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
CF295 PQ3535 COSMO INDIA PQ CORE MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 35 x 35	3C95	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.366" (34.70mm)	1.421" (36.10mm)	1.024" (26.00mm)
CF199 T3415 COSMO INDIA TOROIDAL RINGS MN-Z Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	Toroid	R 34.0 × 20.5 × 12.5	T38	-	-	±30%	Ungapped	-	10000	0.99	82.06	82.6	-	6778.0	Epoxy	-	-	-
CF139 RM12 COSMO INDIA RM CORES MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 12	N87	-	5.3 µH	-20%, +30%	Ungapped	-	2200	0.39	57.0	146.0	-	8320.0	Uncoated	0.484" (12.30mm)	1.480" (37.60mm)	0.634" (16.10mm)
CF139 RM5 COSMO INDIA RM CORES MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 5	K1	-	40 nH	±3%	Gapped	-	80	1.0	20.8	20.8	-	433.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)
7070 40-40-00-0000 PQ Core Ferrite International	5,760	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 40 x 40	7070	-	-	±25%	Ungapped	-	-	-	-	-	-	-	Uncoated	0.783" (19.90mm)	1.634" (41.50mm)	1.102" (28.00mm)
7099 40-40-00-0000 PQ Core Ferrite International	5,760	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 40 x 40	7099	-	-	±25%	Ungapped	-	-	-	-	-	-	-	Uncoated	0.783" (19.90mm)	1.634" (41.50mm)	1.102" (28.00mm)
50ALL 40-40-00-0000 PQ Core Ferrite International	5,760	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 40 x 40	50ALL	-	-	±25%	Ungapped	-	-	-	-	-	-	-	Uncoated	0.783" (19.90mm)	1.634" (41.50mm)	1.102" (28.00mm)
N001 40-40-00-0000 PQ Core Ferrite International	5,760	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 40 x 40	N001	-	-	±25%	Ungapped	-	-	-	-	-	-	-	Uncoated	0.783" (19.90mm)	1.634" (41.50mm)	1.102" (28.00mm)
CF196 EE5521 COSMO INDIA E CORE MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	E	E 55 x 28 x 21	N27	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	1.094" (27.80mm)	2.165" (55.00mm)	0.827" (21.00mm)
CF296 EE4328P COSMO INDIA ELP CORE MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	ELP	ELP 43 x 10 x 28	N95	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.374" (9.50mm)	1.700" (43.20mm)	1.098" (27.90mm)
50ALL 36-22-00-0000 Pot Core Ferrite International	8,400	-	RFQ	Datasheet	-	Bulk	Active	P (Pot Core)	P 36 x 22	50ALL	-	-	±25%	Ungapped	-	-	-	-	-	-	-	Uncoated	0.427" (10.85mm)	1.402" (35.61mm)	-
7099 36-22-00-0000 Pot Core Ferrite International	8,400	-	RFQ	Datasheet	-	Bulk	Active	P (Pot Core)	P 36 x 22	7099	-	-	±25%	Ungapped	-	-	-	-	-	-	-	Uncoated	0.427" (10.85mm)	1.402" (35.61mm)	-
7070 36-22-00-0000 Pot Core Ferrite International	8,400	-	RFQ	Datasheet	-	Bulk	Active	P (Pot Core)	P 36 x 22	7070	-	-	±25%	Ungapped	-	-	-	-	-	-	-	Uncoated	0.427" (10.85mm)	1.402" (35.61mm)	-
N001 36-22-00-0000 Pot Core Ferrite International	8,400	-	RFQ	Datasheet	-	Bulk	Active	P (Pot Core)	P 36 x 22	N001	-	-	±25%	Ungapped	-	-	-	-	-	-	-	Uncoated	0.427" (10.85mm)	1.402" (35.61mm)	-
CF130 EP20 COSMO INDIA EP CORE MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	EP	EP 20	N30	-	6.7 µH	-20%, +30%	Ungapped	-	5200	0.51	40.0	78.0	-	3120.0	Uncoated	0.425" (10.80mm)	0.965" (24.50mm)	0.602" (15.30mm)
7099 42-29-00-0000 Pot Core Ferrite International	9,600	-	RFQ	Datasheet	-	Bulk	Active	P (Pot Core)	P 42 x 29	7099	-	-	±25%	Ungapped	-	-	-	-	-	-	-	Uncoated	0.573" (14.80mm)	1.661" (42.20mm)	-
7070 42-29-00-0000 Pot Core Ferrite International	9,600	-	RFQ	Datasheet	-	Bulk	Active	P (Pot Core)	P 42 x 29	7070	-	-	±25%	Ungapped	-	-	-	-	-	-	-	Uncoated	0.573" (14.80mm)	1.661" (42.20mm)	-
50ALL 42-29-00-0000 Pot Core Ferrite International	9,600	-	RFQ	Datasheet	-	Bulk	Active	P (Pot Core)	P 42 x 29	50ALL	-	-	±25%	Ungapped	-	-	-	-	-	-	-	Uncoated	0.573" (14.80mm)	1.661" (42.20mm)	-
N001 42-29-00-0000 Pot Core Ferrite International	9,600	-	RFQ	Datasheet	-	Bulk	Active	P (Pot Core)	P 42 x 29	N001	-	-	±25%	Ungapped	-	-	-	-	-	-	-	Uncoated	0.573" (14.80mm)	1.661" (42.20mm)	-
CF140 RM10 COSMO INDIA RM CORES MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 10	N48	-	630 nH	±3%	Gapped	-	-	0.5	42.0	83.0	-	3490.0	Uncoated	0.368" (9.35mm)	1.122" (28.50mm)	0.531" (13.50mm)

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.