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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	Impedance @ 100MHz	Inner Diameter	DC Current Rating	Frequency Min	Product Range	Frequency Max	DC Resistance	DC Resistance Max	Impedance Tolerance	Product Length	Inductance Tolerance	Product Width	Product Height	Ferrite Mounting	Operating Temperature Min	Operating Temperature Max	Qualification
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BLM18HG601SN1D	73M9104 Data Sheet + RoHS	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+ $0.112 25+ $0.10 50+ $0.087 100+ $0.075	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	-
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	-
BLM18KG221SN1D	55R1510 Data Sheet + RoHS	Ferrite Bead, 0603 [1608 Metric], 220 ohm, 2.2 A, EMIFIL BLM18K Series, 0.05 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]	-	220ohm	-	-	2.2A	-	EMIFIL BLM18K Series	-	-	0.05ohm	± 25%	1.6mm	-	0.8mm	0.8mm	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	-
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+ $0.166 10+ $0.083 25+ $0.076 50+ $0.068 100+ $0.06	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	-

BLM21PG220SH1D	73M9164 Data Sheet + RoHS	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+ $0.088 25+ $0.079 50+ $0.071 100+ $0.061	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

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	-

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+ $0.051 100+ $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	-

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	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+ $0.078 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]	-	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+ $0.075 25+ $0.069 50+ $0.069 100+ $0.069 250+ $0.064 500+ $0.059 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	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+ $0.104 10+ $0.066 25+ $0.055 50+ $0.046 100+ $0.035	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+ $0.116 10+ $0.067 25+ $0.059 50+ $0.053 100+ $0.046	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	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+ $0.089 25+ $0.08 50+ $0.071 100+ $0.061	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	-

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+ $0.125 10+ $0.067 25+ $0.059 50+ $0.053 100+ $0.046	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	-

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	-

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+ $0.018 10+ $0.018 25+ $0.018 50+ $0.018 100+ $0.018 250+ $0.018 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	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+ $0.177 10+ $0.095 25+ $0.085 50+ $0.075 100+ $0.066	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+ $0.005 10+ $0.005 25+ $0.005 50+ $0.005 100+ $0.005	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	-

BLM18PG181SN1D	73M9110 Data Sheet + RoHS	Ferrite Bead, 0603 [1608 Metric], 180 ohm, 1.5 A, BLM18P Series, 0.09 ohm, ± 25% MURATA You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.104 10+ $0.061 25+ $0.052 50+ $0.044 100+ $0.034	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0603 [1608 Metric]	-	180ohm	-	-	1.5A	-	BLM18P Series	-	-	0.09ohm	± 25%	1.6mm	-	0.8mm	0.8mm	SMD	-55°C	125°C	-

ILHB0805ER601V	35M5653 Data Sheet + RoHS Date/Lot Code	Ferrite Bead, 0805 [2012 Metric], 600 ohm, 2 A, ILHB Series, 0.1 ohm, ± 25% VISHAY You previously purchased this product. View in Order History		Each (Supplied on Full Reel)	4000+ $0.032 8000+ $0.03	Restricted Item Minimum order of 4000 items Multiples of 4000 only Please enter a valid quantity Add	0805 [2012 Metric]	-	600ohm	-	-	2A	-	ILHB Series	-	-	0.1ohm	± 25%	2mm	-	1.25mm	0.9mm	SMD	-55°C	125°C	-