All About EMI Filters

What is EMI?


EMI stands for Electromagnetic interference (EMI) and the main types of EMI are conducted EMI and radiated EMI. Conducted EMI goes through conductors, for example, wires or electrical cables, whereas radiated EMI goes through the air and doesn't require a transmitter. Both EMIs can affect the presentation of electronic gadgets through hindrance, debasement, breaking down or framework disappointment.

What is difference between EMI and RFI?

• RFI is stands for radio frequency interference, refers to noise that falls on the radio frequency spectrum whereas, EMI is stand for electromagnetic interference, refers to any frequency of electromagnetic noise.
• RFI is a subset of EMI and consist electromagnetic currents with a frequency between 3 kilohertz & 300 gigahertz.

What is EMC?

EMC is stands for Electromagnetic Compatibility. It describes how a device functions or performs in an environment of electromagnetic noise. EMC includes two factors that is TOLERANCE TO NOISE (NOISE IMMUNITY) and HOW MUCH NOISE IT PRODUCES.

Where Does EMI Comes From?

EMI generated because of man-made and natural causes. Both are listed below:

NATURAL CAUSES OF EMI:

There are different resources through which EMI generated such as lightning strikes, solar flares, static electricity, cosmic noise, atmospheric electrical storms, solar magnetic storms, dust storms, snowstorms. Natural EMI can occur at any time.

MAN-MADE CAUSES OF EMI:

1. Residential Causes: The EMI comes from devices that operate using a wireless signal, but also emanate from a variety of other electronic appliances such as wifi devices, mobile, microwaves, heating pads, Bluetooth devices, laptops, heaters, etc.
2. Industrial Causes: The EMI are often larger-scale and can cause severe damage to important technologies. Some common EMI sources are television transmissions, radio & satellite, electric motors & generators, grid power, etc.

What is an EMI Filter?


An EMI filter is an aloof electrical device comprising of capacitors and inductors arranged in a particular circuit to smother high frequency noise engendering along hardware and office electrical cables. EMI is fundamentally showed as symphonious vitality/commotion created by sharp changes in circuit flows/voltages.

What does an EMI filter do?

When EMI Filters connected to circuits or gadgets, it can stifle electromagnetic noise transmitted through conduction. These filters extricate any undesirable current directed through wiring or links, while permitting alluring flows to stream openly.

How do EMI filters work?

Most electromagnetic noise is in a higher frequency range, so EMI filters are often low-pass filters that shift out high frequencies while letting lower frequencies pass through.

At Premier Filters, we have a wide range of EMI filters and unlimited custom capability to address any EMI power line filter requirement. The EMI filters available are Three Phase Filters, Single Phase EMI Filters, Mil/COTS EMI Filters, DC FILTERS, Custom Filters, Tempest EMI Filters, Facility/SCIF EMI Filters, and Commercial/Industrial EMI Filters.

These EMI Filters designed, manufactured and supported via global network and infrastructure. Premier Filters meets the stringent demands required by today's markets/industries. We are offering EMI Power Line Filters, for Military, Industrial and Commercial purposes. Want to know more? Call us at 657-226-0091 or you can e-mail at info@premieremc.com to discuss your EMI filter requirements.

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