EMI Filter

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What is EMI Filter?

EMI Filter is the abbreviation of Electromagnetic Interference filter. An EMI Filter is a passive electronic device which is used to restrain conducted interferences which are found on a signal or power line. Moreover, EMI filters are unacceptable electromagnetic emissions, natural or man-made, which result in the degradation or malfunction of electronic or electrical equipment. An EMI Filter works by presenting a significantly higher resistance to higher frequency content. That is to say, the low pass design of the EMI Filter will result in the restriction of the flow of high frequency signals, effectively shorting it to ground. The final result of the EMI Filter is to reduce and attenuate the unwanted signal strength, thereby having a minimal effect on other components or devices.

RFI filter and EMI filter are the major products in HAL business. For this reason, HAL makes good use of up-to-date technology to develop the efficiency of RFI / EMI filter. Of course, HAL will always assure customers of all EMI filters that are manufactured with high quality materials. Besides, we keeps following the cutting edge techniques of efficient EMI filter production, and take it for the first priority to serve customers. Accordingly, HAL has earned excellent reputation by selling EMI filters from customers over the world.

The function of EMI filter is to minimize or eliminate signals that are generated by signals or data lines that may interfere with radio frequencies. As a consequence, HAL provides high quality RFI / EMI filters for those electric devices which need EMI filtering to decrease the interference of radio frequencies. As HAL has devoted itself to manufacturing and developing EMI filter solution for more than 10 years, customers may place complete reliance on our products, EMI filter.

Wanna know more about EMI filters? Please click EMI filters below.

The Photo of EMI filter for IEC Inlet The Photo of Sigle phase EMI filter The Photo of Power Entry Modules

EMI Filter - IEC Inlet

EMI Filter - Single Phase

Power Entry Modules


The Photo of EMI filters for home appliances. The Photo of Three Phase EMI filters The Photo of special design EMI filter

EMI Filter - Home Appliance

EMI Filter - Three Phase

EMI Filter - Special Design

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