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
DC Current Rating
Product Range
DC Resistance Max
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Product Width
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Ferrite Mounting
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Operating Temperature Max
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3650645

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
CNY0.410
(CNY0.4633)
100+
CNY0.286
(CNY0.3232)
500+
CNY0.286
(CNY0.3232)
Min: 10 / Mult: 10
0201 [0603 Metric]
33ohm
750mA
MPZ Series
0.09ohm
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
-
3471138

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
CNY0.952
(CNY1.0758)
100+
CNY0.667
(CNY0.7537)
500+
CNY0.506
(CNY0.5718)
1000+
CNY0.388
(CNY0.4384)
2000+
CNY0.356
(CNY0.4023)
More Pricing...
Min: 10 / Mult: 10
0603 [1608 Metric]
33ohm
6A
EMIFIL BLM18SG Series
0.008ohm
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
3471138RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
CNY0.506
(CNY0.5718)
1000+
CNY0.388
(CNY0.4384)
2000+
CNY0.356
(CNY0.4023)
4000+
CNY0.323
(CNY0.365)
Min: 500 / Mult: 10
0603 [1608 Metric]
33ohm
6A
EMIFIL BLM18SG Series
0.008ohm
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
3650645RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
CNY0.286
(CNY0.3232)
Min: 500 / Mult: 10
0201 [0603 Metric]
33ohm
750mA
MPZ Series
0.09ohm
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
-
3288265RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY0.945
(CNY1.0678)
250+
CNY0.810
(CNY0.9153)
500+
CNY0.725
(CNY0.8192)
1000+
CNY0.615
(CNY0.695)
2500+
CNY0.612
(CNY0.6916)
Min: 100 / Mult: 10
0201 [0603 Metric]
33ohm
250mA
MMZ-E Series
0.6ohm
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
-
3288265

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
CNY1.040
(CNY1.1752)
100+
CNY0.945
(CNY1.0678)
250+
CNY0.810
(CNY0.9153)
500+
CNY0.725
(CNY0.8192)
1000+
CNY0.615
(CNY0.695)
More Pricing...
Min: 10 / Mult: 10
0201 [0603 Metric]
33ohm
250mA
MMZ-E Series
0.6ohm
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
-
1515742

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
CNY0.434
(CNY0.4904)
100+
CNY0.310
(CNY0.3503)
500+
CNY0.243
(CNY0.2746)
1000+
CNY0.214
(CNY0.2418)
2000+
CNY0.185
(CNY0.209)
More Pricing...
Min: 10 / Mult: 10
0603 [1608 Metric]
33ohm
3A
EMIFIL BLM18PG Series
0.025ohm
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
3471163

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
CNY2.640
(CNY2.9832)
50+
CNY1.440
(CNY1.6272)
250+
CNY1.090
(CNY1.2317)
500+
CNY0.879
(CNY0.9933)
1500+
CNY0.784
(CNY0.8859)
More Pricing...
Min: 5 / Mult: 5
1206 [3216 Metric]
33ohm
6A
EMIFIL BLM31PG Series
0.009ohm
± 25%
3.2mm
1.6mm
1.1mm
SMD
-55°C
125°C
AEC-Q200
3471086

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
CNY0.500
(CNY0.565)
100+
CNY0.353
(CNY0.3989)
500+
CNY0.273
(CNY0.3085)
2500+
CNY0.243
(CNY0.2746)
5000+
CNY0.177
(CNY0.200)
More Pricing...
Min: 10 / Mult: 10
0402 [1005 Metric]
33ohm
3A
EMIFIL BLM15PX Series
0.022ohm
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
-
3471137

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
CNY0.528
(CNY0.5966)
100+
CNY0.366
(CNY0.4136)
500+
CNY0.286
(CNY0.3232)
1000+
CNY0.220
(CNY0.2486)
2000+
CNY0.191
(CNY0.2158)
More Pricing...
Min: 10 / Mult: 10
0603 [1608 Metric]
33ohm
3A
EMIFIL BLM18PG Series
0.025ohm
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
AEC-Q200
1515742RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
CNY0.243
(CNY0.2746)
1000+
CNY0.214
(CNY0.2418)
2000+
CNY0.185
(CNY0.209)
4000+
CNY0.156
(CNY0.1763)
Min: 500 / Mult: 10
0603 [1608 Metric]
33ohm
3A
EMIFIL BLM18PG Series
0.025ohm
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
-
2443225RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
CNY0.176
(CNY0.1989)
2500+
CNY0.118
(CNY0.1333)
5000+
CNY0.107
(CNY0.1209)
10000+
CNY0.096
(CNY0.1085)
Min: 500 / Mult: 10
0402 [1005 Metric]
33ohm
300mA
EMIFIL BLM15BA Series
0.4ohm
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
-
2443225

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
CNY0.315
(CNY0.356)
100+
CNY0.227
(CNY0.2565)
500+
CNY0.176
(CNY0.1989)
2500+
CNY0.118
(CNY0.1333)
5000+
CNY0.107
(CNY0.1209)
More Pricing...
Min: 10 / Mult: 10
0402 [1005 Metric]
33ohm
300mA
EMIFIL BLM15BA Series
0.4ohm
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
-
3471063

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
CNY0.152
(CNY0.1718)
100+
CNY0.108
(CNY0.122)
500+
CNY0.087
(CNY0.0983)
2500+
CNY0.058
(CNY0.0655)
7500+
CNY0.057
(CNY0.0644)
More Pricing...
Min: 10 / Mult: 10
0201 [0603 Metric]
33ohm
1.5A
EMIFIL BLM03PX Series
0.055ohm
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
-
3471137RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
CNY0.286
(CNY0.3232)
1000+
CNY0.220
(CNY0.2486)
2000+
CNY0.191
(CNY0.2158)
4000+
CNY0.162
(CNY0.1831)
Min: 500 / Mult: 10
0603 [1608 Metric]
33ohm
3A
EMIFIL BLM18PG Series
0.025ohm
± 25%
1.6mm
0.8mm
0.8mm
SMD
-55°C
125°C
AEC-Q200
3386762RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
CNY0.242
(CNY0.2735)
2500+
CNY0.154
(CNY0.174)
5000+
CNY0.143
(CNY0.1616)
10000+
CNY0.133
(CNY0.1503)
Min: 500 / Mult: 10
0402 [1005 Metric]
33ohm
400mA
MMZ Series
0.24ohm
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3386762

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
CNY0.440
(CNY0.4972)
100+
CNY0.308
(CNY0.348)
500+
CNY0.242
(CNY0.2735)
2500+
CNY0.154
(CNY0.174)
5000+
CNY0.143
(CNY0.1616)
More Pricing...
Min: 10 / Mult: 10
0402 [1005 Metric]
33ohm
400mA
MMZ Series
0.24ohm
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
AEC-Q200
3471163RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
50+
CNY1.440
(CNY1.6272)
250+
CNY1.090
(CNY1.2317)
500+
CNY0.879
(CNY0.9933)
1500+
CNY0.784
(CNY0.8859)
3000+
CNY0.689
(CNY0.7786)
Min: 100 / Mult: 5
1206 [3216 Metric]
33ohm
6A
EMIFIL BLM31PG Series
0.009ohm
± 25%
3.2mm
1.6mm
1.1mm
SMD
-55°C
125°C
AEC-Q200
3471086RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
CNY0.273
(CNY0.3085)
2500+
CNY0.243
(CNY0.2746)
5000+
CNY0.177
(CNY0.200)
10000+
CNY0.156
(CNY0.1763)
Min: 500 / Mult: 10
0402 [1005 Metric]
33ohm
3A
EMIFIL BLM15PX Series
0.022ohm
± 25%
1mm
0.5mm
0.5mm
SMD
-55°C
125°C
-
3471063RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
CNY0.087
(CNY0.0983)
2500+
CNY0.058
(CNY0.0655)
7500+
CNY0.057
(CNY0.0644)
15000+
CNY0.055
(CNY0.0622)
Min: 500 / Mult: 10
0201 [0603 Metric]
33ohm
1.5A
EMIFIL BLM03PX Series
0.055ohm
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
-
3650646

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
CNY0.465
(CNY0.5254)
100+
CNY0.362
(CNY0.4091)
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
-
3650646RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY0.362
(CNY0.4091)
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
-
3996390

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
CNY0.493
(CNY0.5571)
100+
CNY0.416
(CNY0.4701)
500+
CNY0.390
(CNY0.4407)
2500+
CNY0.293
(CNY0.3311)
7500+
CNY0.280
(CNY0.3164)
More Pricing...
Min: 10 / Mult: 10
0201 [0603 Metric]
33ohm
300mA
BMC Series
0.3ohm
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
-
3996390RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
CNY0.390
(CNY0.4407)
2500+
CNY0.293
(CNY0.3311)
7500+
CNY0.280
(CNY0.3164)
15000+
CNY0.272
(CNY0.3074)
Min: 500 / Mult: 10
0201 [0603 Metric]
33ohm
300mA
BMC Series
0.3ohm
± 25%
0.6mm
0.3mm
0.3mm
SMD
-55°C
125°C
-
4155375

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
CNY2.320
(CNY2.6216)
50+
CNY1.280
(CNY1.4464)
250+
CNY0.964
(CNY1.0893)
500+
CNY0.852
(CNY0.9628)
1500+
CNY0.740
(CNY0.8362)
More Pricing...
Min: 5 / Mult: 5
1206 [3216 Metric]
33ohm
6A
EMIFIL BLM31PG Series
0.009ohm
± 25%
3.2mm
1.6mm
1.3mm
SMD
-55°C
125°C
-
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