Ferrite Beads | Murata Chip Ferrite Chokes | RS
Recently searched

    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

    1806 Products showing for Ferrite Beads

    KEMET
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Murata
    0603
    130Ω
    174Ω
    220Ω
    285Ω
    -
    190Ω
    -
    Chip Ferrite Bead
    1.6 x 0.8 x 0.5mm
    -
    -
    -
    -
    -
    Wurth Elektronik
    Axial
    598Ω
    -
    800Ω
    -
    -
    -
    3A
    Ferrite Bead
    6 (Dia.) x 10mm
    10mm
    -
    10mm
    20mΩ
    6mm
    Murata
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Murata
    2012
    -
    -
    110Ω
    -
    -
    -
    5A
    Ferrite Bead
    2 x 1.25 x 0.85mm
    2mm
    1.25mm
    0.85mm
    13mΩ
    -
    Murata
    0402
    22.5Ω
    42.5Ω
    60Ω
    98.2Ω
    -
    102Ω
    -
    Chip Ferrite Bead
    1.0 x 0.5 x 0.5mm
    -
    -
    -
    -
    -
    Murata
    0603 (1608M)
    -
    -
    10Ω
    -
    -
    -
    500mA
    Chip Ferrite Bead
    1.6 x 0.8 x 0.8mm
    1.6mm
    0.8mm
    0.8mm
    250mΩ
    -
    Murata
    0805 (2012M)
    -
    -
    60Ω
    -
    -
    -
    3.5A
    Chip Ferrite Bead
    2 x 1.25 x 0.85mm
    2mm
    1.25mm
    0.85mm
    20mΩ
    -
    KEMET
    Tape & Reel
    58.7Ω
    100.9Ω
    150Ω
    220.8Ω
    -
    270Ω
    1A
    Chip Bead
    0.063 x 0.031 x 0.031mm
    -
    -
    -
    -
    -
    Wurth Elektronik
    SMD
    58Ω
    -
    91Ω
    -
    -
    -
    6A
    Ferrite Bead
    8.5 x 3 x 2.55mm
    8.5mm
    3mm
    2.55mm
    900mΩ
    -
    KEMET
    Tape & Reel
    985.8Ω
    1601.6Ω
    20Ω
    1170Ω
    -
    359.8Ω
    3A
    Chip Bead
    0.126 x 0.098 x 0.098mm
    -
    -
    -
    -
    -
    KEMET
    Tape & Reel
    503.4Ω
    793.9Ω
    1000Ω
    965.7Ω
    -
    377.1Ω
    2A
    Chip Bead
    0.126 x 0.098 x 0.098mm
    -
    -
    -
    -
    -
    Wurth Elektronik
    Wide Band
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Murata
    0805 (2012M)
    -
    -
    1000Ω
    -
    -
    -
    500mA
    Chip Bead
    2 x 1.25 x 0.85mm
    2mm
    1.25mm
    0.85mm
    0.28Ω
    -
    Murata
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Murata
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Murata
    0805 (2012M)
    -
    -
    220Ω
    -
    -
    -
    2A
    Chip Ferrite Bead
    2 x 1.25 x 0.85mm
    2mm
    1.25mm
    0.85mm
    45mΩ
    -
    Murata
    0402
    108Ω
    206Ω
    330Ω
    440Ω
    -
    213Ω
    -
    Chip Ferrite Bead
    1.0 x 0.5 x 0.5mm
    -
    -
    -
    -
    -
    Murata
    0402 (1005M)
    -
    -
    1000Ω
    -
    -
    1400Ω
    250mA
    Chip Ferrite Bead
    1 x 0.5 x 0.5mm
    1mm
    0.5mm
    0.5mm
    1.1Ω
    -
    Murata
    0402 (1005M)
    -
    -
    120Ω
    -
    -
    -
    2A
    Chip Bead
    1 x 0.5 x 0.5mm
    1mm
    0.5mm
    0.5mm
    0.055Ω
    -
    Results per page