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

B64290L0044X830 FERRITE CORE TOROID 2.2UH N30 EPCOS - TDK Electronics	13,264 In Stock	1 : ¥2.89000 Bulk	TX12.5/7.5/5	Bulk	Active	Toroid	-	N30	0.535" (13.60mm)	2.2 µH	±25%	Ungapped	4300	2.46	30.09	12.23	368	Epoxy	0.234" (5.95mm)	-	-
B64290L0044X087 FERRITE CORE TOROID 1.12UH N87 EPCOS - TDK Electronics	8,514 In Stock	1 : ¥3.40000 Box	TX12.5/7.5/5	Box	Active	Toroid	-	N87	0.535" (13.60mm)	1.12 µH	±25%	Ungapped	2200	2.46	30.09	12.23	368	Epoxy	0.234" (5.95mm)	-	-
B64290L0044X049 FERRITE CORE TOROID 660NH N49 EPCOS - TDK Electronics	18,168 In Stock	1 : ¥4.25000 Box	TX12.5/7.5/5	Box	Active	Toroid	-	N49	0.535" (13.60mm)	660 nH	±25%	Ungapped	1300	2.46	30.09	12.23	368	Epoxy	0.234" (5.95mm)	-	-
B64290L0044X038 FERRITE CORE TOROID 5.11UH T38 EPCOS - TDK Electronics	12,458 In Stock	1 : ¥4.25000 Bulk	TX12.5/7.5/5	Bulk	Active	Toroid	-	T38	0.535" (13.60mm)	5.11 µH	±30%	Ungapped	10000	2.46	30.09	12.23	368	Epoxy	0.234" (5.95mm)	-	-
B64290L0044X027 FERRITE CORE TOROID 1.02UH N27 EPCOS - TDK Electronics	12,108 In Stock	1 : ¥4.00000 Box	TX12.5/7.5/5	Box	Active	Toroid	-	N27	0.535" (13.60mm)	1.02 µH	±25%	Ungapped	2000	2.46	30.09	12.23	368	Epoxy	0.234" (5.95mm)	-	-
B64290L0044X035 FERRITE CORE TOROID 3.06UH T35 EPCOS - TDK Electronics	4,302 In Stock	1 : ¥4.34000 Box	TX12.5/7.5/5	Box	Active	Toroid	-	T35	0.535" (13.60mm)	3.06 µH	±25%	Ungapped	6000	2.46	30.09	12.23	368	Epoxy	0.234" (5.95mm)	-	-
B64290L0044X065 FERRITE CORE TOROID 2.4UH T65 EPCOS - TDK Electronics	4,469 In Stock	1 : ¥4.59000 Box	TX12.5/7.5/5	Box	Active	Toroid	-	T65	0.535" (13.60mm)	2.4 µH	±30%	Ungapped	4700	2.46	30.09	12.23	368	Epoxy	0.234" (5.95mm)	-	-
B64290L0044X072 FERRITE CORE TOROID N72 EPCOS - TDK Electronics	0 In Stock Check Lead Time	4,500 : ¥1.56298 Box	TX12.5/7.5/5	Box	Active	Toroid	-	N72	-	-	-	Gapped	2500	-	-	-	-	Epoxy	-	-	-
B64290L0044X037 FERRITE CORE TOROID 3.32UH T37 EPCOS - TDK Electronics	0 In Stock Check Lead Time	4,500 : ¥2.05810 Box	TX12.5/7.5/5	Box	Active	Toroid	-	T37	0.535" (13.60mm)	3.32 µH	±25%	Ungapped	6500	2.46	30.09	12.23	368	Epoxy	0.234" (5.95mm)	-	-

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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.