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	Minimum Core Cross Section (Amin) mm²	Effective Magnetic Volume (Ve) mm³	Finish	Height	Length	Width

B64290A0632X830 FERRITE CORE TOROID 4.16UH N30 EPCOS - TDK Electronics	3,513 In Stock	1 : ¥8.67000 Box	T20/10/7	Box	Active	Toroid	R 20 x 10 x 7	N30	0.787" (20.00mm)	4.16 µH	±25%	Ungapped	4300	1.3	43.55	33.63	-	1465.0	Uncoated	0.275" (7.00mm)	-	-
B64290A0048X830 FERRITE CORE TOROID 5.46UH N30 EPCOS - TDK Electronics	136 In Stock	1 : ¥28.73000 Box	T34/20.5/12.5	Box	Active	Toroid	R 34 x 20.5 x 12.5	N30	1.339" (34.00mm)	5.46 µH	±25%	Ungapped	4300	0.99	82.06	82.6	-	6778.0	Uncoated	0.492" (12.50mm)	-	-
B65982Q0400K097 FERRITE CORE PQ 400NH N97 EPCOS - TDK Electronics	3 In Stock	1 : ¥391.06000 Tray	PQ65/60	Tray	Active	PQ	PQ 65 x 60	N97	-	400 nH	±10%	Distributed Gapped	-	0.228	137.0	171.0	531.0	81950.0	Uncoated	1.181" (30.00mm)	2.559" (65.00mm)	1.772" (45.00mm)

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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.