Ferrite Beads | Murata Chip Ferrite Chokes | RS
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    Ferrite Beads

    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

    1873 Producten voor Ferrite Beads

    € 0,014
    Per stuk (op een rol 10000)
    TE Connectivity
    0402
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    € 0,03
    Per stuk (geleverd op een wiel)
    Bourns
    0603
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    Wurth Elektronik
    0402
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    Ferrite Bead
    1.6 x 0.8 x 0.8mm
    -
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    TDK
    0805 (2012M)
    -
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    330Ω
    -
    -
    -
    2.5A
    Chip Bead
    2 x 1.25 x 0.85mm
    2mm
    1.25mm
    0.85mm
    0.050Ω
    -
    KEMET
    Tape & Reel
    29.7Ω
    59.2Ω
    120Ω
    321Ω
    -
    540Ω
    3.5A
    Chip Bead
    0.063 x 0.031 x 0.031mm
    -
    -
    -
    -
    -
    Taiyo Yuden
    0805 (2012M)
    -
    -
    -
    -
    -
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    Ferrite Bead
    2 x 1.25 x 0.85mm
    2mm
    1.25mm
    0.85mm
    -
    -
    € 0,045
    Per stuk (geleverd op een wiel)
    TE Connectivity
    0402
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    -
    -
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    -
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    Murata
    0603
    54.1Ω
    75.5Ω
    100Ω
    129Ω
    -
    107Ω
    -
    Chip Ferrite Bead
    1.6 x 0.8 x 0.6mm
    -
    -
    -
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    -
    TE Connectivity
    0402
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    -
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    -
    -
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    -
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    KEMET
    Tape & Reel
    112.5Ω
    225Ω
    470Ω
    1266.5Ω
    -
    1500Ω
    4A
    Chip Bead
    0.063 x 0.031 x 0.031mm
    -
    -
    -
    -
    -
    TE Connectivity
    1210
    -
    -
    -
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    € 0,126
    Per stuk (geleverd op een wiel)
    Bourns
    1812
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    € 0,023
    Per stuk (op een rol 4000)
    TE Connectivity
    0603
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
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    -
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    € 0,038
    Per stuk (op een rol 15000)
    TE Connectivity
    0201
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    -
    -
    -
    -
    -
    -
    -
    -
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    € 0,053
    Per stuk (geleverd op een wiel)
    Bourns
    1206
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    Wurth Elektronik
    0201
    -
    -
    -
    -
    -
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    -
    Ferrite Bead
    0.6 x 0.3 x 0.3mm
    -
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    € 0,11
    Per stuk (geleverd op een wiel)
    TE Connectivity
    1204
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    € 0,021
    Per stuk (op een rol 3000)
    Bourns
    1206
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    TE Connectivity
    0402
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    TE Connectivity
    1204
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