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

    Wurth Elektronik
    0603 (1608M)
    -
    -
    30Ω
    -
    -
    -
    1A
    EMI Suppression
    1.6 x 0.8 x 0.8mm
    1.6mm
    0.8mm
    0.8mm
    30mΩ
    -
    Wurth Elektronik
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    KEMET
    Tape & Reel
    408Ω
    664Ω
    850Ω
    1181.7Ω
    -
    903Ω
    1.5A
    Chip Bead
    0.177 x 0.063 x 0.063mm
    -
    -
    -
    -
    -
    Murata
    0603 (1608M)
    -
    -
    180Ω
    -
    -
    -
    1.5A
    Chip Ferrite Bead
    1.6 x 0.8 x 0.8mm
    1.6mm
    0.8mm
    0.8mm
    90mΩ
    -
    Wurth Elektronik
    0402 (1005M)
    -
    -
    60Ω
    -
    -
    -
    400mA
    EMI Suppression
    1 x 0.5 x 0.5mm
    1mm
    0.5mm
    0.5mm
    300mΩ
    -
    KEMET
    Tape & Reel
    32.5Ω
    54.5Ω
    80Ω
    113.2Ω
    -
    121.2Ω
    1.2A
    Chip Bead
    0.079 x 0.049 x 0.033mm
    -
    -
    -
    -
    -
    TDK
    0805
    -
    -
    -
    -
    -
    -
    -
    Chip Bead
    2 x 1.25 x 0.85mm
    2mm
    1.25mm
    0.85mm
    100mΩ
    -
    TDK
    0603 (1608M)
    -
    -
    120Ω
    -
    -
    -
    400mA
    Chip Bead
    1.6 x 0.8 x 0.8mm
    1.6mm
    0.8mm
    0.8mm
    0.30Ω
    -
    Murata
    0603 (1608M)
    -
    -
    60Ω
    -
    -
    -
    550mA
    Chip Ferrite Bead
    1.6 x 0.8 x 0.8mm
    1.6mm
    0.8mm
    0.8mm
    250mΩ
    -
    Murata
    0603 (1608M)
    -
    -
    1000Ω
    -
    -
    1000Ω
    100mA
    Chip Ferrite Bead
    1.6 x 0.8 x 0.8mm
    1.6mm
    0.8mm
    0.8mm
    1.6Ω
    -
    Wurth Elektronik
    Axial
    -
    -
    -
    -
    -
    -
    -
    EMI Suppression
    7.5 x 2.4 x 7.5mm
    -
    -
    -
    -
    -
    TE Connectivity
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Wurth Elektronik
    Axial
    -
    -
    -
    -
    -
    -
    -
    EMI Suppression
    7.7 x 4 x 20mm
    -
    -
    -
    -
    -
    Wurth Elektronik
    Axial
    670Ω
    -
    976Ω
    -
    -
    -
    3A
    Ferrite Bead
    6 (Dia.) x 10mm
    10mm
    -
    10mm
    20mΩ
    6mm
    Murata
    0603
    76.8Ω
    94.8Ω
    100Ω
    151Ω
    -
    152Ω
    -
    Chip Ferrite Bead
    1.6 x 0.8 x 0.8mm
    -
    -
    -
    -
    -
    Murata
    0603
    284Ω
    435Ω
    600Ω
    418Ω
    -
    137Ω
    -
    Chip Ferrite Bead
    1.6 x 0.8 x 0.8mm
    -
    -
    -
    -
    -
    Murata
    1206 (3216M)
    -
    -
    120Ω
    -
    -
    -
    150mA
    Inductor Type
    3.2 x 1.6 x 0.8mm
    3.2mm
    1.6mm
    0.8mm
    0.20Ω
    -
    Wurth Elektronik
    1812 (4532M)
    -
    -
    600Ω
    -
    -
    -
    3A
    EMI Suppression
    4.5 x 3.2 x 1.5mm
    4.5mm
    3.2mm
    1.5mm
    40mΩ
    -
    Murata
    0603 (1608M)
    -
    -
    330Ω
    -
    -
    -
    1.2A
    Chip Bead
    1.6 x 0.8 x 0.8mm
    1.6mm
    0.8mm
    0.8mm
    0.15Ω
    -
    Murata
    0603
    17.9Ω
    22Ω
    26Ω
    31Ω
    -
    31.3Ω
    -
    Chip Ferrite Bead
    1.6 x 0.8 x 0.5mm
    -
    -
    -
    -
    -
    Results per page