Magnetics Inc. issues 12 standard sizes of U configuration that are made of Kool Mμ powder material and are intended for a use as magnetic circuits of chokes operating with high values of electric current. U-configured cores are made of Kool Mμ material which has a permeability of 26μ, 40μ , 60μ, 90μ and is characterized by low losses and by values of magnetostriction that approach to zero. In contrast to ferrite materials and to cores based on silicon steel, Kool Mμ cores do not lose their parameters at high temperatures exceeding 200°C.

Examples of Designation

μ26 6527U 00K6527U026

00 — Code of Presorting (00 — ±8%)
K — Code of Kool Mµ material
6527 — Standard Size Code
U — Configuration Code (U-configured Core)
026 — Matrial (µ26) code
Measurement Unit: piece

Geometrical Dimensions of U-configured Cores

Standard Size	Order code	Geometrical Dimensions
Standard Size	Order code	A, mm	B, mm	С, mm	D(min), mm	E(min), mm	L, mm
3112U	00K3112U***	31,24	11,18	12,07	2,54	14,22	8,26
4110U	00K4110U***	40,64	11,18	9,53	2,54	23,88	8,38
4111U	00K4111U***	40,63	11,18	12,07	2,54	23,88	8,38
4119U	00K4119U***	40,64	11,18	19,05	2,54	23,88	8,38
5527U	00K5527U026	54,86	27,56	16,33	16,51	33,02	10,54
5529U	00K5529U026	54,86	27,56	23,16	16,51	33,02	10,54
6527U	00K6527U***	65,15	32,51	27,0	22,2	44,2	10,02
6533U	00K6527U026	65,15	32,51	20,02	19,41	39,24	12,51
7228U	00K7228U026	72,4	27,9	19,1	17,8	52,6	9,5
7236U	00K7236U***	72,39	35,56	20,85	21,36	43,69	13,89
8020U	00K8020U***	80,01	38,1	19,81	28,15	59,28	9,91
8038U	00K8038U***	80,01	38,1	23,04	22,43	48,26	15,37

Nomenclature List of U-configured Cores

Order code	A_L mH/1000 ±8%				Effective Parameters
Order code	26μ	40μ	60μ	90μ	Le, mm	Ae, mm²	Ve, mm³
00K3112U***	-	92	111	179	65,6	101	6,620
00K4110U***	-	56	77,5	109	85,2	80	6,810
00K4111U***	-	72	95	138	85,2	101	8,600
00K4119U***	-	110	151	218	85,2	160	13,630
00K5527U026	67	-	-	-	168	172	28,896
00K5529U026	85	-	-	-	168	244	40,992
00K6527U***	89	-	165	-	219	270	59,100
00K6533U026	82	-	-	-	199	250	49,750
00K7228U***	130	-	-	-	137	368	50,416
00K7833U026	87	-	-	-	219	190	63,510
00K8020U026	64	-	-	-	273	195	53,200
00K8038U***	97	-	179	-	237	354	83,9898

Note:
1. To download from table a necessary pdf-file describing a required U-configured core click a value of A_L corresponding with a material brand chosen by you.
2. "–" sign shows that a П-shaped Kool Mμ powder core is not issued with given permeability.

B-configured Plate

Magnetics Inc. issues 3 standard sized of B-configured plates made of Kool Mμ material and intended for a use as magnetic circuits of chokes operating with high values of electric current. B-configured plates are produced with a permeability of 26μ, 40μ and 60μ.

Examples of Designation

µ26 B6030 00K6030B026

00 — Code of Presorting on AL (00 — ± 8%)
K — Code of Kool Mμ Material
6030 — Standard Size Code
B — Configuration Code (U-configured Core)
026 — Material (μ26) Code
Measurement Unit: piece

Geometrical Dimensions of I-configured Cores

Standard Size	Order code	Geometrical Dimensions
Standard Size	Order code	A, mm	B, mm	С, mm
B4741	00K4741B***	47,5	41,0	27,5
B5528	00K5528B***	54,9	27,6	20,6
B6030	00K6030B***	60,0	30,0	15,0

Nomenclature List of I-configured Cores

Order code	A_L mH/1000 ±8%				Effective Parameters
Order code	26µ	40µ	60µ	90µ	L_e, cm	A_e, cm²	V_e, cm³
00K4741B***	+	+	+	-	*	*	53,6
00K5528B***	+	+	+	-	*	*	31,2
00K6030B***	+	+	+	-	*	*	27,0

Example of Produced Magnetic Circuits

Combination of powder cores consisting of B-configured plate and П-shaped U-configured core made of Magnetics Kool Mμ material may be used to develop powerful composite magnetic circuits of high-current chokes.

U configured Cores

Examples of Designation

Geometrical Dimensions of U-configured Cores

Nomenclature List of U-configured Cores

B-configured Plate

Examples of Designation

Geometrical Dimensions of I-configured Cores

Nomenclature List of I-configured Cores

Example of Produced Magnetic Circuits