We offer ferrite beads with impedance ratings from 0.15ohm to 15kohm, and DC current ratings from 50mA to 20A

What is a Ferrite Bead?

Ferrite beads or chip inductor beads are passive electronic components that can suppress high frequency signals on a power supply line. They are normally placed around a power/ground line pair that is incoming to a particular device, such as the power cord for your laptop. These beads work according to Faraday’s Law: the magnetic core around a conductor induces a back EMF in the presence of a high frequency signal, essentially attenuating the ferrite frequency response.

Ferrites are magnetic materials, and placing this material in a ferrite clamp around the power supply/ground line provides a source of inductive impedance for signals passing through the line.

Ferrite bead model

A ferrite bead can be modelled as capacitors and inductors, plus a resistor in parallel with this RLC network wired with a series resistor. The series resistor quantifies the device’s resistance to DC currents. The inductor in this model represents a ferrite beads primary function of attenuating high-frequency signals, i.e., providing inductive impedance through Faraday’s Law. The parallel resistor in this model accounts for losses in eddy currents that are induced within the ferrite bead at high frequencies. Finally, the capacitor in this model accounts for the component’s natural parasitic capacitance.

Fair-Rite, for example, offers a broad selection of cost-effective multi-layer chip inductor beads to suppress conducted EMI signals. Chip inductor beads can be used in an array of devices such as cellular phones, computers, laptops, pagers, etc. The small package sizes accommodate automated placements and allow for a dense packaging of circuit boards.

Chip Inductor Beads are available in standard, high and GHz signal speeds.

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Ferrite Bead Case / Package
Impedance
Inner Diameter
DC Current Rating
Product Range
Frequency Min
Frequency Max
DC Resistance Max
DC Resistance
Impedance Tolerance
Product Length
Product Width
Product Height
Ferrite Mounting
Operating Temperature Min
Operating Temperature Max
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4172870RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
kr 0.137
1000+
kr 0.125
2000+
kr 0.117
Min: 500 / Mult: 5
0805 [2012 Metric]
1kohm
-
300mA
AFBC-Q0805G Series
-
-
0.5ohm
-
± 25%
2mm
1.25mm
1.25mm
SMD
-55°C
150°C
AEC-Q200
3996486RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
kr 0.454
1500+
kr 0.387
3000+
kr 0.302
Min: 500 / Mult: 5
1206 [3216 Metric]
750ohm
-
350mA
BMC Series
-
-
0.3ohm
-
± 25%
3.2mm
1.6mm
1.1mm
SMD
-55°C
125°C
-
4142759

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 1.240
100+
kr 1.040
500+
kr 0.843
2500+
kr 0.584
7500+
kr 0.545
Min: 10 / Mult: 10
0201 [0603 Metric]
300ohm
-
400mA
WE-CBA Series
-
-
0.61ohm
-
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
AEC-Q200
4015937RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
kr 0.242
1500+
kr 0.218
Min: 500 / Mult: 5
1206 [3216 Metric]
300ohm
-
700mA
MG Series
-
-
0.15ohm
-
± 25%
3.2mm
1.6mm
1.1mm
SMD
-55°C
125°C
-
4236009

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 1.720
100+
kr 1.290
500+
kr 0.948
2500+
kr 0.707
5000+
kr 0.674
Min: 10 / Mult: 10
0402 [1005 Metric]
33ohm
-
3A
EMIFIL BLM15PX Series
-
-
0.022ohm
-
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
150°C
AEC-Q200
4236009RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
kr 1.290
500+
kr 0.948
2500+
kr 0.707
5000+
kr 0.674
Min: 100 / Mult: 10
0402 [1005 Metric]
33ohm
-
3A
EMIFIL BLM15PX Series
-
-
0.022ohm
-
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
150°C
AEC-Q200
1669731

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 0.352
100+
kr 0.284
500+
kr 0.262
1000+
kr 0.236
2000+
kr 0.216
More Pricing...
Min: 10 / Mult: 10
0805 [2012 Metric]
30ohm
-
1.5A
MMZ Series
-
-
0.05ohm
-
± 25%
2mm
1.25mm
0.85mm
SMD
-55°C
125°C
-
2483717

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 0.888
100+
kr 0.791
500+
kr 0.619
1000+
kr 0.535
2000+
kr 0.519
More Pricing...
Min: 10 / Mult: 10
0805 [2012 Metric]
10ohm
-
6A
BMB-P Series
-
-
0.01ohm
-
± 25%
2mm
1.2mm
0.9mm
SMD
-55°C
125°C
-
2483676

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 0.669
100+
kr 0.495
500+
kr 0.446
1000+
kr 0.328
2000+
kr 0.307
Min: 10 / Mult: 10
0805 [2012 Metric]
1.2kohm
-
100mA
BMB-A Series
-
-
0.8ohm
-
± 25%
2mm
1.2mm
0.9mm
SMD
-55°C
125°C
-
2846723

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 0.769
100+
kr 0.583
Min: 10 / Mult: 10
0603 [1608 Metric]
220ohm
-
1.5A
Z-PWZ Series
-
-
0.07ohm
-
± 25%
1.6mm
0.8mm
0.8mm
SMD
-40°C
125°C
-
2483720

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 0.742
100+
kr 0.660
500+
kr 0.517
Min: 10 / Mult: 10
0805 [2012 Metric]
60ohm
-
3A
BMB-P Series
-
-
0.025ohm
-
± 25%
2mm
1.2mm
0.9mm
SMD
-55°C
125°C
-
2483722

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 0.888
100+
kr 0.791
500+
kr 0.619
2000+
kr 0.519
4000+
kr 0.463
Min: 10 / Mult: 10
0805 [2012 Metric]
120ohm
-
3A
BMB-P Series
-
-
0.04ohm
-
± 25%
2mm
1.2mm
0.9mm
SMD
-55°C
125°C
-
2483714

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 0.641
100+
kr 0.517
500+
kr 0.443
1000+
kr 0.404
Min: 10 / Mult: 10
0603 [1608 Metric]
300ohm
-
2A
BMB-P Series
-
-
0.1ohm
-
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
3471094

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 0.955
100+
kr 0.634
500+
kr 0.555
1000+
kr 0.417
Min: 10 / Mult: 10
0603 [1608 Metric]
1kohm
-
200mA
EMIFIL BLM18AG Series
-
-
0.7ohm
-
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
AEC-Q200
3528335

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 0.574
Min: 10 / Mult: 10
0603 [1608 Metric]
600ohm
-
300mA
Z-SMS Series
-
-
0.4ohm
-
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
2483698

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 0.742
100+
kr 0.660
500+
kr 0.517
1000+
kr 0.485
2000+
kr 0.457
Min: 10 / Mult: 10
0805 [2012 Metric]
200ohm
-
200mA
BMB-B Series
-
-
0.5ohm
-
± 25%
2mm
1.2mm
0.9mm
SMD
-55°C
125°C
-
2483710

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 0.641
100+
kr 0.517
500+
kr 0.443
1000+
kr 0.404
2000+
kr 0.380
Min: 10 / Mult: 10
0603 [1608 Metric]
60ohm
-
3A
BMB-P Series
-
-
0.04ohm
-
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
2483715

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 0.593
100+
kr 0.527
500+
kr 0.451
1000+
kr 0.387
Min: 10 / Mult: 10
0603 [1608 Metric]
470ohm
-
1.5A
BMB-P Series
-
-
0.15ohm
-
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
3812687

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 1.100
100+
kr 0.925
500+
kr 0.746
1000+
kr 0.591
2000+
kr 0.547
Min: 10 / Mult: 10
0805 [2012 Metric]
7ohm
-
3A
WE-CBF Series
-
-
0.03ohm
-
± 25%
2mm
1.2mm
0.9mm
SMD
-55°C
125°C
AEC-Q200
2483715RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
kr 0.593
100+
kr 0.527
500+
kr 0.451
1000+
kr 0.387
Min: 10 / Mult: 10
0603 [1608 Metric]
470ohm
-
1.5A
BMB-P Series
-
-
0.15ohm
-
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
2840090RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
kr 0.097
Min: 100 / Mult: 10
0201 [0603 Metric]
240ohm
-
200mA
EMIFIL BLM03BD Series
-
-
0.8ohm
-
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
-
2840090

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 0.134
100+
kr 0.097
Min: 10 / Mult: 10
0201 [0603 Metric]
240ohm
-
200mA
EMIFIL BLM03BD Series
-
-
0.8ohm
-
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
-
3605006

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
kr 1.000
500+
kr 0.569
Min: 10 / Mult: 10
0402 [1005 Metric]
1.8kohm
-
100mA
HZ Series
-
-
1.4ohm
-
-
1.01mm
0.5mm
0.5mm
SMD
-40°C
125°C
-
3605006RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
kr 0.569
Min: 500 / Mult: 10
0402 [1005 Metric]
1.8kohm
-
100mA
HZ Series
-
-
1.4ohm
-
-
1.01mm
0.5mm
0.5mm
SMD
-40°C
125°C
-
1635709RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
kr 1.190
500+
kr 0.843
1000+
kr 0.754
Min: 100 / Mult: 10
0805 [2012 Metric]
40ohm
-
500mA
WE-CBF Series
-
-
0.15ohm
-
± 25%
2mm
1.2mm
0.9mm
SMD
-55°C
125°C
AEC-Q200
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