WE-PLC Transformer

Characteristics

Insulation test voltage of 4500 V_AC / 1 min.
Operating temperature: -40 °C to 125 °C
Different transmission ratios

Applications

Wallbox / public EV charging systems
Frequency range from 500 kHz to 30 MHz
Industrial signal isolation

Products

Order Code	Datasheet	Downloads	Status	Ports	Operating Temperature	V_T (V (AC))	Mount	L (µH)	n	Samples
74941502	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-PLC (rev24a).IntLib \| 135 KB CDS Cadence_WE-PLC (rev24a).zip \| 427 KB EAG Eagle_WE-PLC (rev24a).lbr \| 18.1 KB KIC KiCad_WE-PLC (rev25a).zip \| 192.3 KB CAD files ZIP 3D 3D_WE-PLC_74941502 (rev1).pdf \| 171.7 KB IGS IGS_WE-PLC_74941502 (rev1).igs \| 1.9 MB STP STP_WE-PLC_74941502 (rev1).stp \| 574 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	1	-40 °C up to +125 °C	4500	SMT	20	1:1:1
74941503	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-PLC (rev24a).IntLib \| 135 KB CDS Cadence_WE-PLC (rev24a).zip \| 427 KB EAG Eagle_WE-PLC (rev24a).lbr \| 18.1 KB KIC KiCad_WE-PLC (rev25a).zip \| 192.3 KB CAD files ZIP 3D 3D_WE-PLC_74941503 (rev1).pdf \| 175.6 KB IGS IGS_WE-PLC_74941503 (rev1).igs \| 1.9 MB STP STP_WE-PLC_74941503 (rev1).stp \| 580.3 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	1	-40 °C up to +125 °C	4500	SMT	20	1:4:3

Order Code	Datasheet
74941502	SPEC
74941503	SPEC

Samples

Order Code	Datasheet	Downloads	Status	Ports	Operating Temperature	V_T (V (AC))	Mount	L (µH)	n	Samples

Power Line Communication (PLC)

Power Line Communication (PLC) is a technology that enables the transmission of data and information over electrical power lines.

The existing power grid can be used for communication between the various consumers in applications such as the smart grid, smart metering and industrial and home control systems.

For electric vehicle charging, PLC is part of the general trend to make charging more efficient and convenient, and to adapt it to the needs of users and the grid. PLC is used to transmit data and control signals that allow intelligent charging, monitoring and management of the charging process. The WE-PLC transformer is suitable for AC and DC charging stations according to ISO 15118-3.

Why is a transformer needed for PLC?

Galvanic isolation is required between the supply network and the PLC modem to protect the low-voltage range in the event of a short circuit. In addition, impedance matching must take place to minimize signal reflection. This can be achieved using a transformer.

With the WE-PLC transformer, the PLC system is safely protected and a high signal quality is achieved at the same time.

Turns Ratio

Depending on the application, transformers with different turns ratios are required. A turns ratio of 1:1:1 is used for the PLC interface in e-mobility applications on the charging station side (EVSE). For AC grid communication interfaces, such as in smart grid, IoT or smart home applications, a transformer with a turns ratio of 1:4:3, for example, couples the modem signal to the grid.

More Components for PLC and EV-Charging

WCAP-FTXH THB X2-Capacitors

Self-healing properties
For harsh environmental conditions (THB: Temperature Humidity Bias)
THB Test: 1000 h @ 85°C @ 85% RH with rated voltage applied
Safety class: X2
Release for series application required
Capacitance range: 33 nF ‒ 10 µF
Voltage range (V_R): 310 V_AC

WE-SL2 SMT Common Mode Line Filter

Common mode choke
Ring core with the core materials of NiZn and MnZn
Operating temperature: –40 °C to +125 °C
Operating voltage: 80 V_DC (42 V_AC)
Inductance: 10 to 20000 µH
Rated current: 200 to 1600 mA
R_{DC max.}: 0.08 to 2.6 Ω

WE-TVS Diode - Standard Series

Channel operating voltage V_{Ch max.} from 3.3 up to 24 V
Input capacitance C_{Ch typ.} from 12 pF up to 1.65 nF
Fast turn-on
Low clamping voltage and high ESD withstand voltage
Uni- or bidirectional protection
Small package

WE-TVSP Power TVS Diode

Operating voltage: 5 - 440 V_DC
Peak pulse current: 0.6 to 326.1 A
Glass passivated juction
Excellent clamping capability
Fast response time
Safety certification UL 497B, E478010
Low profile package

From mobile charging cables (ICCPD) to wallboxes for the home and public charging stations (HPC) - Würth Elektronik develops and manufactures electronic and electromechanical components for a wide range of these applications. Take a look at our industry guide to find out more about available components for EV charging.

To the Applications- and Industries Guide