Ferrite Beads

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Ferrite Beads also known as ferrite chokes are passive devices and they are used to constrict high-frequency signals in electronic components. The ferrite becomes resistive over its intended frequency range and uses up the noise energy in the form of heat.


How do the ferrite beads work?


The ferrite bead is connected in series with the power supply rail and is often combined with the capacitors to ground on either side of the bead. This then forms a low-pass filter network, further reducing the high-frequency power supply noise. Use SPICE (Simulation Program with Integrated Circuit Emphasis) or another similar tool to ensure any anti-resonance peaks caused by ferrite or PCB inductive structure does not violate the target impedance limit.


Ferrite Beads come in two categories:


High-Q Beads - typically used as resonators and must not be used in power isolation circuits


Low-Q Beads - these are also called absorptive beads and they are lossy and make good filter networks because they are designed to absorb high-frequency noise currents and dissipate it as heat


What to consider when choosing Ferrite Beads?


Make sure that any voltage drop does not cause the target supply rail to fall below the recommended operating conditions of the device


The ferrite bead is inductive, therefore do not use it with High-Q decoupling capacitors


Applying ferrite beads correctly can be an effective and inexpensive way to reduce high-frequency noise and switching transients


Where are Ferrite Beads used?


Eliminating high-frequency EMI noise on any circuit design


Electronic devices such as mobile phones


Computers and laptops


TV tuners


Audio Players


DVD’s


Gaming Systems

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Omschrijving Prijs Package Type Impedance at 25 MHz Impedance at 100 MHz Impedance at 300 MHz Impedance at 500 MHz Impedance at 1 GHz Current Rating Type Dimensions Length Depth Height Diameter Application
RS-stocknr. 870-9291
FabrikantnummerZ0402C100ASMST
FabrikantKEMET
0,039 €
Each (In a Pack of 10000)
Aantal stuks
0402 (1005M) - 10Ω - - - 1A Multilayer Chip Bead 25.4 x 12.7 x 12.7mm 25.4mm 12.7mm 12.7mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9304
FabrikantnummerZ0402C121ASMST
FabrikantKEMET
0,024 €
Each (In a Pack of 10000)
Aantal stuks
0402 (1005M) - 120Ω - - - 500mA Multilayer Chip Bead 25.4 x 12.7 x 12.7mm 25.4mm 12.7mm 12.7mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9323
FabrikantnummerZ0402C601ESMST
FabrikantKEMET
0,024 €
Each (In a Pack of 10000)
Aantal stuks
0402 (1005M) - 600Ω - - - 300mA Multilayer Chip Bead 25.4 x 12.7 x 12.7mm 25.4mm 12.7mm 12.7mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9348
FabrikantnummerZ0603C241CSMST
FabrikantKEMET
0,024 €
Each (In a Pack of 4000)
Aantal stuks
0603 (1608M) - 240Ω - - - 250mA Multilayer Chip Bead 40.64 x 20.32 x 20.32mm 40.64mm 20.32mm 20.32mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9310
FabrikantnummerZ0402C241CSMST
FabrikantKEMET
0,023 €
Each (In a Pack of 10000)
Aantal stuks
0402 (1005M) - 240Ω - - - 250mA Multilayer Chip Bead 25.4 x 12.7 x 12.7mm 25.4mm 12.7mm 12.7mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9308
FabrikantnummerZ0402C121BSMST
FabrikantKEMET
0,028 €
Each (In a Pack of 10000)
Aantal stuks
0402 (1005M) - 120Ω - - - 300mA Multilayer Chip Bead 25.4 x 12.7 x 12.7mm 25.4mm 12.7mm 12.7mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9342
FabrikantnummerZ0603C241ESMST
FabrikantKEMET
0,024 €
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Aantal stuks
0603 (1608M) - 240Ω - - - 600mA Multilayer Chip Bead 40.64 x 20.32 x 20.32mm 40.64mm 20.32mm 20.32mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9314
FabrikantnummerZ0402C601ASMST
FabrikantKEMET
0,024 €
Each (In a Pack of 10000)
Aantal stuks
0402 (1005M) - 600Ω - - - 300mA Multilayer Chip Bead 25.4 x 12.7 x 12.7mm 25.4mm 12.7mm 12.7mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9320
FabrikantnummerZ0603C102BSMST
FabrikantKEMET
0,024 €
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Aantal stuks
0603 (1608M) - 1000Ω - - - 200mA Multilayer Chip Bead 40.64 x 20.32 x 20.32mm 40.64mm 20.32mm 20.32mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9301
FabrikantnummerZ0402C102BSMST
FabrikantKEMET
0,024 €
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Aantal stuks
0402 (1005M) - 1000Ω - - - 150mA Multilayer Chip Bead 25.4 x 12.7 x 12.7mm 25.4mm 12.7mm 12.7mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9317
FabrikantnummerZ0402C121ESMST
FabrikantKEMET
0,039 €
Each (In a Pack of 10000)
Aantal stuks
0402 (1005M) - 120Ω - - - 450mA Multilayer Chip Bead 25.4 x 12.7 x 12.7mm 25.4mm 12.7mm 12.7mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9345
FabrikantnummerZ0603C220ASMST
FabrikantKEMET
0,028 €
Each (In a Pack of 4000)
Aantal stuks
0603 (1608M) - 22Ω - - - 1.5A Multilayer Chip Bead 40.64 x 20.32 x 20.32mm 40.64mm 20.32mm 20.32mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9358
FabrikantnummerZ0603C601ESMST
FabrikantKEMET
0,051 €
Each (In a Pack of 4000)
Aantal stuks
0603 (1608M) - 600Ω - - - 300mA Multilayer Chip Bead 40.64 x 20.32 x 20.32mm 40.64mm 20.32mm 20.32mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9339
FabrikantnummerZ0603C102FSMST
FabrikantKEMET
0,028 €
Each (In a Pack of 4000)
Aantal stuks
0603 (1608M) - 1000Ω - - - 300mA Multilayer Chip Bead 40.64 x 20.32 x 20.32mm 40.64mm 20.32mm 20.32mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9354
FabrikantnummerZ0603C601BSMST
FabrikantKEMET
0,024 €
Each (In a Pack of 4000)
Aantal stuks
0603 (1608M) - 600Ω - - - 250mA Multilayer Chip Bead 40.64 x 20.32 x 20.32mm 40.64mm 20.32mm 20.32mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
RS-stocknr. 870-9336
FabrikantnummerZ0603C182DSMST
FabrikantKEMET
0,037 €
Each (In a Pack of 4000)
Aantal stuks
0603 (1608M) - 1800Ω - - - 200mA Multilayer Chip Bead 40.64 x 20.32 x 20.32mm 40.64mm 20.32mm 20.32mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
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FabrikantnummerZ0603C511CSMST
FabrikantKEMET
0,024 €
Each (In a Pack of 4000)
Aantal stuks
0603 (1608M) - 510Ω - - - 200mA Multilayer Chip Bead 40.64 x 20.32 x 20.32mm 40.64mm 20.32mm 20.32mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line
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FabrikantnummerZ0402C680CSMST
FabrikantKEMET
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Each (In a Pack of 10000)
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0402 (1005M) - 68Ω - - - 400mA Multilayer Chip Bead 25.4 x 12.7 x 12.7mm 25.4mm 12.7mm 12.7mm - Digital Product Clock Lines, High Frequency Noise Counter, LSI Power Supplies, Mobile Devices, Noise Suppression, Signal Line