EMI/EMC Filters and EMI Solutions

6 February 2025 by
EMI/EMC Filters and EMI Solutions
ISATRONICK BV, Niels Anthonissen


Modern electronic and electrical equipment and power supplies will generate electromagnetic noise during operation, which is called electromagnetic interference (EMI). 

It can be transmitted through radiation or conduction, affecting the electronic equipment itself or surrounding sensitive electronic equipment, causing damage or disasters.


When engineers design electronic equipment, in order to avoid electromagnetic interference, EMI power line filters become an indispensable solution for engineers. 

EMI power line filters can effectively block or reduce the propagation of interference signals, thereby ensuring the safe and stable operation of electronic equipment.
At Isatronick, together with our partner, we deliver high-quality EMI power line filters, aiming to provide safe and reliable EMI solutions for various industries. Help your electronic equipment comply with safety regulations and have strong market competitiveness.

Our filter products include single phase filters, three phase filters, IEC filters, PCB filters, DC filters and feedthrough filters. We can provide standard models and customized EMI filter services.

Single Phase Single Pole Filter 

It usually consists of an inductor and a capacitor, with a filtering level to filter out noise and interference signals within a specific frequency band. It is widely used in single-phase powered electronic devices such as household appliances, industrial equipment and medical equipment. Rated current: 1A-200A, rated voltage: 115-250VAC, operating frequency: 50/60Hz. Products can be customized according to customer needs. 

Single Phase Bipolar Filter 

Single Phase Bipolar FilterIt has two filtering levels, used to filter out differential mode and common mode interference respectively. It is widely used in single-phase powered electronic devices such as household appliances, industrial equipment, communication equipment and medical equipment. Rated current: 1A-50A, rated voltage: 115-250VAC, operating frequency: 50/60Hz. A variety of installation options are available. Products can be customized according to customer needs.

Three Phase Filter 

Three Phase EMI FilterThree-phase EMI filters are usually composed of multiple inductors, capacitors and resistors, which can provide effective filtering effects in a wide frequency range and effectively improve the stability and reliability of equipment. They are widely used in three-phase power systems such as industrial automation, communication equipment, power electronic equipment, and medical equipment. Rated current: 6A-1000A, rated voltage: 380/440VAC, can be customized according to customer needs. 

IEC Inlet Filter 

IEC Inlet FilterIEC filters are usually composed of inductors, capacitors and resistors, and can provide effective suppression between conducted interference (such as common mode and differential mode interference) and radiated interference. They are widely used in office equipment, fitness equipment, home appliances and game consoles. Rated current: 1A-30A, rated voltage: 115/250VAC, with fuse and switch versions available. Can be customized according to customer needs.

PCB EMI Filter

PCB EMI FilterPCB EMI filter is an electromagnetic interference (EMI) suppression component integrated on a printed circuit board (PCB) to reduce or eliminate electromagnetic interference generated or conducted in a circuit. EMI filters are usually composed of passive components such as inductors, capacitors, and resistors to protect the normal operation of the circuit by suppressing high-frequency noise. They are widely used in modern electronic devices to meet strict electromagnetic compatibility requirements and ensure the reliability and stability of the equipment.

DC EMI Filter

DC EMI FilterDC EMI filter is an electronic component specially used to reduce or eliminate electromagnetic interference (EMI) in DC circuits. It blocks or attenuates unwanted high-frequency noise signals to ensure smooth output of DC power supply, thereby protecting sensitive electronic equipment and systems from electromagnetic interference. Rated current: 1A-50A, rated voltage: 12-100VDC, multiple installation methods are available, and customization is supported according to needs.

Feedthrough EMI Filter

Feedthrough filters can effectively filter out high-frequency interference signals in the conduction path, protect sensitive electronic equipment from interference, and reduce the electromagnetic radiation of the equipment to the external environment. It has efficient filtering performance and low insertion loss, can provide effective suppression capabilities in a wide frequency band, and is suitable for various harsh electromagnetic environments. Rated current: 1A-500A, rated voltage: 80-2500VDC/VAC, support customization according to demand.


If you have more questions or an enquiry, don't hesitate to contact us!