T3/DS3/E3/STS-1 TRANSFORMERS
Eight Transformers Designed for
T3, DS3, E3 and STS-1 Interface
Eight transformers in a surface mount package
Models matched to leading transceiver ICs
Return loss meets requirements of G.703
Recognized by UL1950 (some parts pending approval)
Isolation voltage: 1500Vrms
Electrical Specifications @ 25°C
RoHS-5
Compliant PN#
T3048
T3049
TX3047*
TX3045*
RoHS-6
Compliant PN#
T3048NL
T3049NL
TX3047NL*
TX3045NL*
Turns Ratio
(Pri:Sec ±2%)
1:1
1:2
1:1
1:1 & 1:2
OCL Primary
@ 25°C
(µH MIN)
40
19
100
100 & 40
L
L
(µH MAX)
.150
.150
.150
.120
C
W/W
(pF MAX)
10
10
10
10
Isolation Voltage
(Vrms MIN)
1500
1500
1500
1500
Package/
Schematic
YB/1
YB/1
YB/1
YB/1
Primary
Pins
1-2, 3-4, 5-6, 7-8
9-10, 11-12, 13-14, 15-16
1-2, 3-4, 5-6, 7-8
9-10, 11-12, 13-14, 15-16
1-2, 3-4, 5-6, 7-8
9-10, 11-12, 13-14, 15-16
1-2, 5-6, 9-10, 13-14 &
3-4, 7-8, 11-12, 15-16
*NOTE:
Operating Temperature Range: -40°C to +85°C.
For Tape & Reel packaging, add a “T” suffix to the part number when ordering (e.g. T3048 becomes T3048T, and T3048NL becomes T3048NLT).
Mechanical
YB
1.000 MAX
25,40
.050
15X 1,27
.425 ± .005
10,80
0,13
Schematic
32
31 30
29 28
27 26
25 24
23 22
21 20
19 18
17
1
1
2
3
4 5
6 7
8
9
10 11
12 13
14 15
16
Date Code Country of Origin U.S. Pat. 5015981
Part Number
32X .018
0,46
.750
19,05
.310
7,87
2 X 10°
.295 MAX
7,49
32X .100
2,54
.780
19,81
.030
32X 0,76
.280
7,11
4 X 3°
.004/0,10
32 SURFACES
0° 8°
Weight
. . . . . . . . . . . . . .2.7 grams
Tape & Reel
. . . . . . . . . . . .200/reel
Tube
. . . . . . . . . . . . . . . . . .20/tube
.465
11,81
.050 TYP
1,27
SUGGESTED PAD LAYOUT
.035
32X 0,89
2 X 15°
.115
2,92
Dimensions:
Inches
mm
Unless otherwise specified,
all tolerances are ± .010
0,25
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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.
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T663.B (9/06)
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