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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1781094

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.286
100+
RM0.198
500+
RM0.157
1000+
RM0.125
2000+
RM0.114
More Pricing...
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
-
2443229

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.245
100+
RM0.175
500+
RM0.134
2500+
RM0.080
5000+
RM0.073
More Pricing...
Min: 10 / Mult: 10
0402 [1005 Metric]
120ohm
1.3A
EMIFIL BLM15PD Series
0.09ohm
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
-
1781094RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
RM0.157
1000+
RM0.125
2000+
RM0.114
4000+
RM0.103
Min: 500 / 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
-
2443229RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
RM0.134
2500+
RM0.080
5000+
RM0.073
10000+
RM0.067
Min: 500 / Mult: 10
0402 [1005 Metric]
120ohm
1.3A
EMIFIL BLM15PD Series
0.09ohm
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
-
3471131

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.295
100+
RM0.208
500+
RM0.162
1000+
RM0.130
2000+
RM0.119
More Pricing...
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
AEC-Q200
3471130

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.304
100+
RM0.198
500+
RM0.157
1000+
RM0.116
2000+
RM0.107
More Pricing...
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
AEC-Q200
3471130RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
RM0.157
1000+
RM0.116
2000+
RM0.107
4000+
RM0.097
Min: 500 / 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
AEC-Q200
3471131RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
RM0.162
1000+
RM0.130
2000+
RM0.119
4000+
RM0.107
Min: 500 / 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
AEC-Q200
3471082RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
RM0.138
2500+
RM0.093
5000+
RM0.092
10000+
RM0.090
Min: 500 / Mult: 10
0402 [1005 Metric]
120ohm
1.3A
EMIFIL BLM15PD Series
0.09ohm
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3471082

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.258
100+
RM0.180
500+
RM0.138
2500+
RM0.093
5000+
RM0.092
More Pricing...
Min: 10 / Mult: 10
0402 [1005 Metric]
120ohm
1.3A
EMIFIL BLM15PD Series
0.09ohm
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3517423

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM4.370
10+
RM2.330
100+
RM1.730
500+
RM1.500
1000+
RM1.470
More Pricing...
Min: 1 / Mult: 1
1812 [4532 Metric]
2kohm
1.3A
Z-PWZ Series
0.13ohm
± 25%
4.5mm
3.2mm
3.2mm
SMD
-40°C
125°C
-
3517423RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM1.730
500+
RM1.500
1000+
RM1.470
2000+
RM1.440
Min: 100 / Mult: 1
1812 [4532 Metric]
2kohm
1.3A
Z-PWZ Series
0.13ohm
± 25%
4.5mm
3.2mm
3.2mm
SMD
-40°C
125°C
-
3523371

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM1.070
100+
RM0.736
500+
RM0.552
1000+
RM0.484
2000+
RM0.470
More Pricing...
Min: 10 / Mult: 10
0603 [1608 Metric]
220ohm
1.3A
FB Series
0.07ohm
25%
1.6mm
0.8mm
0.8mm
SMD
-40°C
150°C
AEC-Q200
2860472

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM0.364
10+
RM0.268
100+
RM0.210
500+
RM0.178
1000+
RM0.149
More Pricing...
Min: 1 / Mult: 1
0402 [1005 Metric]
120ohm
1.3A
BKP Series
100µohm
25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
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