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
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Ferrite Mounting
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3678440

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Kč2.215
100+
Kč1.475
500+
Kč1.292
2500+
Kč0.838
7500+
Kč0.770
Min: 10 / Mult: 10
1005 [0402 Metric]
18ohm
-
1.2A
BLM02KX Series
-
-
0.045ohm
-
± 25%
0.4mm
0.2mm
0.3mm
SMD
-55°C
125°C
-
3605001

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Kč3.511
250+
Kč2.260
1000+
Kč1.813
5000+
Kč1.023
10000+
Kč1.003
Min: 10 / Mult: 10
0603 [1608 Metric]
26ohm
-
6A
HI Series
-
-
0.007ohm
-
± 25%
1.6mm
0.8mm
0.8mm
SMD
-40°C
125°C
-
3678447RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Kč0.665
2500+
Kč0.567
Min: 500 / Mult: 10
0201 [0603 Metric]
600ohm
-
150mA
EMIFIL BLM03HG Series
-
-
1.6ohm
-
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
AEC-Q200
3678446RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Kč0.665
2500+
Kč0.567
7500+
Kč0.434
Min: 500 / Mult: 10
0201 [0603 Metric]
1.2kohm
-
100mA
EMIFIL BLM03HG Series
-
-
3.5ohm
-
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
AEC-Q200
3352539

RoHS

Date/Lot Code

Each (Supplied on Full Reel)
Full Reel
15000+
Kč0.858
Min: 15000 / Mult: 15000
0201 [0603 Metric]
330ohm
-
200mA
EMIFIL BLM03HD Series
-
-
1ohm
-
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
-
3386796

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Kč1.219
100+
Kč0.853
500+
Kč0.670
1000+
Kč0.589
2000+
Kč0.522
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Min: 10 / Mult: 10
0603 [1608 Metric]
470ohm
-
500mA
MMZ Series
-
-
0.3ohm
-
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
AEC-Q200
3386770RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Kč0.692
2500+
Kč0.477
5000+
Kč0.461
Min: 500 / Mult: 10
0402 [1005 Metric]
80ohm
-
500mA
MMZ Series
-
-
0.12ohm
-
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3650626RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Kč0.622
1000+
Kč0.527
2000+
Kč0.504
4000+
Kč0.482
Min: 500 / Mult: 10
0603 [1608 Metric]
120ohm
-
400mA
MMZ Series
-
-
0.3ohm
-
± 25%
1.6mm
0.8mm
0.6mm
SMD
-55°C
125°C
-
3551405RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Kč0.795
2500+
Kč0.630
5000+
Kč0.582
Min: 500 / Mult: 10
0402 [1005 Metric]
220ohm
-
300mA
WE-CBA Series
-
-
0.35ohm
-
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3551401RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Kč0.795
2500+
Kč0.630
5000+
Kč0.582
Min: 500 / Mult: 10
0402 [1005 Metric]
120ohm
-
500mA
WE-CBA Series
-
-
0.2ohm
-
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3678444RL

RoHS

Each (Supplied on Cut Tape)
Cut Tape
500+
Kč0.655
2500+
Kč0.557
7500+
Kč0.426
Min: 500 / Mult: 10
0201 [0603 Metric]
400ohm
-
125mA
EMIFIL BLM03HB Series
-
-
2.8ohm
-
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
AEC-Q200
3386770

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
10+
Kč1.003
100+
Kč0.765
500+
Kč0.692
2500+
Kč0.477
5000+
Kč0.461
Min: 10 / Mult: 10
0402 [1005 Metric]
80ohm
-
500mA
MMZ Series
-
-
0.12ohm
-
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3386406

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
10+
Kč3.486
100+
Kč2.583
500+
Kč2.107
1000+
Kč1.728
2000+
Kč1.600
Min: 10 / Mult: 10
0603 [1608 Metric]
120ohm
-
1.35A
MAF Series
-
-
0.105ohm
-
-
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
3650632RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Kč0.740
1000+
Kč0.592
2000+
Kč0.537
4000+
Kč0.482
Min: 500 / Mult: 10
0603 [1608 Metric]
470ohm
-
300mA
MMZ Series
-
-
0.7ohm
-
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
AEC-Q200
3551402RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Kč0.700
2500+
Kč0.582
5000+
Kč0.537
Min: 500 / Mult: 10
0402 [1005 Metric]
180ohm
-
400mA
WE-CBA Series
-
-
0.3ohm
-
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3678444

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Kč1.575
100+
Kč0.750
500+
Kč0.655
2500+
Kč0.557
7500+
Kč0.426
Min: 10 / Mult: 10
0201 [0603 Metric]
400ohm
-
125mA
EMIFIL BLM03HB Series
-
-
2.8ohm
-
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
AEC-Q200
3352570

RoHS

Date/Lot Code

Each (Supplied on Full Reel)
Full Reel
10000+
Kč0.248
Min: 10000 / Mult: 10000
0402 [1005 Metric]
10ohm
-
1.74A
EMIFIL BLM15AX Series
-
-
0.015ohm
-
± 5ohm
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3551407RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Kč0.795
2500+
Kč0.630
5000+
Kč0.582
10000+
Kč0.537
Min: 500 / Mult: 10
0402 [1005 Metric]
300ohm
-
200mA
WE-CBA Series
-
-
0.7ohm
-
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3652383RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Kč0.920
2500+
Kč0.707
5000+
Kč0.645
Min: 500 / Mult: 10
0402 [1005 Metric]
180ohm
-
1.2A
EMIFIL BLM15PE Series
-
-
0.14ohm
-
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3639645RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
50+
Kč4.615
250+
Kč4.038
500+
Kč2.859
1500+
Kč2.608
Min: 100 / Mult: 5
0806 [2016 Metric]
-
-
3.7A
NFZ2MSD Series
-
-
0.033ohm
-
-
2mm
1.6mm
1.2mm
SMD
-40°C
125°C
-
3386796RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Kč0.670
1000+
Kč0.589
2000+
Kč0.522
4000+
Kč0.451
Min: 500 / Mult: 10
0603 [1608 Metric]
470ohm
-
500mA
MMZ Series
-
-
0.3ohm
-
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
AEC-Q200
3652383

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Kč2.378
100+
Kč1.131
500+
Kč0.920
2500+
Kč0.707
5000+
Kč0.645
Min: 10 / Mult: 10
0402 [1005 Metric]
180ohm
-
1.2A
EMIFIL BLM15PE Series
-
-
0.14ohm
-
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3639645

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
5+
Kč6.922
50+
Kč4.615
250+
Kč4.038
500+
Kč2.859
1500+
Kč2.608
Min: 5 / Mult: 5
0806 [2016 Metric]
-
-
3.7A
NFZ2MSD Series
-
-
0.033ohm
-
-
2mm
1.6mm
1.2mm
SMD
-40°C
125°C
-
3605001RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
250+
Kč2.260
1000+
Kč1.813
5000+
Kč1.023
10000+
Kč1.003
Min: 500 / Mult: 10
0603 [1608 Metric]
26ohm
-
6A
HI Series
-
-
0.007ohm
-
± 25%
1.6mm
0.8mm
0.8mm
SMD
-40°C
125°C
-
3678440RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Kč1.292
2500+
Kč0.838
7500+
Kč0.770
Min: 500 / Mult: 10
1005 [0402 Metric]
18ohm
-
1.2A
BLM02KX Series
-
-
0.045ohm
-
± 25%
0.4mm
0.2mm
0.3mm
SMD
-55°C
125°C
-
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