PE-65967 T3001 T3001 PE-65966 PE-65966 PE-68629 PE-68629
DART TXC-2030, E3 T3049/T3048 T3020 PE-65968 PE-65967 T3002 T3001 PE-65969 PE-65966 PE-68630 PE-68629
DS3LIM-SN TXC20153G T3048 T3020 1 PE-65967 PE-65967 T3001 T3001 PE-65966 PE-65966 PE-68629 PE-68629
E3LIM TXC-20163 T3049/T3048 T3020 PE-65968 PE-65967 T3002 T3001 PE-65969 PE-65966 PE-68630 PE-68629
NOTE: For other T3/DS3/E3/STS-1 Transformers, please see data sheets T606 and T619.
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.
2. Bandwidth specifications are typical in a 75
W
system. 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. For those applications requiring a 1:1 turns ratio on the trans-
mit side, use only one half of the secondary (2CT) winding.
4. Optional Tape & Reel packaging can be ordered by adding a
“T” suffix to the part number (i.e. TS3026T)
T3/DS3/E3/STS-1 TRANSFORMERS
Dual SMT, Extended Temperature Range
UNITED STATES
(Worldwide)
12220 World Trade Drive
San Diego, CA 92128
U.S.A.
http://www.pulseeng.com
TEL: 858 674 8100
FAX: 858 674 8262
UNITED KINGDOM
(Northern Europe)
1 & 2 Huxley Road
The Surrey Research Park
Guildford, Surrey GU2 5RE
United Kingdom
TEL: 44 1483 401700
FAX: 44 1483 401701
FRANCE
(Southern Europe)
Zone Industrielle
F-39270
Orgelet
France
TEL: 33 3 84 35 04 04
FAX: 33 3 84 25 46 41
TAIWAN, R.O.C.
(Northern Asia)
3F-4, No. 81, Sec. 1
HsinTai Wu Road
Hsi-Chih, Taipei Hsien
Taiwan, R.O.C.
Tel: 886 2 2698 0228
FAX: 886 2 2698 0948
SINGAPORE
(Southern Asia)
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
TEL: 65 287 8998
FAX: 65 280 0080
HONG KONG
(China/Hong Kong)
19/F, China United Plaza
1008 Tai Nan West Street
Cheung Sha Wan, Kowloon
Hong Kong, China
TEL: 852 2788 6588
FAX: 852 2776 1055
DISTRIBUTOR
