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

DVDs

Gaming Systems

"

...
Read more Read less

Filter

Visar 1 - 20 av 442 produkter
Resultat per sida
Beskrivning Pris 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-artikelnummer 166-9828
Tillv. art.nrBLM31PG500SN1L
VarumärkeMurata
0,698 kr
Each (On a Reel of 3000)
Enheter
1206 (3216M) - 50Ω - - - 3.5A Chip Ferrite Bead 3.2 x 1.6 x 1.1mm 3.2mm 1.6mm 1.1mm - Power Supplies
RS-artikelnummer 110-302
Tillv. art.nrBLM18BA050SN1D
VarumärkeMurata
0,066 kr
Each (In a Bag of 25)
Enheter
0603 (1608M) - - - - 500mA Chip Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - General Electronics
RS-artikelnummer 724-1589
Tillv. art.nrBLM31PG500SN1L
VarumärkeMurata
1,99 kr
Each (In a Pack of 25)
Enheter
1206 (3216M) - 50Ω - - - 3.5A Chip Ferrite Bead 3.2 x 1.6 x 1.1mm 3.2mm 1.6mm 1.1mm - Power Supplies
RS-artikelnummer 166-9796
Tillv. art.nrBLM18BA050SN1D
VarumärkeMurata
0,06 kr
Each (On a Reel of 4000)
Enheter
0603 (1608M) - - - - 500mA Chip Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - General Electronics
RS-artikelnummer 166-9710
Tillv. art.nrBL02RN2R1N1A
VarumärkeMurata
0,815 kr
Each (In a Box of 1500)
Enheter
Radial - - - - - 6A EMI Suppression 9 x 3.4 x 7.5mm 9mm 3.4mm 7.5mm - -
RS-artikelnummer 792-6221
Tillv. art.nrBLM18AG151SN1D
VarumärkeMurata
0,203 kr
Each (In a Bag of 25)
Enheter
0603 (1608M) - 150Ω - - - 700mA Chip Ferrite Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - EMI Suppression Filter, General Use
RS-artikelnummer 724-1545
Tillv. art.nrBLM21PG331SN1D
VarumärkeMurata
0,534 kr
Each (In a Pack of 25)
Enheter
0805 (2012M) - 330Ω - - - 1.5A Chip Ferrite Bead 2 x 1.25 x 0.85mm 2mm 1.25mm 0.85mm - EMI Suppression Filter, Power Supplies
RS-artikelnummer 167-4203
Tillv. art.nrBLM18HE102SN1D
VarumärkeMurata
0,28 kr
Each (On a Reel of 4000)
Enheter
0603 (1608M) - 1000Ω - - - 600mA Chip Ferrite Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - EMI Suppression Filter, GHz Band High-Speed Signal Line
RS-artikelnummer 747-4723
Tillv. art.nrBLM18KG260TN1D
VarumärkeMurata
0,308 kr
Each (In a Bag of 100)
Enheter
0603 (1608M) - 26Ω - - - 6A Chip Ferrite Bead 1.6 x 0.8 x 0.6mm 1.6mm 0.8mm 0.6mm - EMI Suppression Filter, GHz Band Digital Interface
RS-artikelnummer 724-1380
Tillv. art.nrBLM18PG121SN1D
VarumärkeMurata
0,451 kr
Each (In a Pack of 25)
Enheter
0603 (1608M) - 120Ω - - - 2A Chip Ferrite Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - EMI Suppression Filter, Power Supplies
RS-artikelnummer 792-6255
Tillv. art.nrBLM18HE102SN1D
VarumärkeMurata
0,889 kr
Each (In a Bag of 25)
Enheter
0603 (1608M) - 1000Ω - - - 600mA Chip Ferrite Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - EMI Suppression Filter, GHz Band High-Speed Signal Line
RS-artikelnummer 125-3154
Tillv. art.nrBLM21PG331SN1D
VarumärkeMurata
0,197 kr
Each (On a Reel of 4000)
Enheter
0805 (2012M) - 330Ω - - - 1.5A Chip Bead 2 x 1.25 x 0.85mm 2mm 1.25mm 0.85mm - EMI Suppression, Power Supplies
RS-artikelnummer 104-8526
Tillv. art.nrBLM15PX601SN1D
VarumärkeMurata
0,314 kr
Each (In a Pack of 200)
Enheter
0402 (1005M) - 600Ω - - - 900mA Chip Bead 1 x 0.5 x 0.5mm 1mm 0.5mm 0.5mm - General Use
RS-artikelnummer 167-4196
Tillv. art.nrBLM18AG151SN1D
VarumärkeMurata
0,146 kr
Each (On a Reel of 4000)
Enheter
0603 (1608M) - 150Ω - - - 700mA Chip Ferrite Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - EMI Suppression Filter, General Use
RS-artikelnummer 724-1532
Tillv. art.nrBLM21PG221SN1D
VarumärkeMurata
0,612 kr
Each (In a Pack of 25)
Enheter
0805 (2012M) - 220Ω - - - 2A Chip Ferrite Bead 2 x 1.25 x 0.85mm 2mm 1.25mm 0.85mm - EMI Suppression Filter, Power Supplies
RS-artikelnummer 724-1611
Tillv. art.nrBL02RN2R1N1A
VarumärkeMurata
1,476 kr
Each (In a Pack of 25)
Enheter
Radial - - - - - 6A EMI Suppression 9 x 3.4 x 7.5mm 9mm 3.4mm 7.5mm - -
RS-artikelnummer 792-6312
Tillv. art.nrBLM21PG221SH1D
VarumärkeMurata
0,744 kr
Each (In a Bag of 25)
Enheter
0805 (2012M) - 220Ω - - - 2A Chip Ferrite Bead 2 x 1.25 x 0.85mm 2mm 1.25mm 0.85mm - EMI Suppression Filter, Power Supplies
RS-artikelnummer 169-2757
Tillv. art.nrBLM03AG102SN1D
VarumärkeMurata
0,316 kr
Each (On a Reel of 15000)
Enheter
0603 (1608M) - 1000Ω - - - 100mA Chip Bead 0.6 x 0.3 x 0.3mm 0.6mm 0.3mm 0.3mm - General Use
RS-artikelnummer 166-9856
Tillv. art.nrBLM18PG300SN1D
VarumärkeMurata
0,153 kr
Each (On a Reel of 4000)
Enheter
0603 (1608M) - 30Ω - - - 1A Chip Ferrite Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - EMI Suppression Filter, Power Supplies
RS-artikelnummer 871-2023
Tillv. art.nrBLM15BD182SN1D
VarumärkeMurata
0,215 kr
Each (In a Bag of 250)
Enheter
0402 (1005M) - 1800Ω - - - 100mA Ferrite Bead 1 x 0.5 x 0.5mm 1mm 0.5mm 0.5mm - High Speed Signal Lines