Ferrite Beads

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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

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รายละเอียดสินค้า / Description ราคา / 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. 124-1521
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.74275043
THB9.08
Each: (In a Pack of 20)
Units
Radial 920Ω 961Ω - - - 3A Ferrite Bead 6 (Dia.) x 10mm 10mm - 10mm 6mm General Electronics
RS Stock No. 124-1519
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.7427501
THB11.222
Each: (In a Pack of 20)
Units
Axial 598Ω 800Ω - - - 3A Ferrite Bead 6 (Dia.) x 10mm - - 10mm 6mm Digital Devices, PCB, Radio Frequency Interferences, Text Processing
RS Stock No. 144-9798
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.74279202
THB20,743.00
1 Reel of 4000
Reel(s)
805 - 120Ω - - - 500mA Ferrite Bead 2 x 1.2 x 0.9mm 2mm 1.2mm 0.9mm - Anti EMI, Control Signals, DC/DC Converter, Fast Bus Signals, HDD, High Current, High Frequency, High Speed, Line Filter, LVDS, Power Supply, RS232, RS422, USB 2.0
RS Stock No. 124-1862
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.74279202
THB6.28
Each: (In a Pack of 50)
Units
0805 (2012M) - 120Ω - - - 500mA Ferrite Bead 2 x 1.2 x 0.9mm 2mm 1.2mm 0.9mm - Anti EMI, Control Signals, DC/DC Converter, Fast Bus Signals, HDD, High Current, High Frequency, High Speed, Line Filter, LVDS, Power Supply, RS232, RS422, USB 2.0
RS Stock No. 787-9995
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.742792625
THB5.407
Each (In a Bag of 10)
Units
0603 (1608M) - 120Ω - - - 2A EMI Suppression 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - Suppression Components
RS Stock No. 144-9870
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.742792625
THB16,657.00
1 Reel of 4000
Reel(s)
0603 - 120Ω - - - 2A EMI Suppression 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - Suppression Components
RS Stock No. 144-9858
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.74279223560
THB33,000.00
1 Reel of 2500
Reel(s)
1612 - 56Ω - - - 10A Bead 4.06 x 3.05 x 2.28mm 4.06mm 3.05mm 2.28mm - EMI Suppression, High Current
RS Stock No. 144-9845
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.742792031
THB6.914
Each (On a Reel of 4000)
Units
0805 - 300Ω - - - 3A EMI Suppression 2 x 1.2 x 0.9mm 2mm 1.2mm 0.9mm - Suppression Components
RS Stock No. 669-4092
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.742792031
THB6.867
Each: (In a Pack of 10)
Units
0805 (2012M) - 300Ω - - - 3A EMI Suppression 2 x 1.2 x 0.9mm 2mm 1.2mm 0.9mm - Suppression Components
RS Stock No. 124-1517
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.7427502
THB23.367
Each: (In a Pack of 20)
Units
Axial 670Ω 976Ω - - - 3A Ferrite Bead 6 (Dia.) x 10mm 10mm - 10mm 6mm General Electronics
RS Stock No. 163-3215
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.7427503
THB13.97
Each (In a Bag of 200)
Units
Axial - 600Ω - - - 200mA - 6 (Dia.) x 10mm 10mm - - 6mm General Electronics
RS Stock No. 260-6830
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.7427503
THB21.78
Each
Units
Axial - 600Ω - - - 200mA Bead 6 (Dia.) x 10mm 10mm - - 6mm General Electronics
RS Stock No. 749-8296
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.74279223560
THB14.916
Each (In a Bag of 5)
Units
1612 (4131M) - 56Ω - - - 10A Bead 4.06 x 3.05 x 2.28mm 4.06mm 3.05mm 2.28mm - EMI Suppression, High Current
RS Stock No. 124-1518
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.7427504
THB22.566
Each: (In a Pack of 20)
Units
Axial 702Ω 773Ω - - - 3A Ferrite Bead 6 (Dia.) x 10mm - - 10mm 6mm Digital Devices, PCB, Radio Frequency Interferences, Text Processing
RS Stock No. 144-9865
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.742792095
THB23,257.00
1 Reel of 4000
Reel(s)
0805 - 2700Ω - - - 200mA EMI Suppression 2 x 1.2 x 0.9mm 2mm 1.2mm 0.9mm - Suppression Components
RS Stock No. 787-9951
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.742792095
THB6.206
Each (In a Bag of 10)
Units
0805 (2012M) - 2700Ω - - - 200mA EMI Suppression 2 x 1.2 x 0.9mm 2mm 1.2mm 0.9mm - Suppression Components
RS Stock No. 669-4099
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.742792022
THB8.715
Each: (In a Pack of 10)
Units
0805 (2012M) - 220Ω - - - 2A EMI Suppression 2 x 1.2 x 0.9mm 2mm 1.2mm 0.9mm - Suppression Components
RS Stock No. 144-9745
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.74279274
THB4.552
Each (On a Reel of 10000)
Units
0402 - 30Ω - 43Ω - 300mA Ferrite Bead 1 x 0.5 x 0.5mm 1mm 0.5mm 0.5mm - Data Line Filter, Uncoupling of Distribution Voltage
RS Stock No. 788-0131
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.742863147
THB9.03
Each (In a Bag of 10)
Units
0603 (1608M) - 470Ω - - - 500mA EMI Suppression 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - Highspeed Bus Systems, Suppression Components
RS Stock No. 358-6579
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.742792514
THB10.535
Each: (In a Pack of 10)
Units
1812 (4532M) - 600Ω - - - 3A - 4.5 x 3.2 x 1.5mm 4.5mm 3.2mm 1.5mm - General Electronics