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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DE0703-390


Inductor: wire; SMD; 390uH; 260mA; 2.94O; 7.3x7.3x3.2mm; ±20%
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Ferrocore Availability : 0
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USD 0.2078

Multiples of: 1

IP4254CZ12-6-TTL,1


NXP Semiconductors EMI Network Filter Arrays INTEGRATED 4- 6- AND 8-CH PASS FLTR WESD
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Nexperia Availability : 0
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USD 0.2079

Multiples of: 1

RT-120-60-60


Ferrite: toroidal; L:6mm; Øint:6mm; Øout:12mm; Core mat: K5B; 34O
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ESSENTRA Availability : 0
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USD 0.208

Multiples of: 1

NFZ32BW9R0HN10L


Ferrite Beads 1210 9.0ohm 30%
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Murata Availability : 0
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USD 0.2082

Multiples of: 1

HPI1040-R68


Inductor: wire; SMD; 680nH; Ioper:22A; 2.1mO; Body dim:10x10x3.8mm
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Ferrocore Availability : 0
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USD 0.2083

Multiples of: 1

HPI1040-R56


Inductor: wire; SMD; 560nH; Ioper:23A; 1.7mO; Body dim:10x10x3.8mm
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Ferrocore Availability : 0
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USD 0.2083

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ELK-EA220FA


EMI Filter Beads, Chips & Arrays ELKEA EMI Filter H-Rated current typ
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Panasonic Availability : 0
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USD 0.2084

Multiples of: 1

EXCML45A910H


Ferrite Beads 91 OHM 25% BEAD CORE
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Panasonic Availability : 0
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USD 0.2085

Multiples of: 1

Z1206C501BPWZT


Ferrite Beads 500Ohms 2A 25% DCR=70mOhms
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Kemet Availability : 0
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USD 0.2085

Multiples of: 1

NFZ32BW621HZ10L


Ferrite Beads 620ohms@1MHz 0.25A DCR 2.7ohms
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Murata Availability : 0
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USD 0.2086

Multiples of: 1

EMIF03-SIM05F3


STMicroelectronics ESD Suppressors EMI filter SWP 100nA 6V 12pF
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STMicroelectronics Availability : 0
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USD 0.2092

Multiples of: 1

ELK-EA221FA


EMI Filter Beads, Chips & Arrays ELKEA EMI Filter H-Rated current typ
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Panasonic Availability : 0
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USD 0.2094

Multiples of: 2000

ELK-EA333FA


EMI Filter Beads, Chips & Arrays ELKEA EMI Filter H-Rated current typ
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Panasonic Availability : 0
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USD 0.2094

Multiples of: 2000

2644246801


Ferrite Cores & Accessories 44 Multi-Hole Plate Z= 25 OHM @100MHz
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Fair-Rite Availability : 0
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USD 0.21

Multiples of: 8400

ACF451832-103-TD01


TDK EMI Network Filter Signal Line EMI Filter
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TDK Availability : 0
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USD 0.2102

Multiples of: 1

MEM2012V241RT


EMI Filter Circuits COMPLETE MFG PN 810-MEM2012V241RT001
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TDK Availability : 0
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USD 0.2102

Multiples of: 4000

MEM2012SC220


EMI Filter Circuits COMPLETE MFG PN 810-MEM2012SC220T001
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TDK Availability : 0
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USD 0.2104

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MEM2012V121R


EMI Filter Circuits COMPLETE MFG PN 810-MEM2012V121RT001
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TDK Availability : 0
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USD 0.2104

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MEM2012V211RT


TDK EMI Network Filter 210MHz 10V 100mA 20dB Insertion Loss
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TDK Availability : 0
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USD 0.2104

Multiples of: 1

MEM2012SC101


EMI Filter Circuits COMPLETE MFG PN 810-MEM2012SC101T001
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TDK Availability : 0
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USD 0.2104

Multiples of: 1

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