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

"

...
Read more Read less

Filters

Viewing 81 - 100 of 1240 products
Results per page
Description Price 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 Stock No. 163-3535
Mfr. Part No.742792035
SGD796.00
1 Reel of 4000
Reel(s)
0805 (2012M) - 300Ω - - - 300mA EMI Suppression 2 x 1.2 x 0.9mm 2mm 1.2mm 0.9mm - Suppression Components
RS Stock No. 888-3083
Mfr. Part No.HI2220R151R-10
SGD0.374
Each (In a Pack of 100)
units
2220 (5650M) 60Ω 150Ω - - 196Ω 5A Chip Bead 5.59 x 5.08 x 1.8mm 5.59mm 5.08mm 1.8mm - Automotive, DSC, Energy and Utilities, General Electronics, Laptop, LCD-TV, Networking Devices, PC, Portable Devices etc., Security
RS Stock No. 604-2167
Mfr. Part No.MPZ1608S601AT
BrandTDK
SGD0.116
Each (In a Pack of 10)
units
0603 - - - - - - Chip Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - Power Line
RS Stock No. 724-1542
Mfr. Part No.BLM21PG600SN1D
BrandMurata
SGD0.072
Each (In a Pack of 25)
units
0805 (2012M) - 60Ω - - - 3A Chip Ferrite Bead 2 x 1.25 x 0.85mm 2mm 1.25mm 0.85mm - EMI Suppression Filter, Power Supplies
RS Stock No. 167-4830
Mfr. Part No.BLM15AX100SN1D
BrandMurata
SGD186.45
Each (On a Reel of 10000)
units
0402 (1005M) - 10Ω - - - 1.74A Chip Ferrite Bead 1 x 0.5 x 0.5mm 1mm 0.5mm 0.5mm - EMI Suppression Filter, General Use
RS Stock No. 888-3345
Mfr. Part No.28A1507-0A2
SGD0.501
Each (In a Pack of 50)
units
1507 56Ω 123Ω 246Ω - - - Snap-On EMI Core, Split EMI Core 150 x 180mm 180mm - - 150mm EMI Suppression
RS Stock No. 724-1589
Mfr. Part No.BLM31PG500SN1L
BrandMurata
SGD0.169
Each (In a Pack of 25)
units
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 Stock No. 164-5696
Mfr. Part No.1879855-4
SGD821.90
Each (On a Reel of 10000)
units
0402 (1005M) - 120Ω - - - - Ferrite Bead 1 x 0.5 x 0.32mm 1mm 0.5mm 0.32mm - -
RS Stock No. 888-3395
Mfr. Part No.28A3851-0A2
SGD3.53
Each (In a Pack of 10)
units
3851 150Ω 260Ω 410Ω - - - Snap-On EMI Core, Split EMI Core 30 x 33.7 x 30mm 30mm 33.7mm 30mm - EMI Suppression
RS Stock No. 888-3080
Mfr. Part No.HI2220R301R-10
SGD0.531
Each (In a Pack of 50)
units
2220 (5650M) 100Ω 300Ω - - 100Ω 5A Chip Bead 5.59 x 5.08 x 3.2mm 5.59mm 5.08mm 3.2mm - Automotive, DSC, Energy and Utilities, General Electronics, Laptop, LCD-TV, Networking Devices, PC, Portable Devices etc., Security
RS Stock No. 163-4002
Mfr. Part No.74279225101
SGD3,852.25
1 Reel of 2500
Reel(s)
3312 - 100Ω - - - 10A Bead 8.5 x 3.05 x 2.28mm 8.5mm 3.05mm 2.28mm - EMI Suppression, High Current
RS Stock No. 863-0867
Mfr. Part No.74279220601
SGD0.369
Each (In a Bag of 10)
units
0805 (2012M) - 600Ω - - - 2.1A Ferrite Bead 2 x 1.2 x 0.9mm 2mm 0.9mm 1.2mm - DC/DC Converter, High Current, Power Supply
RS Stock No. 724-1598
Mfr. Part No.BLM41PG102SN1L
BrandMurata
SGD0.225
Each (In a Pack of 25)
units
1806 (4516M) - 1000Ω - - - 1.5A Chip Ferrite Bead 4.5 x 1.6 x 1.6mm 4.5mm 1.6mm 1.6mm - Power Supplies
RS Stock No. 163-3554
Mfr. Part No.742792609
SGD568.40
1 Reel of 4000
Reel(s)
0603 (1608M) - 30Ω - - - 3A EMI Suppression 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - Suppression Components
RS Stock No. 888-3569
Mfr. Part No.HFA259131-0A2
SGD6.03
Each
units
259131 - - 250Ω - - Snap-On EMI Core, Split EMI Core 29 x 32.5 x 29.62mm 29mm 32.5mm 29.62mm - EMI Suppression
RS Stock No. 166-9616
Mfr. Part No.BL01RN1A2A2B
BrandMurata
SGD0.132
Each (In a Bag of 500)
units
Axial - - - - - 7A EMI Suppression 3.6 (Dia.) x 5mm 5mm - 5mm 3.6mm -
RS Stock No. 888-3487
Mfr. Part No.28B0735-300
SGD0.379
Each (In a Pack of 100)
units
0735 73Ω 150Ω 270Ω - - - Cylindrical EMI Core 18.67 x 14.27mm 14.27mm - - 18.67mm EMI Suppression
RS Stock No. 166-9851
Mfr. Part No.BLM18HD601SN1D
BrandMurata
SGD0.063
Each (On a Reel of 4000)
units
0603 (1608M) - 600Ω - - - 100mA 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 Stock No. 683-5247
Mfr. Part No.WBC2.5/A-4B1
BrandFERROXCUBE
SGD0.871
Each (In a Pack of 10)
units
Axial - - - - - - Bead 6 (Dia.) x 10mm - - 10mm 6mm EMI Suppression, RFI Suppression
RS Stock No. 863-7095
Mfr. Part No.1879855-4
SGD0.102
Each (In a Bag of 100)
units
0402 (1005M) - 120Ω - - - - Ferrite Bead 1 x 0.5 x 0.32mm 1mm 0.5mm 0.32mm - General Purpose, High frequency
Related Products
BLM ferrite beads from Murata are ideal for ...
Description:
BLM ferrite beads from Murata are ideal for use in circuits with unstable ground lines as they do not require a ground connection. At noise frequencies, these ferrite beads are designed to function nearly as a resistor, leaving signal wave ...
The BMB B Series of beads cover a ...
Description:
The BMB B Series of beads cover a wide range of impedance and frequency characteristics. This series is suited to various applications. BMB-B Series minimise the attenuation of the signal wave form due to its sharp impedance characteristics thus effective ...
Excellent anti-EMI properties and low DC resistancePlaced very ...
Description:
Excellent anti-EMI properties and low DC resistancePlaced very close next to the interference source even with smallest size 0402, maximum impedance 1000ΩReliable Ni-Sn electrodes Ideal for data line filtering and voltage de-couplingHigh rated current up to 6A Recommended for reflow ...
This is a multilayered chip bead product which ...
Description:
This is a multilayered chip bead product which is magnetically shielded, allowing high density mountingReduced floating capacity between conductors has contributed to a dramatic improvement in high frequency characteristicsThe EMI suppression provided extends into the GHz rangeApplication include removal of ...