Ferrite Cores

Compare the current Ferrite Cores Magnetics - Transformer, Inductor Components selection by manufacturer, stock status, datasheet and technical parameters. Use these details to narrow the list to parts that match your design, maintenance or purchasing requirements.

For a specific MPN, package, electrical rating or quantity requirement, send the details to EGOO. We can help confirm availability, quotation and alternative sourcing options.

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
CF297 T4218A COSMO INDIA TOROIDAL RINGS MN-Z Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	Toroid	TX 42 x 26 x 18	3C90	1.697" (43.15mm)	-	-	-	-	-	-	-	-	-	-	Epoxy	0.736" (18.70mm)	-	-
CF139 T4218A COSMO INDIA TOROIDAL RINGS MN-Z Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	Toroid	TX 42 x 26 x 18	-	1.697" (43.15mm)	-	±30%	Ungapped	-	-	0.769	103.0	134.0	-	13810.0	Epoxy	0.736" (18.70mm)	-	-
CF249 PQ3220 COSMO INDIA PQ CORE MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 32 x 20	N49	-	4.6 µH	-20%, +30%	Ungapped	-	1500	0.314	48.4	154.2	-	7460.0	Uncoated	0.404" (10.25mm)	1.260" (32.00mm)	0.866" (22.00mm)
CF199 P2616 COSMO INDIA POT CORES MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	P (Pot Core)	P 26 x 16	T38	1.024" (26.00mm)	22 µH	-30%, +40%	Ungapped	-	10000	0.37	40.0	108.0	-	4320.0	Uncoated	0.321" (8.15mm)	-	-
CF297 ETD4917 COSMO INDIA ETD CORE MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	ETD	ETD 49 x 25 x 16	N97	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.980" (24.90mm)	1.909" (48.50mm)	0.657" (16.70mm)
CF139 T5818 COSMO INDIA TOROIDAL RINGS MN-Z Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	Toroid	TX 58 x 41 x 18	-	2.354" (59.80mm)	-	±30%	Ungapped	-	-	1.0	152.0	152.0	-	23200.0	Epoxy	0.729" (18.60mm)	-	-
CF196 EE6527 COSMO INDIA E CORE MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	E	E 65 x 32 x 27	N27	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	1.291" (32.80mm)	2.559" (65.00mm)	1.079" (27.40mm)
CF296 ETD4917 COSMO INDIA E CORE MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	E	EER 49	PC47	-	6.25 µH	±25%	Ungapped	-	-	0.4	91.3	231.0	-	21100.0	Uncoated	0.748" (19.00mm)	1.929" (49.00mm)	0.677" (17.20mm)
CF139 PQ4040 COSMO INDIA PQ CORE MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 40 x 40	N87	-	4.3 µH	-20%, +30%	Ungapped	-	2200	0.49	92.5	188.3	-	17430.0	Uncoated	0.783" (19.90mm)	1.594" (40.50mm)	1.102" (28.00mm)
CF249 EE6420P COSMO INDIA E CORE MN-ZN Cosmo Ferrites Ltd.	500	-	RFQ	Datasheet	-	Bulk	Active	E	E 64 x 10 x 50	3C92	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.402" (10.20mm)	2.520" (64.00mm)	2.000" (50.80mm)

Ferrite Cores FAQ

How can I narrow the current Ferrite Cores selection?

Use the available manufacturer and technical filters to compare matching parts by specifications, stock status, pricing and datasheet information.

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

Yes. Send the manufacturer part number and required quantity to our sourcing team for availability, lead-time and alternative sourcing support.

Can I request a quotation for a BOM or small-batch requirement?

Yes. EGOO supports BOM sourcing, prototype quantities and small-batch purchasing. Provide your part list and quantities for a quotation review.

What information should I provide when requesting a quote?

Please provide the target part number, manufacturer, quantity and any required date code, package or delivery requirements so our team can respond more accurately.