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
B65805J0000R087 FERRITE CORE RM 2UH N87 2PCS TDK	2,992 In Stock	1 : £2.07000 Box	RM5	Box	Active	RM	RM 5	N87	-	2 µH	-20%, +30%	Ungapped	1480.0	2200	0.93	22.1	23.8	18.0	526.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805N0315A048 FERRITE CORE RM 315NH N48 2PCS TDK	2,500 In Stock	1 : £2.63000 Box	RM5	Box	Active	RM	RM 5	N48	-	315 nH	±3%	Gapped	251.0	-	1.0	20.8	20.8	-	433.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805N0250A048 FERRITE CORE RM 250NH N48 2PCS TDK	516 In Stock	1 : £2.63000 Box	RM5	Box	Active	RM	RM 5	N48	-	250 nH	±3%	Gapped	199.0	-	1.0	20.8	20.8	-	433.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805J0000R608 FERRITE CORE RM PC200 1=2PC TDK	1,316 In Stock	1 : £1.71000 Bulk	RM5	Bulk	Active	RM	RM 5	PC200	-	-	-20%, +30%	Ungapped	590.0	800	0.93	22.1	23.8	18.0	526.0	Uncoated	0.413" (10.50mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805J0000R041 FERRITE CORE RM 2.6UH N41 2PCS TDK	2,000 In Stock	1 : £1.95000 Box	RM5	Box	Active	RM	RM 5	N41	-	2.6 µH	-20%, +30%	Ungapped	1920.0	2800	0.93	22.1	23.8	18.0	526.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805C0250A048 FERRITE CORE RM 250NH N48 2PCS TDK	3,174 In Stock	1 : £2.12000 Box	RM5	Box	Active	RM	RM 5	N48	-	250 nH	±3%	Gapped	199.0	-	1.0	20.8	20.8	-	433.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805J0000R049 FERRITE CORE RM 1.3UH N49 2PCS TDK	696 In Stock	1 : £2.60000 Box	RM5	Box	Active	RM	RM 5	N49	-	1.3 µH	-20%, +30%	Ungapped	960.0	1500	0.93	22.1	23.8	18.0	526.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805N0160A048 FERRITE CORE RM 160NH N48 2PCS TDK	4,469 In Stock	1 : £2.63000 Box	RM5	Box	Active	RM	RM 5	N48	-	160 nH	±3%	Gapped	127.0	-	1.0	20.8	20.8	-	433.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805J0000R097 FERRITE CORE RM 2UH N97 2PCS TDK	1,721 In Stock	1 : £2.86000 Cut Tape (CT) 500 : £1.05536 Tape & Box (TB)	RM5	Cut Tape (CT) Tape & Box (TB)	Active	RM	RM 5	N97	-	2 µH	-20%, +30%	Ungapped	1480.0	2300	0.93	22.1	23.8	18.0	526.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805N0100A033 FERRITE CORE RM 100NH M33 2PCS TDK	2,149 In Stock	1 : £2.90000 Box	RM5	Box	Active	RM	RM 5	M33	-	100 nH	±3%	Gapped	79.6	-	1.0	20.8	20.8	-	433.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805C0315A048 FERRITE CORE RM 315NH N48 2PCS TDK	2,055 In Stock	1 : £2.12000 Tape & Box (TB)	RM5	Tape & Box (TB)	Active	RM	RM 5	N48	-	315 nH	±3%	Gapped	251.0	-	1.0	20.8	20.8	-	433.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805J0160A087 FERRITE CORE RM 160NH N87 2PCS TDK	587 In Stock	1 : £2.19000 Box	RM5	Box	Active	RM	RM 5	N87	-	160 nH	±3%	Gapped	118.0	-	0.93	22.1	23.8	18.0	526.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805J0000R030 FERRITE CORE RM 3.5UH N30 2PCS TDK	9 In Stock	1 : £1.82000 Box	RM5	Box	Active	RM	RM 5	N30	-	3.5 µH	-20%, +30%	Ungapped	2590.0	4300	0.93	22.1	23.8	18.0	526.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805J0000Y038 FERRITE CORE RM 6.7UH T38 2PCS TDK	0 In Stock Check Lead Time	1 : £2.22000 Box	RM5	Box	Active	RM	RM 5	T38	-	6.7 µH	-30%, +40%	Ungapped	4950.0	10000	0.93	22.1	23.8	18.0	526.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805C0000R048 FERRITE CORE RM 1.8UH N48 2PCS TDK	0 In Stock Check Lead Time	1 : £2.05000 Box	RM5	Box	Active	RM	RM 5	N48	-	1.8 µH	-20%, +30%	Ungapped	1430.0	-	1.0	20.8	20.8	-	433.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
B65805C0100A033 FERRITE CORE RM 100NH M33 2PCS TDK	0 In Stock Check Lead Time	1 : £2.67000 Cut Tape (CT) 500 : £0.97108 Tape & Box (TB)	RM5	Cut Tape (CT) Tape & Box (TB)	Active	RM	RM 5	M33	-	100 nH	±3%	Gapped	79.6	750	1.0	20.8	20.8	-	433.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)

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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.