UI17

UF & UI Core Features of UF cores and UI cores UF-core and UI-core, these Soft ferrite shapes are available in lamination materials (for stacking), powdered material (typically powdered iron), and ferrite materials. In laminated form, features of UF cores and UI cores are similar to that of the "C" core, and can take full advantage of grain orientation while their laminated counterparts only take about 60% to 80%. UF cores and UI cores possess excellent heat dissipation, and there is lots of room available for lead wires, but self-shielding is poor. UF core, UI core and other “U” cores have two core legs. Coils can be placed over either or both legs. Using coils on separate legs is great for high voltage isolation between coils. The mean turn length of two coils on separate legs (sharing the whole winding window) is smaller than 1 coil on one leg (occupying the whole winding window), hence the two coils connected in series has less winding resistance. Application of UF core and UI core: The U series core features wide distributing permeability and can be chosen and matched according to filter's frequency. As a power ferrite, it is a good choice using in fields of ignitor and energy-saving products. UF core and UI core may be used as “split-core” current transformers, output transformer core, line transformer core, and Inverter core. UF core is mainly application with line filters in color TV sets; UI core: Line filters, Inverter transformers Type UF8.5 UF8.6 UF9.8 UF9.8A UF10.1 UF10.5 UF10.5A UF12 UF15A UF15.7 UF16 Dimensions (mm) A 8.5±0.2 8.6±0.2 9.8±0.3 9.8±0.3 10.1±0.3 10.5±0.3 10.5±0.4 12.0±0.3 15.0±0.3 15.7±0.6 16.0 +0.4 B 6.4±0.2 6.45±0.2 7.1±0.2 7.1±0.2 7.5±0.25 7.8±0.4 7.8±0.3 9.2±0.3 11.4±0.3 9.7±0.25 10.0±0.3 C 3.45±0.15 3.6±0.2 2.9±0.2 2.7±0.2 2.9±0.2 5.0±0.2 5.0±0.2 3.95±0.15 6.4±0.2 6.0±0.3 6.0±0.2 Dmin 3.8 4.0 4.1 4.1 3.9 5.2 5.2 4.1 5.4 6.3 6.7 E 2.3 2.2±0.15 2.9±0.2 2.8 2.95±0.15 2.4±0.2 2.5 3.85 4.7 4.5±0.2 4.6±0.2 F 4.15±0.15 4.2±0.2 4.3±0.2 4.25±0.2 4.5±0.25 5.3±0.3 5.25±0.25 5.05±0.15 6.5±0.2 6.0±0.3 6.0±0.3 I -0.2 UF16A UF19 UF20 UI25.4 UF30 UF30A UF33 UI17 UI25 s 16.0±0.4 19.7±0.5 19.7±0.3 25.5 +0.4 -0.3 30.0±0.6 30.0±0.5 33.0±0.5 16.3±0.3 25.0±0.5 Core parameter 10.0±0.2 18.25±0.25 17.7±0.2 16.25 +0.25 -0 12.1±0.3 12.7±0.15 13.8±0.15 8.7±0.3 16.0±0.2 6.0±0.2 5.9±0.2 6.0±0.2 6.25 +0.1 -0.15 3.2±0.2 6.25±0.15 7.25 +0.2 -0.15 5.0±0.2 6.2±0.2 6.7 7.4 7.4 12.4 17.0 17.3 18.0 10.6 12.7 4.57 6.0 6.0±0.2 6.45 6.2±0.3 6.25 7.3 2.7±0.2 6.2±0.3 Al(nH/N²) 6.0±0.15 12.2±0.2 11.7±0.2 10.0 +0.3 -0 6.1±0.3 6.2 +0.25 -0 6.2 +0.25 -0 6.4 +0.3 -0.2 10.0±0.3 2.8±0.2 6.0±0.3 6.25 +0.1 -0.05 Type UF8.5 UF8.6 UF9.8 UF9.8A UF10.1 UF10.5 UF10.5A UF12 UF15A UF15.7 UF16 UF16A UF19 UF20 UI25.4 UF30 UF30A UF33 UI17 UI25 C1 (mm-1) 4.05 4.1 4.3 4.46 4.15 3.25 3.2 2.65 1.71 2.01 1.97 1.97 2.29 2.25 1.65 2.04 2.06 1.59 2.58 1.68 Ae (mm2) 7.76 7.8 8.1 7.60 8.6 12.7 12.5 15.6 30.5 24.8 27.2 25.9 35.3 36.0 38.9 38.3 39.1 53.7 14.0 38.9 Ie (mm) 31.4 32.2 34.33 34.2 35.7 39.9 40.1 41.3 52.3 50 51.9 51.0 81.0 81.0 64.3 77.9 80.4 85.7 36.1 65.5 Ve (mm3) 243 251.9 275.9 262 307 506.1 501 645 1600 1240 1412.6 1320 2860 2916 2500 2985.9 3140 4600 505.4 2551 weight (g/pr.) 1.2 1.3 1.4 1.3 1.5 2.8 2.5 3.2 8.0 6.5 7.4 6.9 15 15 19 15.3 17 23 2.6 12.8 F5(±25%) 675 1300 755 1500 930 1200 1840 2600 2600 1610 1590 2100 3080 F7(±25%) 830 960 1500 885 1005 1800 1160 1420 2380 2600 3300 2075 2080 2750 2600 4300 2800 3000 1500 2500 F10(±25%) 1215 1500 1800 1095 1100 2200 1685 3250 4000 2700 3800 6150 AL:1kHz,0.5mA,100Ts Copyright 2005 YUXIANG Magnetic Materials Ind. Co.,Ltd.All Rights Reserved. Add:16F1,jinyuan building,NO.57,hubin S.Rd.,Xiamen,China.361004 Tel : (86)592 2225286 (86)592 2219816 (86)592 2217138 Fax: (86)592 2207122 Email : magnetcom@gmail.com sales@magnet-tech.com