Ferrite Cores

Browse available Ferrite Cores components by manufacturer and part number. Review stock status, datasheets and key technical parameters to compare suitable options for design, maintenance, replacement or purchasing.

If you already have a target MPN or BOM, send it to EGOO with the required quantity. Our sourcing team can check availability, lead time and quotation options, including hard-to-find and obsolete parts.

Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Packaging	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
RM8/I-3H3-A400 Ferrite Misc Ferroxcube	4,564	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 8	3H3	-	400 nH	±3%	Gapped	194.0	-	0.604	38.4	63.0	55.4	2440.0	Uncoated	0.323" (8.20mm)	0.913" (23.20mm)	0.433" (11.00mm)
RM8/I-3H3-A1000 Ferrite Misc Ferroxcube	3,786	-	RFQ	Datasheet	RM8/I	Bulk	Active	RM	RM 8	3H3	-	1 µH	±10%	Gapped	485.0	-	0.604	38.4	63.0	55.4	2440.0	Uncoated	0.323" (8.20mm)	0.913" (23.20mm)	0.433" (11.00mm)
RM8/I-3H3-A630 Ferrite Misc Ferroxcube	4,240	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 8	3H3	-	630 nH	±5%	Gapped	306.0	-	0.604	38.4	63.0	55.4	2440.0	Uncoated	0.323" (8.20mm)	0.913" (23.20mm)	0.433" (11.00mm)
RM8/I-3H3-A250 Ferrite Misc Ferroxcube	4,843	-	RFQ	Datasheet	RM8/I	Bulk	Active	RM	RM 8	3H3	-	3.25 µH	±25%	Gapped	-	-	0.604	38.4	63.0	55.4	2440.0	Uncoated	0.323" (8.20mm)	0.913" (23.20mm)	0.433" (11.00mm)
P18/11-3F3 Ferrite Misc Ferroxcube	2,495	-	RFQ	Datasheet	-	Bulk	Active	P	P 18 x 11	3F3	0.724" (18.40mm)	2.85 µH	±25%	Ungapped	1350.0	-	0.597	25.8	43.3	36.0	1120.0	Uncoated	0.209" (5.30mm)	-	-
B65807J1000D030 FERRITE CORE RM N30 EPCOS - TDK Electronics	4,944	-	RFQ	Datasheet	RM6	Box	Active	RM	RM 6	N30	-	-	-	Gapped	-	4300	0.78	28.6	36.6	31.0	1050.0	Uncoated	0.246" (6.25mm)	0.701" (17.90mm)	0.323" (8.20mm)
B65811J0630J087 FERRITE CORE RM EPCOS - TDK Electronics	4,239	-	RFQ	Datasheet	RM8	Box	Active	RM	-	-	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	-	-	-
9367055002 FERRITE CORE I 132NH 67 Fair-Rite Products Corp.	1,362	-	RFQ	Datasheet	-	Tape & Reel (TR)	Active	I	I 25 x 2.3 x 18	67	-	132 nH	-	Ungapped	-	-	0.293	26.4	90.3	82.8	2380.0	Uncoated	0.091" (2.30mm)	0.984" (25.00mm)	0.709" (18.00mm)
SF41408A250 GAPPED ROUND-SLAB CORE W/HOLE Magnetics, a division of Spang & Co.	1,094	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	F	-	250 nH	-	Ungapped	-	3000	-	20.2	23.0	-	460.0	Uncoated	0.334" (8.48mm)	0.551" (14.00mm)	0.370" (9.40mm)
0077154AY KOOL MU 090 PERM AY 150 SIZE Magnetics, a division of Spang & Co.	4,386	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.155" (3.94mm)	25 nH	±15%	Ungapped	-	90	-	9.42	2.11	-	19.9	Uncoated	0.100" (2.54mm)	-	-
0058042A2 HIGH FLUX 026 PERM KHAKI 040 SIZ Magnetics, a division of Spang & Co.	1,645	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	High Flux	0.400" (10.15mm)	14 nH	±8%	Ungapped	-	26	-	23.0	9.57	-	220.0	Uncoated	0.156" (3.96mm)	-	-
C058384A2 HIGH FLUX 090 PERM KHAKI 380 SIZ Magnetics, a division of Spang & Co.	2,071	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	High Flux	0.710" (18.03mm)	64 nH	±8%	Ungapped	-	90	-	41.1	23.3	-	960.0	Coated	0.280" (7.11mm)	-	-
0077151AY KOOL MU 060 PERM AY 150 SIZE Magnetics, a division of Spang & Co.	4,418	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.155" (3.94mm)	17 nH	±15%	Ungapped	-	60	-	9.42	2.11	-	19.9	Uncoated	0.100" (2.54mm)	-	-
DF42311A315 GAPPED DOUBLE SLAB POT CORE Magnetics, a division of Spang & Co.	2,880	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	F	-	315 nH	-	Ungapped	-	3000	-	26.8	51.2	-	1370.0	Uncoated	0.436" (11.08mm)	0.900" (22.86mm)	0.600" (15.25mm)
0P42020A642 GAPPED PQ CORE Magnetics, a division of Spang & Co.	4,146	-	RFQ	Datasheet	-	Bulk	Active	PQ	-	P	-	642 nH	-	Ungapped	-	2500	-	45.7	62.6	-	2850.0	Uncoated	0.795" (20.20mm)	0.839" (21.30mm)	0.551" (14.00mm)
UR37/26/18-3C90 FERRITE CORE UR 3C90 Ferroxcube	3,088	-	RFQ	Datasheet	-	Bulk	Active	UR	UR 37 x 26 x 18	3C90	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.012" (25.70mm)	1.457" (37.00mm)	0.709" (18.00mm)
PQ26/20-3C90-A250 Ferrite Misc Ferroxcube	2,005	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 26 x 20	3C90	-	250 nH	-	Gapped	-	-	0.372	45.0	121.0	109.0	5470.0	Uncoated	0.398" (10.10mm)	1.075" (27.30mm)	0.748" (19.00mm)
PQ26/20-3C94-A400 Ferrite Misc Ferroxcube	3,763	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 26 x 20	3C94	-	400 nH	-	Gapped	-	-	0.372	45.0	121.0	109.0	5470.0	Uncoated	0.398" (10.10mm)	1.075" (27.30mm)	0.748" (19.00mm)
PQ26/20-3C90-A315 Ferrite Misc Ferroxcube	3,798	-	RFQ	Datasheet	PQ26/20	Bulk	Active	PQ	PQ 26 x 20	3C90	-	315 nH	±3%	Gapped	93.0	-	0.372	45.0	121.0	109.0	5470.0	Uncoated	0.398" (10.10mm)	1.075" (27.30mm)	0.748" (19.00mm)
PQ26/20-3C90-A400 Ferrite Misc Ferroxcube	2,702	-	RFQ	Datasheet	PQ26/20	Bulk	Active	PQ	PQ 26 x 20	3C90	-	400 nH	±3%	Gapped	118.0	-	0.372	45.0	121.0	109.0	5470.0	Uncoated	0.398" (10.10mm)	1.075" (27.30mm)	0.748" (19.00mm)

Ferrite Cores FAQ

What Ferrite Cores components can I source from EGOO?

You can browse available Ferrite Cores product families, manufacturers and part numbers on this page, then review stock, datasheets and technical information for suitable options.

Can EGOO help with hard-to-source or obsolete Ferrite Cores parts?

Yes. EGOO provides sourcing support for shortage, obsolete and hard-to-find electronic components. Send us the target manufacturer part number and quantity for checking.

Does EGOO support BOM and small-batch sourcing?

Yes. We support BOM sourcing, prototype requirements and small-batch supply, together with stock, lead-time and quotation assistance.

How do I request pricing and availability?

Submit the manufacturer part number, required quantity and any package, date-code or delivery requirements through the RFQ form, and our team will review available sourcing options.