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	Initial Permeability (µi)	Core Factor (ΣI/A) mm⁻¹	Effective Length (le) mm	Effective Area (Ae) mm²	Effective Magnetic Volume (Ve) mm³	Finish	Height	Length	Width
B64290L0632X087 FERRITE CORE TOROID 2.13UH N87 EPCOS - TDK Electronics	5,754 In Stock	1 : $2.93000 Box	TX20/10/7	Box	Active	Toroid	-	N87	0.835" (21.20mm)	2.13 µH	±25%	Ungapped	2200	1.3	43.55	33.63	1465.0	Epoxy	0.319" (8.10mm)	-	-
CMC020012008H NANOCRYSTAL CORE TOROID 61.5UH Magnetics, a division of Spang & Co.	236 In Stock	1 : $5.44000 Bulk	-	Bulk	Active	Toroid	-	Nanocrystalline	0.787" (20.00mm)	61.5 µH	±30%	Ungapped	80000	-	50.2	26.9	-	Polyester	0.315" (8.00mm)	-	-
B64290L0048X830 FERRITE CORE TOROID 5.46UH N30 EPCOS - TDK Electronics	985 In Stock	1 : $7.58000 Tray	TX34/20.5/12.5	Tray	Active	Toroid	-	N30	1.397" (35.50mm)	5.46 µH	±25%	Ungapped	4300	0.99	82.06	82.6	6778.0	Epoxy	0.535" (13.60mm)	-	-
T60006L2012W803 FERRITE CORE TOROID VACUUMSCHMELZE	4,452 In Stock	1 : $2.38000 Box	-	Box	Active	Toroid	-	-	0.579" (14.70mm)	-	-	Ungapped	-	-	35.0	4.2	-	Epoxy	0.189" (4.80mm)	-	-
5943001001 FERRITE CORE TOROID 43 Fair-Rite Products Corp.	0 In Stock Check Lead Time	1 : $3.23000 Bulk	-	Bulk	Active	Toroid	-	43	1.142" (29.00mm)	-	±20%	Ungapped	800	-	73.0	37.0	2700.0	Uncoated	0.295" (7.50mm)	-	-
T60006L2019W838 FERRITE CORE TOROID 36.1UH VACUUMSCHMELZE	0 In Stock Check Lead Time	25,272 : $1.68184 Box	-	Box	Active	Toroid	-	-	0.835" (21.20mm)	36.1 µH	-	Ungapped	-	-	5340.0	160.0	-	Coated	0.484" (12.30mm)	-	-

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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.