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
THB13.115
Each: (In a Pack of 20)
Units
Radial 920Ω 961Ω - - - 3A Ferrite Bead 6 (Dia.) x 10mm 10mm - 10mm 6mm Protection Against Radio Frequency Interferences of Components on PCB's of PC's, Text Processing and Other Digital Devices
RS Stock No. 888-3418
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.28B0250-100
THB4.001
Each: (In a Pack of 500)
Units
0250 90Ω 182Ω 300Ω - - - Cylindrical EMI Core 6.35 x 15.88mm 15.88mm - - 6.35mm EMI Suppression
RS Stock No. 161-8051
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BLM18PG600SN1D
Brand :Murata
THB0.872
Each (On a Reel of 4000)
Units
0603 (1608M) - 60Ω - - - 500mA Chip Ferrite Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - EMI Suppression, Power Supplies
RS Stock No. 724-1429
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BLM18PG600SN1D
Brand :Murata
THB1.828
Each: (In a Pack of 25)
Units
0603 (1608M) - 60Ω - - - 500mA Chip Ferrite Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - EMI Suppression Filter, Power Supplies
RS Stock No. 172-9951
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2743001112
Brand :Fair-Rite
THB1.687
Each (On a Reel of 4500)
Units
Axial 61Ω - - - - - Bead 3.5 (Dia.) x 4.45mm 4.45mm - - 3.5mm EMI Suppression
RS Stock No. 467-3292
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2743001112
Brand :Fair-Rite
THB2.308
Each: (In a Pack of 50)
Units
Axial 61Ω - - - - - Bead 3.5 (Dia.) x 4.45mm 4.45mm - - 3.5mm EMI Suppression
RS Stock No. 747-4710
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BLM18KG121TN1D
Brand :Murata
THB1.271
Each (In a Bag of 100)
Units
0603 (1608M) - 120Ω - - - 3A 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 Stock No. 167-4201
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BLM18EG121SN1D
Brand :Murata
THB2.216
Each (On a Reel of 4000)
Units
0603 (1608M) - 120Ω - - 145Ω 2A Chip Ferrite Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - EMI Suppression Filter, GHz Band General Use (Low DC Resistance Type)
RS Stock No. 792-6249
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BLM18EG121SN1D
Brand :Murata
THB4.137
Each (In a Bag of 25)
Units
0603 (1608M) - 120Ω - - 145Ω 2A Chip Ferrite Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - EMI Suppression Filter, GHz Band General Use (Low DC Resistance Type)
RS Stock No. 619-7554
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BLM18TG121TN1D
Brand :Murata
THB0.981
Each: (In a Pack of 250)
Units
0603 (1608M) - 120Ω - - - 200mA Chip Ferrite Bead 1.6 x 0.8 x 0.6mm 1.6mm 0.8mm 0.6mm - EMI Suppression Filter, General Use
RS Stock No. 741-3197
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MPZ1608Y151BT
Brand :TDK
THB1.937
Each (In a Bag of 100)
Units
0603 (1608M) - 150Ω - - - 1.8A Chip Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - -
RS Stock No. 124-1519
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.7427501
THB16.023
Each: (In a Pack of 20)
Units
Axial 598Ω 800Ω - - - 3A Ferrite Bead 6 (Dia.) x 10mm 10mm - 10mm 6mm Digital Devices, PCB, Radio Frequency Interferences, Text Processing
RS Stock No. 122-5334
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BLM31PG121SH1L
Brand :Murata
THB3.486
Each (On a Reel of 3000)
Units
1206 (3216M) - 120Ω - - - 3.5A Chip Ferrite Bead 3.2 x 1.6 x 1.1mm 3.2mm 1.6mm 1.1mm - Automotive, Powertrain, Safety
RS Stock No. 144-9870
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.742792625
THB3.899
Each (On a Reel of 4000)
Units
0603 - 120Ω - - - 2A EMI Suppression 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - Suppression Components
RS Stock No. 604-2246
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MPZ2012S601AT
Brand :TDK
THB2.454
Each: (In a Pack of 10)
Units
0805 - - - - - - Chip Bead 2 x 1.25 x 0.85mm 2mm 1.25mm 0.85mm - Power Line
RS Stock No. 724-1380
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BLM18PG121SN1D
Brand :Murata
THB1.816
Each: (In a Pack of 25)
Units
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 Stock No. 604-2202
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MPZ2012S101AT
Brand :TDK
THB2.789
Each: (In a Pack of 10)
Units
0805 - - - - - - Chip Bead 2 x 1.25 x 0.85mm 2mm 1.25mm 0.85mm - Power Line
RS Stock No. 166-9548
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BLM18TG121TN1D
Brand :Murata
THB0.508
Each (On a Reel of 10000)
Units
0603 (1608M) - 120Ω - - - 200mA Chip Ferrite Bead 1.6 x 0.8 x 0.6mm 1.6mm 0.8mm 0.6mm - EMI Suppression Filter, General Use
RS Stock No. 787-9995
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.742792625
THB6.542
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. 741-3129
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MMZ1608R102AT
Brand :TDK
THB1.166
Each (In a Bag of 100)
Units
0603 (1608M) - 1000Ω - - - 400mA Chip Bead 1.6 x 0.8 x 0.8mm 1.6mm 0.8mm 0.8mm - Signal Line