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
0J40704UG POT CORE Magnetics, a division of Spang & Co.	2,629	-	RFQ	Datasheet	-	Bulk	Active	P	-	J	0.285" (7.24mm)	2.257 µH	-	Ungapped	-	5000	-	9.9	7.0	5.9	69.0	Uncoated	0.082" (2.08mm)	-	-
0W42908TC TOROID UNCOATED Magnetics, a division of Spang & Co.	2,205	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	1.142" (29.00mm)	6.34 µH	±30%	Ungapped	-	10000	-	73.2	37.0	-	2704.0	Uncoated	0.295" (7.50mm)	-	-
PW41010UG EP CORE Magnetics, a division of Spang & Co.	2,140	-	RFQ	Datasheet	-	Bulk	Active	EP	-	W	-	4.8 µH	-	Ungapped	-	10000	-	19.3	11.3	8.55	215.0	Uncoated	0.406" (10.30mm)	0.453" (11.50mm)	0.300" (7.60mm)
SF42318UG ROUND-SLAB CORE W/HOLE Magnetics, a division of Spang & Co.	3,087	-	RFQ	Datasheet	-	Bulk	Active	PS	-	F	0.902" (22.90mm)	4 µH	±25%	Ungapped	-	3000	-	41.6	62.2	53.6	2590.0	Uncoated	0.354" (9.00mm)	-	-
FP43808EC E-CORE - FLAT BACKS Magnetics, a division of Spang & Co.	4,012	-	RFQ	Datasheet	-	Bulk	Active	Planar E	-	P	-	8.354 µH	-	Ungapped	-	2500	-	52.4	194.0	194.0	10200.0	Uncoated	0.325" (8.26mm)	1.500" (38.10mm)	1.000" (25.40mm)
C058040A2 HIGH FLUX 125 PERM KHAKI 040 SIZ Magnetics, a division of Spang & Co.	1,802	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	High Flux	0.425" (10.80mm)	66 nH	±8%	Ungapped	-	125	-	23.0	9.57	-	220.0	Coated	0.181" (4.60mm)	-	-
0R44020EC E CORE Magnetics, a division of Spang & Co.	3,975	-	RFQ	Datasheet	-	Bulk	Active	E	-	R	-	4.6 µH	-	Ungapped	-	2300	-	97.0	178.0	175.0	17300.0	Uncoated	0.827" (21.00mm)	1.693" (43.00mm)	0.598" (15.20mm)
0F44022EC E-SHAPE CORE Magnetics, a division of Spang & Co.	1,467	-	RFQ	Datasheet	-	Bulk	Active	E	-	F	-	7.6 µH	±25%	Ungapped	-	3000	-	97.0	233.0	233.0	22700.0	Uncoated	0.827" (21.00mm)	1.693" (43.00mm)	0.787" (20.00mm)
00K3515E026 KOOL MU 3515 E CORE Magnetics, a division of Spang & Co.	2,412	-	RFQ	Datasheet	-	Bulk	Active	E	-	Kool Mµ	-	56 nH	±8%	Ungapped	-	26	-	69.4	84.0	-	5830.0	Uncoated	0.557" (14.15mm)	1.360" (34.54mm)	-
0J41811UG POT CORE Magnetics, a division of Spang & Co.	4,940	-	RFQ	Datasheet	-	Bulk	Active	P	-	J	0.709" (18.00mm)	7.5 µH	-	Ungapped	-	5000	-	25.8	43.3	36.0	1120.0	Uncoated	0.209" (5.30mm)	-	-

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.