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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3650646RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM0.252
Min: 500 / Mult: 10
0201 [0603 Metric]
33ohm
1.6A
MPZ-H Series
0.05ohm
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
-
3650646

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.325
100+
RM0.252
Min: 10 / Mult: 10
0201 [0603 Metric]
33ohm
1.6A
MPZ-H Series
0.05ohm
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
-
4141734

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.522
100+
RM0.296
500+
RM0.214
1000+
RM0.188
2000+
RM0.175
Min: 10 / Mult: 10
0603 [1608 Metric]
170ohm
2A
-
0.05ohm
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
4015954RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
RM0.416
1000+
RM0.357
2000+
RM0.347
Min: 500 / Mult: 5
1806 [4516 Metric]
80ohm
3A
MH Series
0.04ohm
± 25%
4.5mm
1.6mm
1.6mm
SMD
-55°C
125°C
-
4015954

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
RM1.110
50+
RM0.855
250+
RM0.466
500+
RM0.416
1000+
RM0.357
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Min: 5 / Mult: 5
1806 [4516 Metric]
80ohm
3A
MH Series
0.04ohm
± 25%
4.5mm
1.6mm
1.6mm
SMD
-55°C
125°C
-
3996422

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Each (Supplied on Cut Tape)
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10+
RM0.263
100+
RM0.221
500+
RM0.207
2500+
RM0.154
5000+
RM0.144
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Min: 10 / Mult: 10
0402 [1005 Metric]
1kohm
50mA
BMC Series
1.5ohm
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
-
3996422RL

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Each (Supplied on Cut Tape)
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Packaging Options
500+
RM0.207
2500+
RM0.154
5000+
RM0.144
10000+
RM0.134
50000+
RM0.131
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Min: 500 / Mult: 10
0402 [1005 Metric]
1kohm
50mA
BMC Series
1.5ohm
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
-
4141734RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
RM0.214
1000+
RM0.188
2000+
RM0.175
Min: 500 / Mult: 10
0603 [1608 Metric]
170ohm
2A
-
0.05ohm
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
4244739

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.635
250+
RM0.402
1000+
RM0.394
5000+
RM0.386
10000+
RM0.378
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Min: 10 / Mult: 10
1005 [0402 Metric]
240ohm
200mA
MMZ Series
1ohm
± 25%
0.4mm
0.2mm
0.2mm
SMD
-55°C
125°C
-
4244739RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
RM0.635
250+
RM0.402
1000+
RM0.394
5000+
RM0.386
10000+
RM0.378
More Pricing...
Min: 100 / Mult: 10
1005 [0402 Metric]
240ohm
200mA
MMZ Series
1ohm
± 25%
0.4mm
0.2mm
0.2mm
SMD
-55°C
125°C
-
2066855

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
RM3.130
50+
RM2.990
250+
RM2.780
500+
RM2.700
1000+
RM2.570
More Pricing...
Min: 5 / Mult: 5
1812 [4532 Metric]
100ohm
8A
WE-MPSB Series
6000µohm
± 25%
4.5mm
3.2mm
2.3mm
SMD
-55°C
125°C
AEC-Q200
1781094

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.286
100+
RM0.198
500+
RM0.157
1000+
RM0.125
2000+
RM0.114
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Min: 10 / Mult: 10
0603 [1608 Metric]
600ohm
1.3A
EMIFIL BLM18KG Series
0.15ohm
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
1748581

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM1.080
100+
RM0.988
500+
RM0.888
1000+
RM0.836
2000+
RM0.832
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Min: 10 / Mult: 10
0603 [1608 Metric]
600ohm
500mA
WE-CBF HF Series
0.35ohm
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
2292441

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.239
250+
RM0.195
1000+
RM0.192
5000+
RM0.170
10000+
RM0.166
More Pricing...
Min: 10 / Mult: 10
0805 [2012 Metric]
150ohm
800mA
LI Series
0.15ohm
-
2mm
1.25mm
1.25mm
SMD
-40°C
125°C
-
2292460

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Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.745
250+
RM0.447
1000+
RM0.346
5000+
RM0.260
10000+
RM0.255
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Min: 10 / Mult: 10
0805 [2012 Metric]
600ohm
1.5A
MI Series
0.1ohm
-
2mm
1.25mm
1.25mm
SMD
-40°C
125°C
-
1515723

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.758
100+
RM0.534
500+
RM0.405
1000+
RM0.354
2000+
RM0.311
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Min: 10 / Mult: 10
0603 [1608 Metric]
600ohm
500mA
EMIFIL BLM18EG Series
0.35ohm
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
2292412

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.258
250+
RM0.190
1000+
RM0.187
5000+
RM0.183
10000+
RM0.179
More Pricing...
Min: 10 / Mult: 10
0805 [2012 Metric]
600ohm
500mA
HZ Series
0.3ohm
-
2mm
1.25mm
1.25mm
SMD
-40°C
125°C
-
3056533

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.813
100+
RM0.518
500+
RM0.370
1000+
RM0.312
2000+
RM0.289
More Pricing...
Min: 10 / Mult: 10
0805 [2012 Metric]
1kohm
200mA
MLS Series
0.5ohm
± 25%
2mm
1.25mm
0.9mm
SMD
-55°C
125°C
-
9526919

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
RM1.850
50+
RM1.020
250+
RM0.768
500+
RM0.671
1000+
RM0.585
More Pricing...
Min: 5 / Mult: 5
1806 [4516 Metric]
75ohm
3.5A
EMIFIL BLM41PG Series
0.015ohm
-
4.5mm
1.6mm
1.6mm
SMD
-55°C
125°C
-
1781090

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.272
100+
RM0.198
500+
RM0.152
1000+
RM0.125
2000+
RM0.114
More Pricing...
Min: 10 / Mult: 10
0603 [1608 Metric]
220ohm
2.2A
EMIFIL BLM18KG Series
0.05ohm
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
9526900

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
RM1.850
50+
RM0.993
250+
RM0.750
500+
RM0.657
1000+
RM0.603
More Pricing...
Min: 5 / Mult: 5
1806 [4516 Metric]
60ohm
6A
EMIFIL BLM41PG Series
9000µohm
-
4.5mm
1.6mm
1.6mm
SMD
-55°C
125°C
-
1515741

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.276
100+
RM0.194
500+
RM0.152
1000+
RM0.134
2000+
RM0.116
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Min: 10 / Mult: 10
0603 [1608 Metric]
30ohm
1A
EMIFIL BLM18PG Series
0.05ohm
-
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
2292457

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.848
250+
RM0.517
1000+
RM0.412
5000+
RM0.321
10000+
RM0.315
More Pricing...
Min: 10 / Mult: 10
0805 [2012 Metric]
1kohm
1A
MI Series
0.15ohm
-
2mm
1.25mm
1.25mm
SMD
-40°C
125°C
-
1781089

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.286
100+
RM0.198
500+
RM0.157
1000+
RM0.130
2000+
RM0.109
More Pricing...
Min: 10 / Mult: 10
0603 [1608 Metric]
120ohm
3A
EMIFIL BLM18KG Series
0.03ohm
± 25%
1.6mm
0.8mm
0.6mm
SMD
-55°C
125°C
-
1515762

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.198
100+
RM0.144
500+
RM0.111
2500+
RM0.074
5000+
RM0.070
More Pricing...
Min: 10 / Mult: 10
0402 [1005 Metric]
600ohm
300mA
EMIFIL BLM15AG Series
0.6ohm
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
-
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