EMC-Labs Waldenburg & Freiham

General information about the EMC laboratories

As a specialist in the field of passive components with years of experience in training and supporting customers in the area of electromagnetic compatibility, Würth Elektronik eiSos GmbH & Co. KG also has well equipped EMC laboratories at our Waldenburg and Munich locations in Germany.

WE will support you in the troubleshooting, noise suppression, optimization and the selection of the relevant product standards along with the general questions about EMC.

WE offer EMC lab service to our customers to perform EMC measurements during development/
precompliance testing.

Talk with us about EMC!

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Product development process

It is the responsibility of the manufacturer to declare the conformity of a product with the relevant European directives and represent it to the consumer by the CE mark.

For example, a product within the scope of the EMCD 2014/30/EU should comply with the essential requirements defined in the directive. EMC behaviour of the product should be taken into account during the early stages of the product development. EMC tests during the development stage help identify EMC problems earlier which leads to the reduction of overall development costs.

Consequently, appropriate measures can be taken, and solutions can be implemented cost-effectively avoiding significant delays in the project plan. Product optimizations can be carried out directly in the EMC lab at the circuit and system level using our large portfolio of EMC components. WE also provide support
with advice on circuit and layout redesign, component placement or change in concept of the device under test.

Optimization of the radiated emission of a DUT

Orange Curve: Emission of the DUT before the optimization
Green Curve: Emission of the DUT after the optimization in the lab

Optimierungsbeispiel_gestrahlte-Stoerfeldstaerke-Pruefling

Equipment of the EMC laboratory

Radiated emission and immunity tests

Reduced distance between DUT and Antenna: 2 m

Radiated Emissions

30 MHz to 6 GHz
Measuring receiver Rohde & Schwarz ESW (8 GHz) with FFT-Analysis and Real-Time Spectrum Analysis
Log periodic antenna 30 MHz to 6 GHz

Radiated Immunity

80 MHz to 6 GHz
Radiated immunity according to IEC 61000-4-3 with Field strengths up to 20 V/m

Adapted Automotive Monopole measurement

Radiated emissions measurement from 150 kHz to 30 MHz
Structure of the Anechoic chamber suitable for CISPR 25 testing

DUT specifications

Maximum weight 500 kg
Device must fit on a Euro pallet and should have maximum height of 1.5 m

Conducted emission and immunity tests

Conducted emission

9 kHz to 30 MHz
Conducted emissions as per CISPR 16-2-1
Measuring receiver Rohde & Schwarz ESW (8 GHz) with FFT-Analysis and Real-Time Spectrum Analysis

Conducted Immunity

Immunity test as per IEC 61000-4-6; frequency range from 150 kHz to 300 MHz, Coupling via CDNs and EM clamp
Immunity test as per IEC 61000-4-16 from 15 Hz to 150 kHz
Immunity test as per IEC 61000-4-19 upon request

DUT specifications

Maximum weight 500 kg
Device must fit on a Euro pallet and should have maximum height of 1.5 m

Immunity testing against transient disturbances

Burst- und Surge-Prüfung

Test generator emtest UCS 500N
IEC 61000-4-4; Burst up to 5.5 kV
IEC 61000-4-5; Surge up to 5k V
Surge and Burst coupling on AC and DC ports
Burst coupling via Capacitive Coupling Clamp
Surge coupling via CDNs on signal lines

ESD test

IEC 61000-4-2
ESD up to 30 kV
R/C-Network: 150 pF / 330 Ω; 150 pF / 2000 Ω

Testing low frequency disturbances

Voltage dips and Interruptions as per IEC 61000-4-11
Power frequency magnetic field as per IEC 61000-4-8 up to 1000 A/m

Radiated Emission and Immunity tests

Fully Anechoic Chamber: 3 m

Radiated Emission

30 MHz to 26 GHz
Measuring receiver Rohde & Schwarz ESW (26 GHz) with FFT-Analysis and Real-Time Spectrum Analysis
Antenna Rohde & Schwarz Ultralog HL562e 30 MHz to 6 GHz
Antenna Rohde & Schwarz Log-periodic HL050 850 MHz to 26.5 GHz
Turntable (0 – 360°), Continuous- and Stepmode

Radiated Immunity

80 MHz to 6 GHz
Radiated Immunity test according to IEC 61000-4-3 with Field strengths up to 20 V/m
80 MHz – 2.7 GHz, 20V/m
2.7 GHz – 6 GHz, 10V/m

DUT specifications

Maximum weight 500 kg
Device must fit on a Euro pallet and should have maximum height of 1.5 m

Conducted emission and immunity tests

Conducted emission

Conducted emissions as per CISPR 16-2-1
Frequency range 9 kHz to 30 MHz

Conducted Immunity

Immunity test as per IEC 61000-4-6
Frequency range from 150 kHz to 250 MHz
Coupling via CDNs and EM clamp

DUT specifications

Maximum weight 500 kg
Device must fit on a Euro pallet and should have maximum height of 1.5 m

Immunity testing against transient disturbances

Burst and Surge test

Test generator AMETEK NX5
IEC 61000-4-4; Burst up to 5.5 kV
IEC 61000-4-5; Surge up to 5 kV
Surge and Burst coupling on AC and DC ports
Burst coupling via Capacitive Coupling Clamp

ESD test

ESD generator AMETEK NSG435
IEC 61000-4-2
ESD up to 16.5 kV
R/C-Network: 150 pF / 330 Ω
Air-discharge: 200 V to 16.5 kV
Contact-discharge: 200 V to 9 kV

Troubleshooting in the EMC Lab

We offer support in troubleshooting your assembly on site. The noise sources are identified quickly and effectively using the latest measurement technology and proven methodology.

Bild 1 EMV Labor Galery — Signal analysis using Real-Time Spectrum.

EMV Labor Bild 2 Galery — Noise source detection with Near Field probes.

EMV Labor Bild 3 Galery — Shielding optimization of an enclosure using adhesive Copper tape.

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