Ferrite Beads, Rings & Sleeves
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 circuitsLow-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 heatWhat 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 deviceThe ferrite bead is inductive, therefore do not use it with High-Q decoupling capacitorsApplying ferrite beads correctly can be an effective and inexpensive way to reduce high-frequency noise and switching transientsWhere are Ferrite Beads used?Eliminating high-frequency EMI noise on any circuit designElectronic devices such as mobile phonesComputers and laptopsTV tunersAudio PlayersDVD’sGaming Systems
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RS PRO Openable Ferrite Clamp, 22.5 Dia. x 43mm, For Computer Peripherals, Digital TV, Internal & External Power
VND257,934.12Pack (1 Pack of 2) -
TDK Openable Ferrite Clamp, 30 Dia. x 39mm, For Audio Equipment, Copiers, Digital Telephones, Electronic Musical
VND271,559.40Pack (1 Pack of 2) -
KEMET Openable Ferrite Ring, 30 x 42 x 30mm, For Round Cable, Apertures: 1, Diameter 13mm
VND289,347.96 -
Richco A5 Openable Flat Cable Ferrite, 20 max. wires, Split Core, Inner dims. 26.6 x 0.8mm
VND303,540.96 -
Fair-Rite Ferrite Ring Round Cable Core, For: EMI Suppression, 17.45 x 9.5 x 12.7mm
VND323,221.92Pack (1 Pack of 10) -
-15.30%
TDK Openable Ferrite Clamp, 20.5 Dia. x 36mm, For Audio Equipment, Copiers, Digital Telephones, Electronic Musical
VND350,283.24VND324,735.84Box (1 Box of 5) -
TDK Openable Ferrite Clamp, 19.5 Dia. x 35mm, For Audio Equipment, Copiers, Digital Telephones, Electronic Musical
VND336,279.48Box (1 Box of 5) -
EPCOS Ferrite Ring Ferrite Core, For: Broadband Transformers, Choke, Mixer, Pulse, Transformer, 60.1 x 39.2 x 18.8mm
VND342,902.88 -
Wurth Elektronik Ferrite Bead, 1.6 x 0.8 x 0.8mm (0603 (1608M)), 1000Ω impedance at 100 MHz
VND357,852.84Pack (1 Pack of 100) -
Richco A5 Openable Flat Cable Ferrite, 26 max. wires, Split Core, Inner dims. 34.4 x 0.8mm
VND357,852.84 -
RS PRO Openable Ferrite Clamp, 31.5 x 33 x 30mm, For Computer Peripherals, Digital TV, Internal & External Power
VND360,123.72Pack (1 Pack of 2) -
Wurth Elektronik Openable Ferrite Sleeve, 28 x 31 x 35.1mm, For EMI Suppression, Apertures: 1, Diameter 12.5mm
VND368,828.76 -
Fair-Rite Openable Ferrite Clamp, 39.5 x 23 x 23.4mm, For EMI Suppression, Apertures: 1, Diameter 10.15mm
VND371,478.12 -
Wurth Elektronik 4W620 Openable Flat Cable Ferrite, 40 max. wires, Inner dims. 52 x 1.3mm
VND386,617.32 -
Fair-Rite Openable Ferrite Sleeve, 56.4 x 27.45 x 42.95mm, For EMI Suppression, Apertures: 1, Diameter 25.65mm
VND415,192.56 -
8 (Dia.) x 45mm Fair-Rite Ferrite Core
VND443,200.08Pack (1 Pack of 5) -
KEMET Ferrite Ring Toroid Core, For: Consumer Electronics, 61 x 32.4 x 24mm
VND495,619.56 -
FERROXCUBE Ferrite Ring Toroid Core, For: Choke, Current Regulation, Energy Storage, Transformer, 9.5 x 5.4 x 3.4mm
VND501,107.52Pack (1 Pack of 10) -
Richco Openable Ferrite Sleeve, 28 x 29.6mm, For EMI Suppression, Apertures: 1, Diameter 13.5mm
VND550,309.92 -
RS PRO Ferrite Ring Ferrite Core, For: EMI Suppression, 15.64 x 6.99 x 28.57mm
VND607,649.64Pack (1 Pack of 6) -
EPCOS Ferrite Ring Toroid Core, For: Automotive Electronics, EMC Components, General Electronics, 89.3 x 52.4 x 14.8mm
VND934,845.60 -
Laird Technologies Ferrite Bead (Cylindrical EMI Core), 15.88 x 14.27mm (0625), 79Ω impedance at 25 MHz, 163Ω impedance
VND954,715.80Pack (1 Pack of 100) -
FERROXCUBE Ferrite Ring Ring Core, For: Interference Suppression Coil, Pulse and Wide Band Transformers, 63.4 x 37.7 x
VND1,007,324.52 -
FERROXCUBE Ferrite Ring Ring Core, For: Interference Suppression Coil, Pulse and Wide Band Transformers, 63.4 x 37.7 x
VND1,030,790.28