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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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3678440

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
€0.163
100+
€0.113
500+
€0.0857
2500+
€0.0692
7500+
€0.0517
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+
€0.123
250+
€0.0728
1000+
€0.0567
5000+
€0.0429
10000+
€0.042
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+
€0.0933
2500+
€0.0858
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+
€0.127
2500+
€0.0858
7500+
€0.0841
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+
€0.0802
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+
€0.0485
100+
€0.034
500+
€0.0267
1000+
€0.0235
2000+
€0.0199
More Pricing...
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+
€0.0267
2500+
€0.0184
5000+
€0.018
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
3551384

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
10+
€0.0778
100+
€0.050
500+
€0.0452
1000+
€0.040
2000+
€0.0384
More Pricing...
Min: 10 / Mult: 10
0603 [1608 Metric]
120ohm
-
500mA
WE-CBA Series
-
-
0.2ohm
-
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
AEC-Q200
3650626RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
€0.0248
1000+
€0.021
2000+
€0.0201
4000+
€0.0192
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
-
3551401RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
€0.0336
2500+
€0.0247
5000+
€0.0227
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
3551405RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
€0.0336
2500+
€0.0247
5000+
€0.0227
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
3678444RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
€0.118
2500+
€0.0938
7500+
€0.0771
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+
€0.0505
100+
€0.0352
500+
€0.0267
2500+
€0.0184
5000+
€0.018
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+
€0.150
100+
€0.110
500+
€0.0838
1000+
€0.0701
2000+
€0.0687
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+
€0.0314
1000+
€0.0254
2000+
€0.0211
4000+
€0.0167
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
3678444

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
€0.178
100+
€0.157
500+
€0.118
2500+
€0.0938
7500+
€0.0771
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+
€0.0129
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
3551402RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
€0.0336
2500+
€0.0247
5000+
€0.0227
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
3551407RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
€0.0336
2500+
€0.0247
5000+
€0.0227
10000+
€0.0211
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+
€0.0838
2500+
€0.0649
5000+
€0.0636
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
3551406RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
€0.0336
2500+
€0.0247
5000+
€0.0227
Min: 500 / Mult: 10
0402 [1005 Metric]
600ohm
-
300mA
WE-CBA Series
-
-
0.6ohm
-
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3386406RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
€0.0838
1000+
€0.0701
2000+
€0.0687
Min: 500 / Mult: 10
0603 [1608 Metric]
120ohm
-
1.35A
MAF Series
-
-
0.105ohm
-
-
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
3386796RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
€0.0267
1000+
€0.0235
2000+
€0.0199
4000+
€0.0162
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+
€0.106
100+
€0.100
500+
€0.0838
2500+
€0.0649
5000+
€0.0636
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
3639645RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
50+
€0.224
250+
€0.179
500+
€0.175
1500+
€0.159
3000+
€0.142
Min: 100 / Mult: 5
0806 [2016 Metric]
-
-
3.7A
NFZ2MSD Series
-
-
0.033ohm
-
-
2mm
1.6mm
1.2mm
SMD
-40°C
125°C
-
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