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

B65811J0000R087 FERRITE CORE RM 3.3UH N87 2PCS EPCOS - TDK Electronics	1,333 In Stock	1 : ¥22.02000 Box	RM8	Box	Active	RM	RM 8	N87	-	3.3 µH	-20%, +30%	Ungapped	1560.0	2200	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0250A087 FERRITE CORE RM 250NH N87 2PCS EPCOS - TDK Electronics	1,986 In Stock	1 : ¥23.12000 Box	RM8	Box	Active	RM	RM 8	N87	-	250 nH	±3%	Gapped	118.0	2200	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0000R608 FERRITE CORE RM PCS200 EPCOS - TDK Electronics	454 In Stock	1 : ¥24.57000 Bulk	RM8	Bulk	Active	RM	RM 8	PC200	-	-	-20%, +30%	Ungapped	600.0	800	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.650" (16.50mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0250J041 FERRITE CORE RM 250NH N41 2PCS EPCOS - TDK Electronics	707 In Stock	1 : ¥27.63000 Box	RM8	Box	Active	RM	RM 8	N41	-	250 nH	±5%	Gapped	118.0	2800	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0000R097 FERRITE CORE RM 3.3UH N97 2PCS EPCOS - TDK Electronics	774 In Stock	1 : ¥28.56000 Box	RM8	Box	Active	RM	RM 8	N97	-	3.3 µH	-20%, +30%	Ungapped	1560.0	2300	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0000R049 FERRITE CORE RM 2.2UH N49 2PCS EPCOS - TDK Electronics	688 In Stock	1 : ¥31.79000 Box	RM8	Box	Active	RM	RM 8	N49	-	2.2 µH	-20%, +30%	Ungapped	1040.0	1500	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0250A048 FERRITE CORE RM 250NH N48 2PCS EPCOS - TDK Electronics	800 In Stock	1 : ¥36.98000 Bulk	RM8	Bulk	Active	RM	RM 8	N48	-	250 nH	±3%	Gapped	134.0	-	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0000R030 FERRITE CORE RM 5.7UH N30 2PCS EPCOS - TDK Electronics	2,271 In Stock	1 : ¥19.38000 Box	RM8	Box	Active	RM	RM 8	N30	-	5.7 µH	-20%, +30%	Ungapped	2690.0	4300	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0400A087 FERRITE CORE RM 400NH N87 2PCS EPCOS - TDK Electronics	750 In Stock	1 : ¥23.12000 Box	RM8	Box	Active	RM	RM 8	N87	-	400 nH	±3%	Gapped	189.0	2200	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0000R041 FERRITE CORE RM 4.1UH N41 2PCS EPCOS - TDK Electronics	817 In Stock	1 : ¥26.61000 Box	RM8	Box	Active	RM	RM 8	N41	-	4.1 µH	-20%, +30%	Ungapped	1940.0	2800	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J1600K041 FERRITE CORE RM 1.6UH N41 2PCS EPCOS - TDK Electronics	960 In Stock	1 : ¥27.63000 Box	RM8	Box	Active	RM	RM 8	N41	-	1.6 µH	±10%	Gapped	756.0	2800	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0000Y038 FERRITE CORE RM 12.5UH T38 2PCS EPCOS - TDK Electronics	473 In Stock	1 : ¥30.43000 Box	RM8	Box	Active	RM	RM 8	T38	-	12.5 µH	-30%, +40%	Ungapped	5910.0	2300	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0160A041 FERRITE CORE RM 160NH N41 2PCS EPCOS - TDK Electronics	899 In Stock	1 : ¥30.94000 Box	RM8	Box	Active	RM	RM 8	N41	-	160 nH	±3%	Gapped	76.0	2800	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811D0000R048 FERRITE CORE RM 2.9UH N48 2PCS EPCOS - TDK Electronics	522 In Stock	1 : ¥35.36000 Box	RM8	Box	Active	RM	RM 8	N48	-	2.9 µH	-20%, +30%	Ungapped	1550.0	-	0.68	35.1	52.0	-	1825.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811F0630J048 FERRITE CORE RM 630NH N48 2PCS EPCOS - TDK Electronics	1,418 In Stock	1 : ¥39.95000 Box	RM8	Box	Active	RM	RM 8	N48	-	630 nH	±5%	Gapped	338.0	-	0.68	35.1	52.0	-	1825.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811D0630J048 FERRITE CORE RM 630NH N48 2PCS EPCOS - TDK Electronics	481 In Stock	1 : ¥41.48000 Cut Tape (CT) 200 : ¥20.54440 Tape & Box (TB)	RM8	Cut Tape (CT) Tape & Box (TB)	Active	RM	RM 8	N48	-	630 nH	±5%	Gapped	338.0	-	0.68	35.1	52.0	-	1825.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811F0250A048 FERRITE CORE RM 250NH N48 2PCS EPCOS - TDK Electronics	2,128 In Stock	1 : ¥50.66000 Bulk	RM8	Bulk	Active	RM	RM 8	N48	-	250 nH	±3%	Gapped	134.0	-	0.68	35.1	52.0	-	1825.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811F0400A048 FERRITE CORE RM 400NH N48 2PCS EPCOS - TDK Electronics	301 In Stock	1 : ¥17.26000 Box	RM8	Box	Active	RM	RM 8	N48	-	400 nH	±3%	Gapped	215.0	-	0.68	35.1	52.0	-	1825.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811D0400A048 FERRITE CORE RM 400NH N48 2PCS EPCOS - TDK Electronics	520 In Stock	1 : ¥29.16000 Box	RM8	Box	Active	RM	RM 8	N48	-	400 nH	±3%	Gapped	215.0	-	0.68	35.1	52.0	-	1825.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0630J041 FERRITE CORE RM 630NH N41 2PCS EPCOS - TDK Electronics	190 In Stock	1 : ¥27.63000 Box	RM8	Box	Active	RM	RM 8	N41	-	630 nH	±5%	Gapped	298.0	2800	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811D0250A048 FERRITE CORE RM 250NH N48 2PCS EPCOS - TDK Electronics	1,175 In Stock	1 : ¥36.98000 Box	RM8	Box	Active	RM	RM 8	N48	-	250 nH	±3%	Gapped	134.0	-	0.68	35.1	52.0	-	1825.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0315A048 FERRITE CORE RM 315NH N48 2PCS EPCOS - TDK Electronics	800 In Stock	1 : ¥36.98000 Box	RM8	Box	Active	RM	RM 8	N48	-	315 nH	±3%	Gapped	169.0	-	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0400A048 FERRITE CORE RM 400NH N48 2PCS EPCOS - TDK Electronics	800 In Stock	1 : ¥36.98000 Box	RM8	Box	Active	RM	RM 8	N48	-	400 nH	±3%	Gapped	215.0	-	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811J0160A087 FERRITE CORE RM N87 2PCS EPCOS - TDK Electronics	3 In Stock	1 : ¥23.55000 Box	RM8	Box	Active	RM	RM 8	N87	-	-	-	Gapped	-	-	0.59	38.0	64.0	55.0	2430.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B65811D0315A048 FERRITE CORE RM 315NH N48 2PCS EPCOS - TDK Electronics	0 In Stock Check Lead Time	800 : ¥19.02274 Box	RM8	Box	Active	RM	RM 8	N48	-	315 nH	±3%	Gapped	169.0	-	0.68	35.1	52.0	-	1825.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)

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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.

Ferrite Cores

Ferrite Cores

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