Data Sheet

Dimensions: [mm]
0,3 ±0,1
12,7 u 0,25
6,35 max
8,8
u
0,25
1
8
9
16
1,2 ±0,05
9,4 ±0,25
1,55 max
1,27 ±0,05
Scale - 2,5:1
Pin 1 •
Marking
749010012A
YYWW
Product Marking:
Recommended Land Pattern: [mm]
0,76
1,7
8,8
1,27
8,89
16
9
8
1
no vias or traces underneath the component
Scale - 2,5:1
Schematic:
1
2
3
6
7
8 9
10
11
14
15
16
RD+
CRD
RD-
TD+
CTD
TD-
RX+
CRX
RX-
TX+
CTX
TX-
1:1
1:1
Properties Test conditions Value Unit Tol.
Inductance 100 kHz/ 100 mV @ 8 mA L 350 µH min.
DC Resistance 100 kHz/ 100 mV R
DC
1200 mΩ max.
Insertion Loss 1-100 MHz IL -1.1 dB max.
Return Loss 30 MHz @ 100 Ω RL -18 dB min.
Return Loss 60 MHz @ 100 Ω RL -14 dB min.
Return Loss 80 MHz @ 100 Ω RL -12 dB min.
Return Loss 100 MHz @ 100 Ω RL -10 dB min.
Differential to Common
Mode Rejection Ratio
30 MHz DCMR -40 dB min.
Differential to Common
Mode Rejection Ratio
60 MHz DCMR -35 dB min.
Differential to Common
Mode Rejection Ratio
100 MHz DCMR -30 dB min.
Crosstalk 1-60 MHz CT -35 dB min.
Crosstalk 60-100 MHz CT -30 dB min.
Insulation Test Voltage U
T
1500 V (RMS)
Electrical Properties:
It is recommended that the temperature of the component does not exceed +70°C under worst
case conditions
Operating Temperature 70 °C
Storage Conditions (in original
packaging)
< 40 °C ; < 75 % RH
Moisture Sensitive Level (MSL) 1
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
FBo JaB DIN ISO 2768-1m
DESCRIPTION
WE-LAN 10/100 Base-T SMT
Transformer
ORDER CODE
749010012A
REVISION STATUS DATE (YYYY-MM-DD) BUSINESS UNIT PAGE
004.000 Draft 2018-06-25 eiSos 1/6
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.