75 Series Cores

Economical Solution for Inverters and UPS

Magnetics 75-Series cores are composed of Iron, Silicon, and Aluminum, achieving better DC Bias performance than Kool Mμ^® while maintaining lower core losses than XFlux^®. The relatively high saturation flux density of 75-Series cores makes them a low-cost solution in applications where stable inductance under load is necessary, such as inverters for renewable energy sources and Uninterruptable Power Supplies (UPS). 75-Series cores also offer a lower cost alternative to High Flux and a substantial improvement in core loss and DC Bias performance when compared to Iron Powder.

Key Characteristics

Composition: Al • Si • Fe
Shapes: Toroid
Sizes: 24 mm to 134 mm
Permeability: 26µ, 40µ, 60µ
Coating Color: Black

For more information on Magnetics' 75-Series toroids, view our technical bulletin.

75 Series Part Number Identification

How to Order: Magnetics Powder Cores

75 Series Toroids

Core Data	A_L (nH/T²)			L_e Path Length mm	A_e Cross Section mm²	V_e Volume mm³	OD max mm	ID min mm	HT max mm
Core Data	26µ	40µ	60µ	L_e Path Length mm	A_e Cross Section mm²	V_e Volume mm³	OD max mm	ID min mm	HT max mm
310	19	29	43	56.7	31.7	1,800	23.7	13.3	8.4
350	22	34	51	58.8	38.8	2,280	24.4	13.7	9.7
930	32	50	75	63.5	65.4	4,150	27.7	14.1	12
548	28	41	61	81.4	65.6	5,340	33.7	19.5	11.4
585	16	25	38	89.5	46.6	4,150	35.2	22.5	9.8
324	24	37	56	89.8	67.8	6,090	36.7	21.5	11.4
254	35	54	81	98.4	107	10,600	40.8	23.3	15.4
454			108	102	147.5	15,100	43.84	23.39	17.27
089	37	57	86	116	134	15,600	47.6	27.9	16.2
725	76	117	175	114	262	29,700	51.31	23.9	21.6
438	59	90	135	107	199	21,300	47.6	23.3	19
109	33	50	75	143	144	20,700	58	34.7	14.9
195	60	92	138	125	229	28,600	58	25.6	16.2
620	82		189	144	360	51,800	62.9	31.7	25.9
070	65	100	143	158	314	49,700	69.4	34.7	21.4
778	88	135	205	177.2	492	81,500	78.9	38.3	26.8
906			85	196	221	43,400	79	48.2	17.1
725			175	114	262	29,700	51.51	24.00	21.59
715	32	49	73	127	125	15,900	51.7	30.9	14.4
102	48	74	111	243	358	86,900	103	55.8	17.9
337	68	105	158	324	678	220,000	134	77.2	26.8