Ferrite Cores

Mfr Part #	Qty	Price	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<sup>-1</sup>	Effective Length (le) mm	Effective Area (Ae) mm²	Minimum Core Cross Section (Amin) mm²	Effective Magnetic Volume (Ve) mm³	Finish	Height	Length	Width
B66317G0100X187 FERRITE CORE E N87 1PC EPCOS - TDK Electronics	2,686	0.79000	Active	E	E 25 x 13 x 7	N87	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	0.504" (12.80mm)	0.984" (25.00mm)	0.295" (7.50mm)	Details
6695212021 95 PQ CORE SET Fair-Rite Products Corp.	359	1.62000	Active	PQ	-	95	-	-	±25%	Ungapped	-	3000	72	45.2	62.5	60.8	2526	Uncoated	-	0.807" (20.50mm)	0.551" (14.00mm)	Details
T60006L2045V118 NANOCRYSTALLINE CORE, 45X30X15, VACUUMSCHMELZE	198	16.24000	Active	Toroid	-	-	1.906" (48.40mm)	24.3 µH	-	Ungapped	-	-	-	118	85.5	-	-	Uncoated	0.717" (18.20mm)	-	-	Details
B66311G0100X187 FERRITE CORE EPCOS - TDK Electronics	4,027	0.18910	Not For New Designs	E	E 20 x 10 x 6	N87	-	-	-	-	-	2200	1.44	46.3	32.1	31.9	1490	Uncoated	0.398" (10.10mm)	0.803" (20.40mm)	0.232" (5.90mm)	Details
B66287K0000X197 I FERRITE CORES EPCOS - TDK Electronics	6,165	2.10940	Active	I	I 32 x 3 x 20	N97	-	-	±0.25%	-	-	-	-	-	-	-	-	Uncoated	0.124" (3.15mm)	1.250" (31.75mm)	0.801" (20.35mm)	Details
B64290L0699X087 FERRITE CORE TOROID 5UH N87 EPCOS - TDK Electronics	242	21.35000	Active	Toroid	-	N87	2.571" (65.30mm)	5 µH	±25%	Ungapped	-	2200	0.5	152.1	305.9	-	46530	Epoxy	1.047" (26.60mm)	-	-	Details
B66413U0100K187 FERRITE CORE EFD N87 1PC EPCOS - TDK Electronics	8,507	0.80000	Active	EFD	EFD 15 x 8 x 5	N87	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	0.295" (7.50mm)	0.591" (15.00mm)	0.183" (4.65mm)	Details
B65885A0000R095 FERRITE CORE PQ 2.75UH N95 2PCS EPCOS - TDK Electronics	1,140	3.04000	Active	PQ	PQ 16 x 11.6	N95	-	2.75 µH	-20%, +30%	Ungapped	1400	2000	0.641	27	42.1	38.5	1136	Uncoated	0.228" (5.80mm)	0.646" (16.40mm)	0.441" (11.20mm)	Details
7898400121 98 PLANAR EI CORE SET Fair-Rite Products Corp.	8,171	0.78000	Active	E	-	-	-	-	±25%	Ungapped	-	2400	109	16.6	15.2	15	252	Uncoated	-	0.551" (14.00mm)	0.197" (5.00mm)	Details
B66314G0000X127 FERRITE CORE E N27 1PC EPCOS - TDK Electronics	4,166	0.26730	Active	E	E 21 x 9 x 5	N27	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.343" (8.70mm)	0.831" (21.10mm)	0.197" (5.00mm)	Details
B65887P0000R087 FERRITE CORE EPCOS - TDK Electronics	18	11.31000	Active	RM	-	N87	-	7.1 µH	-20%, +30%	Ungapped	1430	2200	0.25	50.9	201	170	10230	Uncoated	-	1.661" (42.20mm)	0.748" (19.00mm)	Details
B67385P0000X187 FERRITE CORE I N87 1PC EPCOS - TDK Electronics	195	33.09000	Active	I	I 126 x 28 x 20	N87	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	1.102" (28.00mm)	4.961" (126.00mm)	0.787" (20.00mm)	Details
B65855A0063D038 FERRITE CORE EP 63NH T38 2PCS EPCOS - TDK Electronics	3,751	0.42590	Not For New Designs	EP	EP 5	T38	-	63 nH	±8%	Gapped	158	-	3.14	9.73	3.09	2.3	30	Uncoated	0.112" (2.85mm)	0.242" (6.15mm)	0.154" (3.90mm)	Details
5975000321 75 TOROID PLASTIC COATED Fair-Rite Products Corp.	3,141	0.92000	Active	Toroid	-	75	0.530" (13.45mm)	2.725 µH	-25%, +20%	Ungapped	-	5000	2.2904	29.5	12.9	-	381	Plastic	0.213" (5.40mm)	-	-	Details
B65981B0000R087 PQ50/40 N87 UNGAPPED EPCOS - TDK Electronics	3,410	8.64140	Active	PQ	PQ 50 x 40	N87	-	7.6 µH	-20%, +30%	Ungapped	1710	-	0.28	93	334	314	31250	Uncoated	0.787" (20.00mm)	1.969" (50.00mm)	1.260" (32.00mm)	Details
B66307G0500X187 FERRITE CORE E N87 1PC EPCOS - TDK Electronics	7,555	0.84000	Active	E	E 16 x 8 x 5	N87	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	0.323" (8.20mm)	0.630" (16.00mm)	0.185" (4.70mm)	Details
5977002721 77 TOROID PLASTIC COATED Fair-Rite Products Corp.	234	5.60000	Active	Toroid	-	77	1.449" (36.80mm)	2.25 µH	-30%, +25%	Ungapped	-	2000	1.1361	89.1	78.4	-	6991	Plastic	0.539" (13.70mm)	-	-	Details
B65879A0000R087 FERRITE CORE PQ 6.3UH N87 2PCS EPCOS - TDK Electronics	485	5.24000	Active	PQ	PQ 32 x 20	N87	-	6.3 µH	-20%, +30%	Ungapped	1580	2200	0.314	48.4	154.2	127.5	7460	Uncoated	0.404" (10.25mm)	1.260" (32.00mm)	0.866" (22.00mm)	Details
B66483G0000X195 FERRITE CORE EPCOS - TDK Electronics	434	2.96000	Active	-	-	N95	-	-	-	-	-	3000	-	-	-	-	-	-	-	0.787" (20.00mm)	0.551" (14.00mm)	Details
B65859A0250E038 FERRITE CORE EPX 250NH T38 2PCS EPCOS - TDK Electronics	1,617	0.89240	Active	EPX	EPX 10	T38	-	250 nH	±7%	Gapped	271	2300	1.37	21.7	15.9	13.2	345	Uncoated	0.205" (5.20mm)	0.465" (11.80mm)	0.309" (7.85mm)	Details
B64290L0632X027 FERRITE CORE TOROID 1.94UH N27 EPCOS - TDK Electronics	1,072	1.11000	Active	Toroid	-	N27	0.835" (21.20mm)	1.94 µH	±25%	Ungapped	-	2000	1.3	43.55	33.63	33.63	1465	Epoxy	0.319" (8.10mm)	-	-	Details
B64290L0038X087 FERRITE CORE TOROID 900NH N87 EPCOS - TDK Electronics	10,097	0.33000	Active	Toroid	-	N87	0.425" (10.80mm)	900 nH	±25%	Ungapped	-	2200	3.07	24.07	7.83	-	188	Epoxy	0.187" (4.75mm)	-	-	Details
B66371G0000X187 FERRITE CORE E N87 1PC EPCOS - TDK Electronics	6,112	15.57000	Active	E	E 70 x 33 x 32	N87	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	1.307" (33.20mm)	2.776" (70.50mm)	1.260" (32.00mm)	Details
B64290L0697X087 FERRITE CORE TOROID 2.95UH N87 EPCOS - TDK Electronics	2,349	0.61310	Active	Toroid	-	N87	0.768" (19.50mm)	2.95 µH	±25%	Ungapped	-	2200	0.94	31.03	33.14	-	1029	Epoxy	0.264" (6.70mm)	-	-	Details

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