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TDK delivers global EMC solutions

EMC (Electromagnetic Compatibility) refers to the ability of electronic devices and systems to operate normally in an electromagnetic environment without interfering with other devices. This means that the electromagnetic energy emitted by electronic devices does not adversely affect other devices, nor is it affected by external electromagnetic energy.<br>
In the modern technological society, many electronic devices are used at the same time: smartphones, computers, communication devices, medical equipment, cars, etc. EMC is essential for these devices to function efficiently and safely without adversely affecting each other.<br>
Ensuring EMC includes minimizing electromagnetic interference (EMI) and managing electromagnetic susceptibility (EMS). To achieve this, measures such as shielding and filtering, proper design, and conformance testing are required. By taking these measures, you can increase the reliability of your products, meet regulatory standards, and improve your product's market competitiveness.<br>
EMC is an important factor to consider from the very beginning of product development, and it is becoming increasingly important as technology innovates.
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TDK provides comprehensive support for EMC

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In electronic devices, there is a need for EMI (Electro Magnetic Interference) countermeasures to prevent themselves from becoming a source of noise, and EMS (Electro Magnetic Susceptibility) countermeasures to prevent them from being affected by external noise. This is called EMC (Electromagnetic Compatibility), which is translated as "electromagnetic compatibility" or "electromagnetic compatibility". It is important to ensure that both emissions and immunity are addressed, that is, both generated and intrusive noise.

TDK provides comprehensive support for EMC through Ferrite. As vehicles become more electrified, many products are becoming more and more prone to noise issues. EMC is regulated by international standards, and electronic devices on the market must meet those standards. EMC is required to measure, evaluate, and take measures to meet standards.

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Total_support_for_EMC


Fig.1 : Total support for EMC

TDK has a radio wave absorption band using ferrite technology, and can provide anechoic chamber and EMC measurement technology. We also have EMC certification sites in Ichikawa City, Chiba Prefecture and Lebenburg, Germany, and can provide measurements in accordance with international standards. If you have a problem with EMC, we will recommend the most suitable parts through technical support.

EMC has a long track record and provides comprehensive support for EMC with measurement equipment, certifications, technical support, and mitigation parts.

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Anechoic chambers and measuring systems

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TDK offers world-leading technologies for anechoic chamber design and measurement systems. An anechoic chamber is an important facility for evaluating the performance of wireless communication equipment and electronic equipment, eliminating external radio interference and providing a precise measurement environment.

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Anechoic chambers and radio wave absorbers

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Anechoic_chambers_and_radio_wave_absorbers


Fig. 2 : Anechoic chambers and radio wave absorbers

We provide a measurement environment custom-designed according to the measurement object, such as an anechoic chamber that meets various EMC standards for vehicles, in-vehicles, and consumer products, a six-sided anechoic chamber for microwave millimeter-wave evaluation, and a reverberation chamber that can be evaluated in vehicles and vehicles.
We also provide environmentally friendly products such as radio wave absorbers using biomass materials.
Catalog | Anechoic Chambers and Radio Wave Absorbers | TDK Product Center

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EMC Test System

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EMC_Test_System


Fig.3 :  EMC Test System

We provide automatic measurement system software for EMC measurement, antenna evaluation, etc.
We also have a shield box that can perform simple EMC countermeasures and a measurement antenna for each band that can be used in an anechoic chamber.
Catalog | Anechoic Chambers and Radio Wave Absorbers - EMC Measurement Systems | TDK Product Center

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EMC Certifications

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TDK EMC Centers are internationally recognized laboratories that have been audited based on the international standard for operation and technology (ISO/IEC 17025) and have been accredited by Japan VLAC. You can use the DoC (Declaration of Conformity) system based on FCC regulations, which can significantly shorten the certification process for your products and devices. In addition, we are certified for EMC testing of automotive equipment and are a registered testing laboratory of GM FORD.
EMC Testing | TDK

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EMC_Certifications
Fig.4 : EMC Certifications
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EMC Measurement Services

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We are equipped with various equipment necessary for EMC testing, including a 10-meter anechoic chamber that can perform EMI measurement and EMS testing of large-scale equipment and equipment, and we can provide a variety of measurement evaluations.

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10-meter anechoic chamber

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10-meter_anechoic_chamber


Fig.5 : 10-meter anechoic chamber

It is equipped with a large turntable with a diameter of 6 m and a load capacity of 4 tons, and can supply up to 24 kVA. In addition, a lifter with a weight resistance of 120 kg makes it possible to install an opposing machine in a turntable pit with a depth of 2.8 m. Measurement and testing of large equipment and equipment such as automobiles, robots, and machine tools can be performed in one place.

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3M anechoic chamber

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3-meter_anechoic_chamber


Fig.6 : 3-meter anechoic chamber

It is an anechoic chamber that has obtained laboratory accreditation for EMC measurement of in-vehicle equipment. For EMC measurement of in-vehicle equipment, special measuring desks (with ground plates) and amplifiers for large-capacity radiated EMS (1000W output) are optimally arranged, which are different from consumer devices.

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Reverberation Chamber (TDK's free-standing stirrer)

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Reverberation_Chamber


Fig.7 : Reverberation Chamber

In the electric field emitted inside the shielded room, a stirrer (stirrer) is used to reflect it on the interior surface of the shielded room to create an isotropic homogeneous electric field field, and it is possible to conduct immunity tests that simulate the actual indoor and outdoor environments.

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* Please refer to the WEB page for supported standards.
Test Facilities and Test Contents | TDK 

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EMC Countermeasure Support

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EMI measurement or EMS testing results indicate that countermeasures are required, but specific methods are not known, experienced EMC countermeasure engineers will provide on-the-spot support for countermeasures. TDK's extensive range of noise suppression components, such as evaluation and analysis tools and various noise filters, is always on hand, enabling effective responses in a short period of time. (EMC countermeasures can be likened to medical care.) 

EMC_Countermeasure_Support
Fig.8 : EMC Countermeasure Support

 

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EMC Support, Measurement, and Certification Service Locations

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Anechoic chambers and shielded rooms for evaluation are installed at major bases around the world Japan (Akita), China (Shanghai), Germany (Regensburg), the United States (Austin), Taiwan (Taoyuan). We provide noise suppression support at nearby bases. In addition, there are certification sites in Japan (Ichikawa) and Germany (Regensburg), and certification reports can be created. Upon request, we can propose EMC filters and support them at the design stage. In addition, we will provide the following countermeasure assistance in the actual set.
On-site EMC noise suppression support
Outsourced EMC measurement and noise suppression support
On-site EMC noise suppression support at customer facilities

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EMC_Support,_Measurement,_and_Certification_Service_Locations
Fig.9 :  EMC Support, Measurement, and Certification Service Locations
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EMC Components

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Electromagnetic Compatibility (EMC) components are an essential part of the proper operation of electronic devices in the electromagnetic environment. These components play a role in suppressing electromagnetic noise emitted by electronic devices and preventing electromagnetic interference from the outside.
As with medicine, it is effective when the appropriate parts are used for the symptom (cause).

 

Types of EMC Components

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Filters:
Filters are used to remove noise in a specific frequency band. There are Power Line Common Mode Chokes/Filters, Signal Line Common Mode Chokes/Filters, etc., which are important to prevent noise propagation. Signal line filters also improve signal quality

Ferrite cores:
A ferrite core is a component that is attached to a cable or wire to absorb high-frequency noise. This suppresses noise emissions and improves the EMC performance of the equipment.

Shielding Materials:
Shielding materials are used to block electromagnetic waves from inside and outside the equipment. This will prevent equipment malfunctions.

Capacitors:
It is used to bypass high-frequency noise. Capacitors remove noise in a specific frequency band and preserve the quality of the signal. In the power supply line, it absorbs instantaneous current fluctuations and prevents them from affecting other circuits. This increases the stability of the circuit.

Inductors:
Inductors have the characteristic of exhibiting resistance to changes in current and are used for noise filtering. It is especially important for suppressing high-frequency noise. It removes noise in power supply and signal lines and smooths the current. This assists in the stable operation of the equipment

Varistors:
A varistor is a component used to protect a circuit from overvoltage. When the voltage exceeds a certain threshold, the varistor sharply reduces the resistance and absorbs the overvoltage. It protects electronics from overvoltages such as lightning surges and switching surges in power lines.

Arresters:
An arrester is a component that is mainly used to protect against high-voltage transients. Protects equipment from lightning surges and other overvoltage events. It provides protection against lightning and other high-voltage surges on power lines and communication lines. In particular, it is used in equipment installed outdoors and in long-distance communication lines.

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TDK's EMC Products and Technologies

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EMC Components:
We provide ferrite cores, filters, shielding materials, and other components to reduce electromagnetic interference.
These products contribute to noise suppression and improved signal quality.

Noise Suppression Solutions:
Developed filtering technology to reduce noise in power supply lines and signal lines.
It improves the performance of electronic devices by effectively eliminating high-frequency noise.

Design Support:
Provides EMC design assistance and encourages EMC implementation from the earliest stages of product development.
Through simulation tools and technical consulting, we support optimal design.

Conformance Testing:
We provide testing services to meet EMC standards and help ensure that your products meet the standards required to bring them to market.
We work with testing laboratories to perform tests quickly and accurately

Darkroom and system:
A dedicated darkroom for EMC testing is installed to provide a precise measurement environment.
Advanced measurement systems are utilized to efficiently evaluate and combat electromagnetic interference.

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Recognizing the importance of EMC, TDK is committed to improving the reliability and performance of electronic devices through innovative technologies and products. In this way, we are able to meet the needs of our customers and support technological innovation.

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For inquiries related to our products or sales, please contact us by filling the following Contact Form.

Contact

Please click here for information on the list of distributors.

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Product Portal

 

EMC Components

Electronic devices generate electromagnetic interferences, which can affect the proper functioning of electronic devices and systems. As the need to ensure EMC (electromagnetic compatibility) continues to grow in importance, TDK has developed a wide range of products designed to protect electrical and electronic equipment against EMI (electromagnetic interference). The deep portfolio includes electronic components ranging from miniature chip beads and 3-terminal filters for mobile devices, common-mode filters for computer networks and automotive bus systems, to EMI-filters for AC or DC power lines, LCL filters and reactors for industrial electronics installations. Our common-mode filters, for example, are suitable for high-speed differential signal interfaces in IT and communications devices such as USB 3.0, DVI, HDMI, and Serial-ATA. The common-mode filters for automotive bus systems such as CAN, FlexRay and Ethernet are designed especially for fully automated manufacturing processes. To meet the need for high-density packaging, we constantly strive to make each product smaller and thinner by putting our advanced material and multilayer processing technologies to full use. The extensive line of EMI filters for AC and DC power lines ranges from components with miniature footprints to those that can support high currents of up to 2500 A.

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Anechoic Chambers and Radio Wave Absorbers

We create anechoic chambers to meet your requirements, designing for the desired functions and performance, and ensuring compliance with specific standards. We welcome your inquiries concerning repairs or maintaining your existing anechoic chambers. In addition, we also manufacture and sell an assortment of radio wave absorbers for creating a comfortable electromagnetic environment where high-frequency electromagnetic waves are used such as wireless LAN and ITS. TDK's radio wave absorption material is effective in improving all types of electromagnetic environments and in protecting human bodies from electromagnetic waves.

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