About EMI Filters / EMI Suppression

EMI Filters / EMI Suppression

EMI Filters, or Electromagnetic Interference (EMI) Filters, are devices designed to filter out high-frequency interference in order to reduce Electromagnetic interference (EMI). This type of filter is made up of components that reduce EMI or noise at a given frequency range. Common components of an EMI filter include capacitors, inductors, and ferrites. These components work together to form an LC circuit which will dampen the high frequency signals that cause the EMI. However, the effectiveness of an EMI Filter will depend on the implementation and design of the filter, as well as the type and strength of interference that is present. It is important to note that EMI Filters can only provide limited attenuation, meaning that the amount of interference or noise that is reduced will not always be sufficient for a given application. Careful design and implementation is required in order to ensure that the EMI Filter is sufficiently shielding the system from EMI sources.
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B65847A0000R030


EPCOS TDK Ferrite Cores & Accessories EP20 N30 6700 30%-20%
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TDK Availability : 374
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USD 3.9369

Multiples of: 1

PSDB1005NT390


Inductor: wire; SMD; 39uH; 1.7A; 106mO; 10.3x10.4x5mm; ±20%
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Viking Availability : 372
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USD 0.2783

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PCS127MT120


Inductor: wire; SMD; 12uH; 4.9A; 24mO; 12x12x8mm; ±20%; -40÷125°C
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Viking Availability : 372
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USD 0.3486

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UECESDR1600000


Ferrite Cores & Accessories NULL
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Kemet Availability : 372
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USD 0.7398

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PCS125MT331


Inductor: wire; SMD; 330uH; 680mA; 510mO; 12x12x6mm; ±20%; -40÷125°C
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Viking Availability : 371
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USD 0.3174

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9598354202


Ferrite Cores & Accessories 98 EER Core EER35/42 Ind 2600 nH 25% TOL
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Fair-Rite Availability : 371
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USD 1.84

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WLBD1608HCU601TH


Ferrite Beads Chip Bead 1608HC(0603) 600 OHM +/-25%
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Walsin Availability : 370
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USD 0.0037

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MS193-20C


EMI Gaskets, Sheets, Absorbers & Shielding 19.9 x 18.9 x 3mm Two-piece Drawn-Seamless RF Shield/EMI Shield COVER
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Masach Availability : 370
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USD 0.7544

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HCI0750-1R5


Inductor: wire; SMD; 1.5uH; Ioper:13A; 4.5mO; ±20%; Isat:12A
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Ferrocore Availability : 370
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USD 0.7926

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ESD-FPL-16


Ferrite Cable Cores 25.4x1.9mm Bare Ni-Zn for Flat Cable
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Kemet Availability : 370
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USD 0.8825

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11-32AH-BD-16


EMI Gaskets Sheets Absorbers & Shielding BeCu EMI Gasket Adhesive Mount
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LeaderTech Availability : 370
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USD 10.119

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CF710AB20323048


EMI Gaskets, Sheets, Absorbers & Shielding GK,NiCu,CF,V0 .04 x 8.0 x 12"
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Laird Connectivity Availability : 370
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USD 25.6371

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4300-003LF


EMI Feedthrough Filters 2700pF 100Volts@125C
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CTS Availability : 369
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USD 9.5681

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NLV08KTC150


Inductor: wire; SMD; 1008; 15uH; 175mA; 2.2O; ±10%; ftest:2.52MHz
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Viking Availability : 368
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USD 0.075

Multiples of: 10

NL12MTR33


Inductor: wire; SMD; 1812; 0.33uH; 605mA; 280mO; ftest:25.2MHz; Q:30
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Viking Availability : 368
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USD 0.1094

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DL1812-0.27


Inductor: wire; SMD; 1812; 0.27uH; 635mA; 0.3O; ftest:25.2MHz; Q:40
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Ferrocore Availability : 368
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USD 0.1251

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36003200S


EMI Gaskets, Sheets, Absorbers & Shielding WE-SHC Cabinet Cvr 20x20x3mm
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Wurth Availability : 368
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USD 1.175

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HI28B2038


LeaderTech Ferrite Clamp On Cores Sleeve Snap Hi Imp .428"ID 410100
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LeaderTech Availability : 368
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USD 47.8109

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B66364B1016T001


Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO
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TDK Availability : 367
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USD 1.5094

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HCI1335-1R8


Inductor: wire; SMD; 1.8uH; Ioper:11.5A; 5.6mO; ±20%; Isat:22A
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Ferrocore Availability : 367
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USD 1.0787

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