Data Sheet

Dimensions: [mm]
0,3 u 0,05
17,53 ±0,25
4,5 max.
24
1
12
13
14,6
u
0,25
detail A
0,8 u 0,05
1,1
1,27
A
Scale - 2:1
Pin 1 •
Marking 749020310
Product Marking:
Recommended Land Pattern: [mm]
1,9
16,51
1,27
0,76
1
12
24
13
no vias or traces underneath the component
Scale - 2:1
Schematic:
1:1
2
1
3
5
4
6
8
7
9
11
10
12 13
15
14
16
18
17
19
21
20
22
24
23D1+
CD1
D1-
D2+
CD2
D2-
D3+
CD3
D3-
D4+
CD4
D4-
X1+
CX1
X1-
X2+
CX2
X2-
X3+
CX3
X3-
X4+
CX4
X4-
1:1
1:1
1:1
Properties Test conditions Value Unit Tol.
Inductance 100 kHz/ 100 mV @ 8 mA L 300 µH min.
Insulation Test Voltage 1 min. U
T
1500 V (RMS)
Turns Ratio n 1:1
Insertion Loss 500 kHz - 100 MHz IL -1.1 dB max.
Return Loss 500 kHz - 30 MHz RL -20 dB min.
Return Loss 30-60 MHz RL -18 dB min.
Return Loss 60-80 MHz RL -14 dB min.
Return Loss 80-100 MHz RL -12 dB min.
Crosstalk 500 kHz - 100 MHz CT -38 dB min.
Common Mode
Rejection Ratio
500 kHz - 100 MHz CMRR -33 dB min.
Electrical Properties:
It is recommended that the temperature of the component does not exceed +85°C under worst
case conditions
Operating Temperature -40 °C up to +85 °C
Storage Temperature (in original
packaging)
-20 °C up to +60 °C
Test conditions of Electrical Properties: +20°C, 33% RH if not specified differently
General Information:
Würth Elektronik eiSos GmbH & Co. KG
EMC & Inductive Solutions
Max-Eyth-Str. 1
74638 Waldenburg
Germany
Tel. [phone] - 0
www.we-online.com
[e-mail]
CREATED CHECKED GENERAL TOLERANCE PROJECTION
METHOD
KaS JaB DIN ISO 2768-1m
DESCRIPTION
WE-LAN AQ 10/100/1000 Base-T
SMD Transformer 1 Port
ORDER CODE
749020310
REVISION STATUS DATE (YYYY-MM-DD) BUSINESS UNIT PAGE
001.000 Valid 2017-11-01 eiSos 1/7
This electronic component has been designed and developed for usage in general electronic equipment only. This product is not authorized for use in equipment where a higher safety standard and reliability standard is especially required or where a failure of the product is reasonably expected to cause severe personal injury or death, unless the parties have executed an agreement specifically governing such use. Moreover Würth Elektronik eiSos GmbH
& Co KG products are neither designed nor intended for use in areas such as military, aerospace, aviation, nuclear control, submarine, transportation (automotive control, train control, ship control), transportation signal, disaster prevention, medical, public information network etc.. Würth Elektronik eiSos GmbH & Co KG must be informed about the intent of such usage before the design-in stage. In addition, sufficient reliability evaluation checks for safety
must be performed on every electronic component which is used in electrical circuits that require high safety and reliability functions or performance.