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	Effective Permeability (µe)	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
B65803J0000R030 FERRITE CORE RM 1.9UH N30 2PCS EPCOS - TDK Electronics	3,985 In Stock	1 : £1.81000 Box	RM4	Box	Active	RM	RM 4	N30	-	1.9 µH	-20%, +30%	Ungapped	2560.0	4300	1.7	22.0	13.0	11.3	286.0	Uncoated	0.207" (5.25mm)	0.433" (11.00mm)	0.181" (4.60mm)
B66285G0000X187 FERRITE CORE ELP N87 1PC EPCOS - TDK Electronics	16,313 In Stock	1 : £1.20000 Box	ELP22/6/16	Box	Active	ELP	ELP 22 x 6 x 16	N87	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.224" (5.70mm)	0.858" (21.80mm)	0.622" (15.80mm)
B65803J0000R087 FERRITE CORE RM 1.1UH N87 2PCS EPCOS - TDK Electronics	8,180 In Stock	1 : £1.43000 Box	RM4	Box	Active	RM	RM 4	N87	-	1.1 µH	-20%, +30%	Ungapped	1480.0	2200	1.7	22.0	13.0	11.3	286.0	Uncoated	0.207" (5.25mm)	0.433" (11.00mm)	0.181" (4.60mm)
B65803P0000R049 FERRITE CORE RM 950NH N49 2PCS EPCOS - TDK Electronics	845 In Stock	1 : £2.08000 Box	RM4/LP	Box	Active	RM	RM 4 LP	N49	-	950 nH	-20%, +30%	Ungapped	900.0	1500	1.2	17.3	14.5	11.3	251.0	Uncoated	0.154" (3.90mm)	0.433" (11.00mm)	0.181" (4.60mm)
B65803N0160A048 FERRITE CORE RM 160NH N48 2PCS EPCOS - TDK Electronics	1,861 In Stock	1 : £2.67000 Box	RM4	Box	Active	RM	RM 4	N48	-	160 nH	±3%	Gapped	243.0	-	1.9	21.0	11.0	-	231.0	Uncoated	0.207" (5.25mm)	0.433" (11.00mm)	0.181" (4.60mm)
B65803J0000R608 FERRITE CORE RM PCS200 EPCOS - TDK Electronics	1,705 In Stock	1 : £1.58000 Bulk	RM4	Bulk	Active	RM	RM 4	PC200	-	-	-20%, +30%	Ungapped	670.0	800	1.7	22.0	13.0	11.3	286.0	Uncoated	0.413" (10.50mm)	0.433" (11.00mm)	0.181" (4.60mm)
B66285G0000X197 FERRITE CORE ELP N97 1PC EPCOS - TDK Electronics	1,671 In Stock	1 : £1.85000 Box	ELP22/6/16	Box	Active	ELP	ELP 22 x 6 x 16	N97	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.224" (5.70mm)	0.858" (21.80mm)	0.622" (15.80mm)
B66285G0000X192 FERRITE CORE ELP N92 1PC EPCOS - TDK Electronics	734 In Stock	1 : £1.94000 Box	ELP22/6/16	Box	Active	ELP	ELP 22 x 6 x 16	N92	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.224" (5.70mm)	0.858" (21.80mm)	0.622" (15.80mm)
B66285G0000X149 FERRITE CORE ELP N49 1PC EPCOS - TDK Electronics	1,200 In Stock	1 : £2.11000 Box	ELP22/6/16	Box	Active	ELP	ELP 22 x 6 x 16	N49	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.224" (5.70mm)	0.858" (21.80mm)	0.622" (15.80mm)
B65803P0160J087 FERRITE CORE RM N87 EPCOS - TDK Electronics	1,566 In Stock	1 : £2.21000 Box	RM4/LP	Box	Active	RM	RM 4 LP	N87	-	-	-	Gapped	-	2200	1.2	17.3	14.5	11.3	251.0	Uncoated	0.154" (3.90mm)	0.433" (11.00mm)	0.181" (4.60mm)
B65803N0063A033 FERRITE CORE RM 63NH M33 2PCS EPCOS - TDK Electronics	1,724 In Stock	1 : £2.86000 Box	RM4	Box	Active	RM	RM 4	M33	-	63 nH	±3%	Gapped	96.0	750	1.9	21.0	11.0	-	231.0	Uncoated	0.207" (5.25mm)	0.433" (11.00mm)	0.181" (4.60mm)
B65803P0000Y038 FERRITE CORE RM 5UH T38 2PCS EPCOS - TDK Electronics	53 In Stock	1 : £2.39000 Box	RM4/LP	Box	Active	RM	RM 4 LP	T38	-	5 µH	-30%, +40%	Ungapped	4750.0	2300	1.2	17.3	14.5	11.3	251.0	Uncoated	0.154" (3.90mm)	0.433" (11.00mm)	0.181" (4.60mm)
B65803P0000R087 FERRITE CORE RM 1.3UH N87 2PCS EPCOS - TDK Electronics	0 In Stock Check Lead Time	1 : £2.12000 Box	RM4/LP	Box	Active	RM	RM 4 LP	N87	-	1.3 µH	-20%, +30%	Ungapped	1230.0	2200	1.2	17.3	14.5	11.3	251.0	Uncoated	0.154" (3.90mm)	0.433" (11.00mm)	0.181" (4.60mm)

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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.