Ferrite Cores

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Core Type	Supplier Device Package	Material	Diameter	Tolerance	Gap	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

B66501G0000X187 FERRITE CORE ER N87 1PC EPCOS - TDK Electronics	9,453 In Stock	1 : ¥18.87000 Tray	ER32/5/21	Tray	Active	ER	ER 32 x 5 x 21	N87	-	-	Ungapped	-	-	-	-	-	Uncoated	0.201" (5.10mm)	1.260" (32.00mm)	0.827" (21.00mm)
B66501G0000X197 FERRITE CORE ER N97 1PC EPCOS - TDK Electronics	1,389 In Stock	1 : ¥37.83000 Box	ER32/5/21	Box	Active	ER	ER 32 x 5 x 21	N97	-	-	Ungapped	-	-	-	-	-	Uncoated	0.201" (5.10mm)	1.260" (32.00mm)	0.827" (21.00mm)
B66501G0000X192 FERRITE CORE ER N92 1PC EPCOS - TDK Electronics	165 In Stock	1 : ¥35.45000 Box	ER32/5/21	Box	Active	ER	ER 32 x 5 x 21	N92	-	-	Ungapped	-	-	-	-	-	Uncoated	0.201" (5.10mm)	1.260" (32.00mm)	0.827" (21.00mm)
B66501G0000X195 FERRITE CORE ER N95 EPCOS - TDK Electronics	0 In Stock Check Lead Time	1,216 : ¥14.52691 Box	ER32/5/21	Box	Active	ER	ER 32 x 5 x 21	N95	-	±25%	Ungapped	0.381	38.3	100.5	98.5	3847	Uncoated	0.201" (5.10mm)	1.260" (32.00mm)	0.827" (21.00mm)

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Ferrite Cores

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.