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
00K4017E040 KOOL MU 4017 E CORE Magnetics, a division of Spang & Co.	2,901	-	RFQ	Datasheet	-	Bulk	Active	E	-	Kool Mu	-	76 nH	±8%	Ungapped	-	40	-	98.4	128.0	-	12600.0	Uncoated	0.830" (21.08mm)	1.687" (42.85mm)	0.424" (10.77mm)
FR43809EC E CORE Magnetics, a division of Spang & Co.	1,004	-	RFQ	Datasheet	-	Bulk	Active	Planar E	-	R	-	7.3 µH	-	Ungapped	-	2300	-	57.8	192.0	191.0	11100.0	Uncoated	0.375" (9.53mm)	1.500" (38.10mm)	1.000" (25.40mm)
00K4017E060 KOOL MU 4017 E CORE Magnetics, a division of Spang & Co.	3,317	-	RFQ	Datasheet	-	Bulk	Active	E	-	Kool Mu	-	105 nH	±8%	Ungapped	-	60	-	98.4	128.0	-	12600.0	Uncoated	0.830" (21.08mm)	1.687" (42.85mm)	0.424" (10.77mm)
ZF42908TC TOROID GREY COATED Magnetics, a division of Spang & Co.	4,572	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	F	1.177" (29.90mm)	1.902 µH	±20%	Ungapped	-	3000	-	73.2	36.0	-	2632.0	Epoxy	0.317" (8.05mm)	-	-
C055014A2 MPP 173 PERM GREY 020 SIZE Magnetics, a division of Spang & Co.	3,911	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	0.275" (6.99mm)	69 nH	±8%	Ungapped	-	173	-	13.6	4.7	-	64.0	Coated	0.135" (3.43mm)	-	-
00K4017E090 KOOL MU 4017 E CORE Magnetics, a division of Spang & Co.	4,838	-	RFQ	Datasheet	-	Bulk	Active	E	-	Kool Mu	-	151 nH	±8%	Ungapped	-	90	-	98.4	128.0	-	12600.0	Uncoated	0.830" (21.08mm)	1.687" (42.85mm)	0.424" (10.77mm)
C055234A2 MPP 173 PERM GREY 240 SIZE Magnetics, a division of Spang & Co.	3,457	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	0.285" (7.24mm)	75 nH	±8%	Ungapped	-	173	-	13.6	4.76	-	64.9	Coated	0.125" (3.18mm)	-	-
NL42316UG RM NH CORE Magnetics, a division of Spang & Co.	1,774	-	RFQ	Datasheet	-	Bulk	Active	RM	-	L	-	1.7 µH	±25%	Ungapped	-	900	-	38.4	63.0	55.4	2440.0	Uncoated	0.323" (8.20mm)	0.913" (23.20mm)	0.433" (11.00mm)
C058028A2 HIGH FLUX 160 PERM KHAKI 030 SIZ Magnetics, a division of Spang & Co.	1,498	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	High Flux	0.335" (8.51mm)	66 nH	±8%	Ungapped	-	160	-	17.9	5.99	-	107.0	Coated	0.150" (3.81mm)	-	-
0L42020UG PQ CORE Magnetics, a division of Spang & Co.	1,168	-	RFQ	Datasheet	-	Bulk	Active	PQ	-	L	-	1.17 µH	±25%	Ungapped	-	900	-	45.7	62.6	59.1	2850.0	Uncoated	0.398" (10.10mm)	0.839" (21.30mm)	0.551" (14.00mm)

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.