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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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Manufacturer Part No	Newark Part No.	Description / Manufacturer	Availability	Price for:	Price	Quantity	Ferrite Bead Case / Package	Outer Diameter	Impedance @ 100MHz	Impedance	DC Current Rating	Inner Diameter	Frequency Min	Product Range	DC Resistance	DC Resistance Max	Frequency Max	Impedance Tolerance	Product Length	Inductance Tolerance	Product Width	Product Height	Ferrite Mounting	Operating Temperature Min	Operating Temperature Max	Qualification
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MCAB 035090-33	97K4330 Data Sheet + RoHS Date/Lot Code	FERRITE CORE, CYLINDRICAL, 105OHM/100MHZ MULTICOMP PRO You previously purchased this product. View in Order History		Each	10+ $0.132 100+ $0.113 500+ $0.076 1000+ $0.071 5000+ $0.061 10000+ $0.053 25000+ $0.051 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add	Axial Leaded	-	-	134ohm	3A	0.65mm	-	-	-	-	-	-	9mm	-	-	-	Through Hole	-	-	-
742792609	08P2430 Data Sheet + RoHS Date/Lot Code	Ferrite Bead, 0603 [1608 Metric], 30 ohm, 3 A, WE-CBF Series, 0.04 ohm, ± 25% WURTH ELEKTRONIK You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	10+ $0.187 25+ $0.186 50+ $0.186 100+ $0.172	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0603 [1608 Metric]	-	-	30ohm	3A	-	-	WE-CBF Series	-	0.04ohm	-	-	1.6mm	-	0.8mm	0.8mm	-	-55°C	125°C	-
BLM18EG221SN1D	73M9090 Data Sheet + RoHS	Ferrite Bead, 0603 [1608 Metric], 260 ohm, 2 A, BLM18E Series, 0.05 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.218 10+ $0.123 25+ $0.119 50+ $0.114 100+ $0.11 250+ $0.092 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0603 [1608 Metric]	-	-	260ohm	2A	-	-	BLM18E Series	-	0.05ohm	-	± 25%	1.6mm	-	0.8mm	0.8mm	SMD	-55°C	125°C	-
BLM21PG220SH1D	73M9164 Data Sheet + RoHS Date/Lot Code	Ferrite Bead, 0805 [2012 Metric], 22 ohm, 6 A, BLM15A SH Series, 0.009 ohm, ± 25% MURATA You previously purchased this product. View in Order History	View Additional Avnet Stock	Each (Supplied on Cut Tape)	10+ $0.087 25+ $0.078 50+ $0.07 100+ $0.06	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Mult: 10 Cut Tape (Min: 10) Re-Reel (Min: 500) Add	0805 [2012 Metric]	-	-	22ohm	6A	-	-	BLM15A SH Series	-	0.009ohm	-	± 25%	2mm	-	1.25mm	0.85mm	SMD	-55°C	125°C	AEC-Q200
BLM21PG600SN1D	73M9170 Data Sheet + RoHS	Ferrite Bead, 0805 [2012 Metric], 60 ohm, 3.5 A, EMIFIL BLM21P Series, 0.02 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.022 10+ $0.022 25+ $0.022 50+ $0.022 100+ $0.022	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0805 [2012 Metric]	-	-	60ohm	3.5A	-	-	EMIFIL BLM21P Series	-	0.02ohm	-	± 25%	2mm	-	1.25mm	0.85mm	SMD	-55°C	125°C	-

BLM21AG102SN1D	73M9127 Data Sheet + RoHS	Ferrite Bead, 0805 [2012 Metric], 1 kohm, 600 mA, BLM21A Series, 0.28 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.156 10+ $0.134 25+ $0.114 50+ $0.094 100+ $0.074	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0805 [2012 Metric]	-	-	1kohm	600mA	-	-	BLM21A Series	-	0.28ohm	-	± 25%	2mm	-	1.25mm	0.85mm	SMD	-55°C	125°C	-

BLM18AG102SN1D	73M9050 Data Sheet + RoHS	Ferrite Bead, 0603 [1608 Metric], 1 kohm, 400 mA, BLM18A Series, 0.5 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.104 10+ $0.062 25+ $0.053 50+ $0.043 100+ $0.033	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0603 [1608 Metric]	-	-	1kohm	400mA	-	-	BLM18A Series	-	0.5ohm	-	± 25%	1.6mm	-	0.8mm	0.8mm	SMD	-55°C	125°C	-

BLM18HG601SN1D	73M9104 Data Sheet + RoHS Date/Lot Code	Ferrite Bead, 0603 [1608 Metric], 700 ohm, 200 mA, BLM18H Series, 1 ohm, ± 25% MURATA You previously purchased this product. View in Order History	View Additional Avnet Stock	Each (Supplied on Cut Tape)	10+ $0.151 25+ $0.128 50+ $0.106 100+ $0.083	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Mult: 10 Cut Tape (Min: 10) Re-Reel (Min: 500) Add	0603 [1608 Metric]	-	-	700ohm	200mA	-	-	BLM18H Series	-	1ohm	-	± 25%	1.6mm	-	0.8mm	0.8mm	SMD	-55°C	125°C	-

2512066017Y1	96H7307 Data Sheet + RoHS Date/Lot Code	Ferrite Bead, 1206 [3216 Metric], 600 ohm, 1 A, 0.08 ohm, ± 25% FAIR-RITE You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.055 25+ $0.055 50+ $0.055 100+ $0.047 250+ $0.047 500+ $0.043 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1206 [3216 Metric]	-	-	600ohm	1A	-	-	-	-	0.08ohm	-	± 25%	3.2mm	-	1.1mm	1.6mm	SMD	-55°C	125°C	-

BLM18KG601SN1D	55R1514 Data Sheet + RoHS	Ferrite Bead, 0603 [1608 Metric], 600 ohm, 1.3 A, EMIFIL BLM18K Series, 0.15 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.104 10+ $0.069 25+ $0.058 50+ $0.047 100+ $0.036	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0603 [1608 Metric]	-	-	600ohm	1.3A	-	-	EMIFIL BLM18K Series	-	0.15ohm	-	± 25%	1.6mm	-	0.8mm	0.8mm	SMD	-55°C	125°C	-

74279226101	74T0824 Data Sheet + RoHS	Ferrite Bead, 1812 [4532 Metric], 100 ohm, 8 A, WE-MPSB Series, 0.006 ohm, ± 25% WURTH ELEKTRONIK You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.697 10+ $0.662 25+ $0.661 50+ $0.659 100+ $0.627 250+ $0.612 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1812 [4532 Metric]	-	-	-	-	-	-	WE-MPSB Series	-	-	-	-	4.5mm	-	3.2mm	2.3mm	-	-55°C	125°C	-

BLM21PG221SH1D	73M9166 Data Sheet + RoHS Date/Lot Code	Ferrite Bead, 0805 [2012 Metric], 220 ohm, 2 A, BLM15A SH Series, 0.045 ohm, ± 25% MURATA You previously purchased this product. View in Order History	View Additional Avnet Stock	Each (Supplied on Cut Tape)	10+ $0.087 25+ $0.083 50+ $0.08 100+ $0.076	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Mult: 10 Cut Tape (Min: 10) Re-Reel (Min: 500) Add	0805 [2012 Metric]	-	-	220ohm	2A	-	-	BLM15A SH Series	-	0.045ohm	-	± 25%	2mm	-	1.25mm	0.85mm	SMD	-55°C	125°C	AEC-Q200

2773001112	21K5180 Data Sheet + RoHS Date/Lot Code	Ferrite Bead, Axial Leaded, 61 ohm FAIR-RITE You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.201 25+ $0.155 50+ $0.128 100+ $0.102 250+ $0.094 500+ $0.086 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Axial Leaded	-	-	61ohm	-	-	-	-	-	-	-	-	4.45mm	-	-mm	-	Through Hole	-55°C	125°C	-

BLM18RK102SN1D	73M9117 Data Sheet + RoHS Date/Lot Code	Ferrite Bead, 0603 [1608 Metric], 1 kohm, 200 mA, BLM18R Series, 0.8 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	10+ $0.052 25+ $0.047 50+ $0.042 100+ $0.036	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0603 [1608 Metric]	-	-	1kohm	200mA	-	-	BLM18R Series	-	0.8ohm	-	± 25%	1.6mm	-	0.8mm	0.8mm	SMD	-55°C	125°C	-

BLM18PG121SN1D	73M9109 Data Sheet + RoHS	Ferrite Bead, 0603 [1608 Metric], 120 ohm, 2 A, BLM18P Series, 0.05 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.187 10+ $0.153 25+ $0.13 50+ $0.108 100+ $0.085	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0603 [1608 Metric]	-	-	120ohm	2A	-	-	BLM18P Series	-	0.05ohm	-	± 25%	1.6mm	-	0.8mm	0.8mm	SMD	-55°C	125°C	-

BLM21PG221SN1D	73M9167 Data Sheet + RoHS	Ferrite Bead, 0805 [2012 Metric], 220 ohm, 2 A, BLM21 Series, 0.045 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.127 10+ $0.067 25+ $0.064 50+ $0.061 100+ $0.059	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0805 [2012 Metric]	-	-	220ohm	2A	-	-	BLM21 Series	-	0.045ohm	-	± 25%	2mm	-	1.25mm	0.85mm	SMD	-55°C	125°C	-

BLM21PG331SN1D	73M9169 Data Sheet + RoHS	Ferrite Bead, 0805 [2012 Metric], 330 ohm, 1.5 A, BLM21P Series, 0.07 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.022 10+ $0.022 25+ $0.022 50+ $0.022 100+ $0.022	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0805 [2012 Metric]	-	-	330ohm	1.5A	-	-	BLM21P Series	-	0.07ohm	-	± 25%	2mm	-	1.25mm	0.85mm	SMD	-55°C	125°C	-

BLM21AG221SN1D	73M9130 Data Sheet + RoHS Date/Lot Code	Ferrite Bead, 0805 [2012 Metric], 220 ohm, 800 mA, BLM21A Series, 0.13 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	10+ $0.078 25+ $0.07 50+ $0.062 100+ $0.054	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Mult: 10 Cut Tape (Min: 10) Re-Reel (Min: 500) Add	0805 [2012 Metric]	-	-	220ohm	800mA	-	-	BLM21A Series	-	0.13ohm	-	± 25%	2mm	-	1.25mm	0.85mm	SMD	-55°C	125°C	-

BLM15AG601SN1D	73M9025 Data Sheet + RoHS	Ferrite Bead, 0402 [1005 Metric], 600 ohm, 300 mA, BLM15AG_SN Series, 0.6 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.104 10+ $0.05 25+ $0.045 50+ $0.038 100+ $0.033	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0402 [1005 Metric]	-	-	600ohm	300mA	-	-	BLM15AG_SN Series	-	0.6ohm	-	± 25%	1mm	-	0.5mm	0.5mm	SMD	-55°C	125°C	-

BLM18AG601SN1D	73M9057 Data Sheet + RoHS	Ferrite Bead, 0603 [1608 Metric], 600 ohm, 500 mA, BLM18A Series, 0.38 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.104 10+ $0.062 25+ $0.053 50+ $0.043 100+ $0.033	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0603 [1608 Metric]	-	-	600ohm	500mA	-	-	BLM18A Series	-	0.38ohm	-	± 25%	1.6mm	-	0.8mm	0.8mm	SMD	-55°C	125°C	-

BLM21PG300SN1D	73M9168 Data Sheet + RoHS	Ferrite Bead, 0805 [2012 Metric], 30 ohm, 4 A, BLM21P Series, 0.014 ohm MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.114 10+ $0.098 25+ $0.084 50+ $0.07 100+ $0.056	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0805 [2012 Metric]	-	-	30ohm	4A	-	-	BLM21P Series	-	0.014ohm	-	-	2mm	-	1.25mm	0.85mm	SMD	-55°C	125°C	-

BLM18EG601SN1D	73M9095 Data Sheet + RoHS	Ferrite Bead, 0603 [1608 Metric], 600 ohm, 500 mA, BLM18E Series, 0.35 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.218 10+ $0.123 25+ $0.119 50+ $0.114 100+ $0.11 250+ $0.092 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0603 [1608 Metric]	-	-	600ohm	500mA	-	-	BLM18E Series	-	0.35ohm	-	± 25%	1.6mm	-	0.8mm	0.8mm	SMD	-55°C	125°C	-

BLM18AG121SN1D	73M9051 Data Sheet + RoHS	Ferrite Bead, 0603 [1608 Metric], 120 ohm, 500 mA, BLM18A Series, 0.18 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.104 10+ $0.062 25+ $0.053 50+ $0.043 100+ $0.033	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0603 [1608 Metric]	-	-	120ohm	500mA	-	-	BLM18A Series	-	0.18ohm	-	± 25%	1.6mm	-	0.8mm	0.8mm	SMD	-55°C	125°C	-

BLM21BD272SN1L	73M9155 Data Sheet + RoHS Date/Lot Code	Ferrite Bead, 0805 [2012 Metric], 2.7 kohm, 200 mA, BLM21B Series, 0.8 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.208 10+ $0.162 25+ $0.142 50+ $0.123 100+ $0.103	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Mult: 5 Cut Tape (Min: 5) Re-Reel (Min: 500) Add	0805 [2012 Metric]	-	-	2.7kohm	200mA	-	-	BLM21B Series	-	0.8ohm	-	± 25%	2mm	-	1.25mm	1.25mm	SMD	-55°C	125°C	-

BLM15AG121SN1D	73M9023 Data Sheet + RoHS	Ferrite Bead, 0402 [1005 Metric], 120 ohm, 500 mA, BLM15AG_SN Series, 0.25 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.006 10+ $0.006 25+ $0.006 50+ $0.006 100+ $0.006	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0402 [1005 Metric]	-	-	120ohm	500mA	-	-	BLM15AG_SN Series	-	0.25ohm	-	± 25%	1mm	-	0.5mm	0.5mm	SMD	-55°C	125°C	-