Performance characteristic: 
High permeability (smaller angle difference and the ratio difference), and compared to Permalloy higher saturation flux density, low loss, excellent temperature stability.

No	Core dimension
	OD(mm)	ID(mm)	HT(mm)
1	17.8	8.5	9.2
2	20	11	9.4
3	20	9.3	12.1
4	21.8	10.8	10
5	26.6	12.3	13.5
6	28	13.9	13
7	31.4	33.5	12.6
8	34.2	18.1	13.2
9	36.8	26	10
10	39.8	21	12.3
11	38.9	28.5	8
12	41.2	29.7	8.5