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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B65803J0000R608


Ferrite Cores & Accessories RM4 PC200 500 +30% -20%
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TDK Availability : 705
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USD 1.1567

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B65888N1012D001


Ferrite Cores & Accessories COILFORMER RM14 SUMIKON PM9630
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TDK Availability : 704
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USD 1.0529

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B66481G0000X608


Ferrite Cores & Accessories EQ25x5.6x18 PC200 1800 +30% -20%
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TDK Availability : 704
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USD 1.6554

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HFA163090-0A2


Ferrite Clamp On Cores 210ohms 300MHz 9.09mm Inside Slot
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Laird Connectivity Availability : 703
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USD 2.5163

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HPI0640-2R2


Inductor: wire; SMD; 2.2uH; Ioper:8.5A; 11.5mO; ±20%; Isat:9.5A
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Ferrocore Availability : 702
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USD 0.2189

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HCI1040-2R0


Inductor: wire; SMD; 2uH; Ioper:10.5A; 7.3mO; ±20%; Isat:13A
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Ferrocore Availability : 702
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USD 0.9365

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B65811F0630J048


Ferrite Cores & Accessories FERRITE CORES & ACCESSORIES RM
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TDK Availability : 701
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USD 3.7275

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GZ1608U301CTF


250mO ±25% 300O@100MHz 0603 Ferrite Beads ROHS
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Sunlord Availability : 699
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USD 0.0031

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DLG-0705-270


Inductor: wire; SMD; 0705; 27uH; 1.3A; 0.12O
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Ferrocore Availability : 699
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USD 0.161

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FLF-501B


Ferrite: two-piece; on round cable; Ø:5mm; 70O; A:15mm; B:14mm
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Ferrocore Availability : 698
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USD 0.827

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28A5776-0A2


Ferrite Clamp On Cores CLAMP-ON FILTER BLK 210ohms 100MHz
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Laird Connectivity Availability : 698
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USD 6.1897

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HFB150070-200


Laird Technologies Ferrite Cable Cores 242ohms 300MHz 6.99mm Inside Dia.
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Laird Connectivity Availability : 696
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USD 1.4416

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B66291G0000X149


Ferrite Cores & Accessories ELP43/10/28 N49OL
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TDK Availability : 695
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USD 4.4509

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B66365GX127


Ferrite Cores & Accessories ETD44/22/15 N27OL
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TDK Availability : 693
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USD 1.9482

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PCS74MT681


Inductor: wire; SMD; 680uH; 220mA; 4.63O; 7.3x7.3x4.5mm; ±20%
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Viking Availability : 692
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USD 0.2689

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HCI1040-1R5


Inductor: wire; SMD; 1.5uH; Ioper:13A; 5.2mO; ±20%; Isat:17A
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Ferrocore Availability : 692
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USD 0.9318

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ESD-FPL-45-12


Ferrite Cable Cores 40x1.5mm Bare Ni-Zn for Flat Cable
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Kemet Availability : 691
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USD 1.2663

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2631103002


Fair-Rite Ferrite Cable Cores 31 Round Cable Core Z=340 OHM 100MHz
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Fair-Rite Availability : 691
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USD 5.5545

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FCM2012KF-900T08


0805 Ferrite Beads ROHS
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Tai-Tech Availability : 690
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USD 0.0051

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CBW322513U800T


Ferrite Beads 1210 RoHS
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Fenghua Advanced Availability : 690
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USD 0.0342

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