10BASE-T QUAD SMT TRANSFORMER MODULES
FEATURES
Family of parts − common footprint and pinout with a choice of
filtering for customized EMI performance
IC grade transfer-molded package withstands235°C peak
temperature performance
Electrical Specifications @ 25°C — Operating Temperature 0°C to 70°C
Transformer
Turns Ratio
(±2%)
Part
Number
Sine Wave Interwinding
Inductance Capacitance
OCL
CWW
(µ H MIN)
(pF MAX)
Leakage
Inductance
LL
(µ Η MAX)
Common Mode Rejection
TX
(dB MIN)
Return Loss
5 to 10 MHz
(dB MIN)
ST-88049
1CT:1CT
150
10
0.30
-20
-15
5
MHz
-60
ST-88050
ST-88062
1CT:1CT
1CT: 2CT
150
150
10
10
0.30
0.30
-20
-20
-15
-15
-60
-60
-50
-50
-35
-30
-25
-25
-20
-20
1500
1500
ST-88065
1CT: 2CT
150
10
0.30
-20
-15
-60
-50
-30
-20
-15
1500
Transmit
100 Ω
98 ±13 Ω
10
MHz
-50
50
MHz
-35
100
MHz
-25
200
MHz
-20
Hipot
(VRMS
MIN)
1500
Mechanical
.480
12,19
1.125 MAX
28,58
Sumlink
.640 MAX
16,26
.004/0,10
.480
12,19
40X .090
2,29
ST-XXXXX
40X .045
1,14
(DATE CODE)
40X .018
0,46
.050
1,27
19X .050
1,27
.950
24,13
40X .030
0,77
19 X .050 (=.950)
19 X 1,27 (= 24,13)
.230 MAX
5,84
0° – 8°
.010 ± .005
0,25 ± 0,13
40X .024
0,61
40 SURFACES
Inches
mm
Unless otherwise specified, all tolerances are ± .010
0,25
Dimensions:
SUGGESTED PAD LAYOUT
Schematics
ST-88049
40
38
39
ST-88050
37 36
1: 1
34
35
33
32 31 30
1: 1
2
3
4
5
27
26 25
6
TX
8
7
RX
24
39 38
10 11
TX
12
RX
13
37 36 35 34
33
32
31 30
1: 1
1: 2
2
RX
29
14 15
TX
4
TX
5
6
7
TX
28
27 26
16
17
18
RX
9
10 11
RX
23 22
21
1: 1
1: 2
8
25 24
1: 1
1: 2
3
40
39
38 3 7 36
35
34
1: 1
1C T: 1C T
30
33 32 31
1C T: 1C T
29
1: 1
28 27 26
1C T: 1C T
24
25
1: 1
23 22 21
1C T: 1C T
19 20
TX
3
2
1
RX
4 5
TX
6
8
7
RX
9 10
TX
11
13 14 15 16
TX
12
RX
18 19 20
TX
17
RX
ST-88065
1: 1
1
21
1C T: 1C T
ST-88062
40
22
1: 1
1C T: 1C T
9
23
1: 1
1C T: 1C T
RX
28
1: 1
1C T: 1C T
1
29
12
RX
13
40
39
38
37 36 35 34
1: 2
1: 2
1: 1
33
32
31
30
29
1: 1
1: 1
28
27 26 25 24
1: 2
23 22
21
1: 1
1: 2
1: 2
14 15
TX
Sumlink Technologies Co., Ltd
16 17 18 19
20
TX
RX
1
2
RX
3
4 5 6 7
TX
TEL:86-755-83274922, 83645328
8
TX
9
10
RX
11
12
RX
FAX:86-755-83274735
13
14 15 16 17
TX
18 19
TX
RX
20
www.Sumlink.com.cn