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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BLM21HE802SN1L


Ferrite Beads 0805 8000ohm 0.70ohm 25%
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Murata Availability : 2960
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USD 0.1361

Multiples of: 1

DPWC0805-361


Inductor: wire with current compensation; SMD; 0805; 280mA; ±25%
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Ferrocore Availability : 2958
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USD 0.1579

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DL4N-100


Inductor: wire; SMD; 100uH; 160mA; 2.5O
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Ferrocore Availability : 2950
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USD 0.1204

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Hot BLM18HG102SH1D


Ferrite Beads 0603 1Kohms GHz Gen Use Tape
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Murata Availability : 2948
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USD 0.0508

Multiples of: 1

CBW201209U310T


50mO ±25% 31O@100MHz 0805 Ferrite Beads ROHS
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Fenghua Advanced Availability : 2947
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USD 0.0041

Multiples of: 100

CBM321609U220T


±25% 22O@100MHz 1206 Ferrite Beads ROHS
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Fenghua Advanced Availability : 2946
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USD 0.009

Multiples of: 50

ACMS321609A2212.5A


2.5A 1 120mΩ 220Ω@100MHz ±25% 1206 Ferrite Beads ROHS
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HYHONGYEX Availability : 2945
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USD 0.0092

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CBM453215U101T


20mΩ ±25% 100Ω@100MHz 1812 Ferrite Beads ROHS
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Fenghua Advanced Availability : 2942
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USD 0.0679

Multiples of: 5

ACMS100505A2211.5A


1.5A 1 150mΩ 220Ω@100MHz ±25% 0402 Ferrite Beads ROHS
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HYHONGYEX Availability : 2939
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USD 0.0023

Multiples of: 100

ACMS160808A7003A


3A 1 40mΩ 70Ω@100MHz ±25% 0603 Ferrite Beads ROHS
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HYHONGYEX Availability : 2939
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USD 0.0027

Multiples of: 100

ILB1206ER700V


EMI Filter Beads, Chips & Arrays 70ohms 25%
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Vishay Availability : 2939
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USD 0.0368

Multiples of: 1

NLV10KTC331


Inductor: wire; SMD; 1210; 330uH; 70mA; 12.3O; Q:20; ftest:0.796MHz
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Viking Availability : 2939
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USD 0.075

Multiples of: 10

Z1806C111APWST


Ferrite Beads 110Ohms 4A 25% DCR=7mOhms
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Kemet Availability : 2939
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USD 0.126

Multiples of: 1

28R1127-000


Ferrite Cable Cores 220ohms 100MHz 23.5mm Inside Slot
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Laird Connectivity Availability : 2939
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USD 0.8889

Multiples of: 1

B65803J0000R030


EPCOS TDK Ferrite Cores & Accessories RM4 N30 1900 30%-20%
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TDK Availability : 2935
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USD 1.2045

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DER0705-10


Inductor: wire; SMD; 10uH; 1.63A; 0.055O; 7.6x7.6x5.1mm; ±20%
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Ferrocore Availability : 2934
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USD 0.3705

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28B0686-100


Ferrite Cable Cores 139ohms 100MHz 9.52mm Inside Dia.
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Laird Connectivity Availability : 2933
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USD 0.3361

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Hot 2643178551


Ferrite Cable Cores 43 FULL FLAT CABLE CORE
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Fair-Rite Availability : 2933
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USD 0.5267

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MFBW1V2012-801-R


Ferrite Beads Multi Nor Cur, Impedance 800O 500mA SMT
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Eaton Availability : 2931
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USD 0.0186

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2673001601


Ferrite Cable Cores 73 SHIELD BEAD
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Fair-Rite Availability : 2931
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USD 0.0237

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