Ferrite Cores

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Core Type	Supplier Device Package	Material	Diameter	Inductance Factor (Al)	Tolerance	Gap	Effective Permeability (µe)	Initial Permeability (µi)	Core Factor (ΣI/A) mm⁻¹	Effective Length (le) mm	Effective Area (Ae) mm²	Minimum Core Cross Section (Amin) mm²	Effective Magnetic Volume (Ve) mm³	Finish	Height	Length	Width
B65525J0160A087 FERRITE CORE ER 160NH N87 2PCS EPCOS - TDK Electronics	12 777 In Stock	1 : kr 14,08000 Box	ER11/2.5/6	Box	Active	ER	ER 11 x 5	N87	-	160 nH	±3%	Gapped	140.0	2200	1.1	14.1	12.4	-	174.0	Uncoated	0.098" (2.50mm)	0.433" (11.00mm)	0.236" (6.00mm)
B65525J0125J087 FERRITE CORE ER N87 EPCOS - TDK Electronics	0 In Stock Check Lead Time	10 000 : kr 4,75607 Box	ER11/2.5/6	Box	Active	ER	ER 11 x 5	N87	-	-	-	Gapped	-	2200	1.1	14.1	12.4	10.3	174.0	Uncoated	0.098" (2.50mm)	0.433" (11.00mm)	0.236" (6.00mm)
B65525J0250C087 FERRITE CORE ER N87 EPCOS - TDK Electronics	0 In Stock Check Lead Time	8 000 : kr 6,20134 Box	ER11/2.5/6	Box	Active	ER	ER 11 x 5	N87	-	-	-	Gapped	-	2200	1.1	14.1	12.4	10.3	174.0	Uncoated	0.098" (2.50mm)	0.433" (11.00mm)	0.236" (6.00mm)
B65525J0100A087 FERRITE CORE ER N87 EPCOS - TDK Electronics	0 In Stock Check Lead Time	10 000 : kr 6,20612 Box	ER11/2.5/6	Box	Active	ER	ER 11 x 5	N87	-	-	-	Gapped	-	2200	1.1	14.1	12.4	10.3	174.0	Uncoated	0.098" (2.50mm)	0.433" (11.00mm)	0.236" (6.00mm)
B65525J0140A087 FERRITE CORE ER N87 EPCOS - TDK Electronics	0 In Stock Check Lead Time	10 000 : kr 6,82279 Box	ER11/2.5/6	Box	Active	ER	ER 11 x 5	N87	-	-	-	Gapped	-	2200	1.1	14.1	12.4	10.3	174.0	Uncoated	0.098" (2.50mm)	0.433" (11.00mm)	0.236" (6.00mm)
B65525J0250B045 FERRITE CORE ER N45 EPCOS - TDK Electronics	0 In Stock Check Lead Time	8 000 : kr 7,05987 Box	ER11/2.5/6	Box	Active	ER	ER 11 x 5	N45	-	-	-	Gapped	-	3800	1.1	14.1	12.4	10.3	174.0	Uncoated	0.098" (2.50mm)	0.433" (11.00mm)	0.236" (6.00mm)
B65525J0400E045 FERRITE CORE ER N45 EPCOS - TDK Electronics	0 In Stock Check Lead Time	8 000 : kr 7,05987 Box	ER11/2.5/6	Box	Active	ER	ER 11 x 5	N45	-	-	-	Gapped	-	3800	1.1	14.1	12.4	10.3	174.0	Uncoated	0.098" (2.50mm)	0.433" (11.00mm)	0.236" (6.00mm)

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Ferrite cores are a magnetic device used in the windings of transformers or other wound components. The chemical makeup of these devices help to prevent eddy currents. These are created in different form factors such as: E, toroid, ER, multi-hole, etc. and come in many different sizes. Key parameters are going to be the size, form factor or core type, and inductance factor.