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

B64290L0038X830 FERRITE CORE TOROID 1.76UH N30 EPCOS - TDK Electronics	4,230 In Stock	1 : ¥2.64000 Bulk	TX10/6/4	Bulk	Active	Toroid	-	N30	0.425" (10.80mm)	1.76 µH	±25%	Ungapped	4300	3.07	24.07	7.83	188.0	Epoxy	0.187" (4.75mm)	-	-
B64290A0038X038 FERRITE CORE TOROID 4.09UH T38 EPCOS - TDK Electronics	4,722 In Stock	1 : ¥2.72000 Box	T10/6/4	Box	Active	Toroid	R 10 x 6 x 4	T38	0.394" (10.00mm)	4.09 µH	±30%	Ungapped	10000	3.07	24.07	7.83	188.0	Uncoated	0.157" (4.00mm)	-	-
B64290L0038X038 FERRITE CORE TOROID 4.09UH T38 EPCOS - TDK Electronics	4,899 In Stock	1 : ¥3.23000 Bulk	TX10/6/4	Bulk	Active	Toroid	-	T38	0.425" (10.80mm)	4.09 µH	±30%	Ungapped	10000	3.07	24.07	7.83	188.0	Epoxy	0.187" (4.75mm)	-	-
B64290L0038X049 FERRITE CORE TOROID 610NH N49 EPCOS - TDK Electronics	1,698 In Stock	1 : ¥4.00000 Box	TX10/6/4	Box	Active	Toroid	-	N49	0.425" (10.80mm)	610 nH	±25%	Ungapped	1500	3.07	24.07	7.83	188.0	Epoxy	0.187" (4.75mm)	-	-
B64290L0038X035 FERRITE CORE TOROID 2.46UH T35 EPCOS - TDK Electronics	1,640 In Stock	1 : ¥4.00000 Box	TX10/6/4	Box	Active	Toroid	-	T35	0.425" (10.80mm)	2.46 µH	±25%	Ungapped	6000	3.07	24.07	7.83	188.0	Epoxy	0.187" (4.75mm)	-	-
B64290L0082X038 FERRITE CORE TOROID 17.4UH T38 EPCOS - TDK Electronics	135 In Stock	1 : ¥157.95000 Tray	TX50/30/20	Tray	Active	Toroid	-	T38	2.040" (51.80mm)	17.4 µH	±30%	Ungapped	8500	0.62	120.4	195.7	23560.0	Epoxy	0.839" (21.30mm)	-	-
B64290L0062X065 FERRITE CORE TOROID 2.05UH T65 EPCOS - TDK Electronics	4,363 In Stock	1 : ¥3.57000 Box	TX9.5/4.8/3.2	Box	Active	Toroid	-	T65	0.413" (10.50mm)	2.05 µH	±30%	Ungapped	4600	2.85	20.72	7.28	151.0	Epoxy	0.161" (4.10mm)	-	-
B64290L0082X065 FERRITE CORE TOROID 10UH T65 EPCOS - TDK Electronics	209 In Stock	1 : ¥102.61000 Box	TX50/30/20	Box	Active	Toroid	-	T65	2.040" (51.80mm)	10 µH	±30%	Ungapped	4900	0.62	120.4	195.7	23560.0	Epoxy	0.839" (21.30mm)	-	-
B64290L0062X830 FERRITE CORE TOROID 1.9UH N30 EPCOS - TDK Electronics	7,990 In Stock	1 : ¥6.29000 Cut Tape (CT) 2,000 : ¥2.35261 Tape & Reel (TR)	TX9.5/4.8/3.2	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Toroid	R 9.53 × 4.75 × 3.17	N30	-	1.9 µH	±25%	Ungapped	4300	2.85	20.72	7.28	151.0	Epoxy	-	-	-
B64290L0038X046 FERRITE CORE TOROID 6UH T46 EPCOS - TDK Electronics	7,687 In Stock	1 : ¥4.59000 Box	TX10/6/4	Box	Obsolete	Toroid	-	T46	0.425" (10.80mm)	6 µH	±30%	Ungapped	15000	3.07	24.07	7.83	188.0	Epoxy	0.187" (4.75mm)	-	-
B64290L0062X046 FERRITE CORE TOROID 6.4UH T46 EPCOS - TDK Electronics	4,795 In Stock	1 : ¥6.80000 Box	TX9.5/4.8/3.2	Box	Obsolete	Toroid	-	T46	0.413" (10.50mm)	6.4 µH	±30%	Ungapped	15000	2.85	20.72	7.28	151.0	Epoxy	0.161" (4.10mm)	-	-
B64290L0038X087 FERRITE CORE TOROID 900NH N87 EPCOS - TDK Electronics	391 In Stock	1 : ¥2.38000 Bulk	TX10/6/4	Bulk	Active	Toroid	-	N87	0.425" (10.80mm)	900 nH	±25%	Ungapped	2200	3.07	24.07	7.83	188.0	Epoxy	0.187" (4.75mm)	-	-
B64290L0038X037 FERRITE CORE TOROID 2.66UH T37 EPCOS - TDK Electronics	395 In Stock	1 : ¥3.23000 Box	TX10/6/4	Box	Active	Toroid	-	T37	0.425" (10.80mm)	2.66 µH	±25%	Ungapped	6500	3.07	24.07	7.83	188.0	Epoxy	0.187" (4.75mm)	-	-
B64290A0038X830 FERRITE CORE TOROID 1.76UH N30 EPCOS - TDK Electronics	0 In Stock Check Lead Time	12,000 : ¥1.06367 Box	T10/6/4	Box	Active	Toroid	R 10 x 6 x 4	N30	0.394" (10.00mm)	1.76 µH	±25%	Ungapped	4300	3.07	24.07	7.83	188.0	Uncoated	0.157" (4.00mm)	-	-
B64290L0038X065 FERRITE CORE TOROID 1.9UH T65 EPCOS - TDK Electronics	0 In Stock Check Lead Time	12,000 : ¥1.06792 Box	TX10/6/4	Box	Active	Toroid	-	T65	0.425" (10.80mm)	1.9 µH	±30%	Ungapped	4700	3.07	24.07	7.83	188.0	Epoxy	0.187" (4.75mm)	-	-
B64290L0062X038 FERRITE CORE TOROID 4.41UH T38 EPCOS - TDK Electronics	0 In Stock Check Lead Time	8,000 : ¥2.14327 Box	TX9.5/4.8/3.2	Box	Active	Toroid	-	T38	0.413" (10.50mm)	4.41 µH	±30%	Ungapped	10000	2.85	20.72	7.28	151.0	Epoxy	0.161" (4.10mm)	-	-
B64290L0062X035 FERRITE CORE TOROID 2.65UH T35 EPCOS - TDK Electronics	0 In Stock Check Lead Time	8,000 : ¥2.25591 Box	TX9.5/4.8/3.2	Box	Active	Toroid	-	T35	0.413" (10.50mm)	2.65 µH	±25%	Ungapped	6000	2.85	20.72	7.28	151.0	Epoxy	0.161" (4.10mm)	-	-

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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.