U25/16/6-3C90 Ferroxcube

FERROXCUBE DATA SHEET U25/16/6 U, I cores and accessories Supersedes data of September 2004 2008 Sep 01Ferroxcube U25/16/6 U, I cores and accessories (376U250) CORE SETS Effective core parameters SYMBOL PARAMETER VALUE UNIT + 0.5 handbook, halfpage 25.4 1 (I/A) core factor (C1) 2.07 mm 0.4 3 12.7 0.25 V effective volume 3380 mm e I effective length 83.6 mm e 2 A effective area 40.3 mm 9.5 e 0.13 15.9 m mass of core half 8.0 g 0.13 6.4 0.13 MBE980 Dimensions in mm. Fig.1 U25/16/6 core half. Core halves A measured on a combination of 2 U cores. L A L GRADE TYPE NUMBER e (nH) 3C81 1400 25% 2300 U25/16/6-3C81 3C90 1200 25% 2300 U25/16/6-3C90 3C91 1400 25% 2300 U25/16/6-3C91 3C94 1200 25% 2300 U25/16/6-3C94 3C11 2050 25% 3380 U25/16/6-3C11 3E27 2500 25% 4130 U25/16/6-3E27 Properties of core sets under power conditions B (mT) at CORE LOSS (W) at H = 250 A/m f= 25 kHz f = 100 kHz f = 100 kHz f = 400 kHz GRADE f = 25 kHz = 200 mT =100 mT = 200 mT =50mT B B B B T = 100 C T=100 C T = 100 C T = 100 C T = 100 C 3C81 320 0.78 3C90 320 0.4 0.4 (1) (1) 3C91 320 0.23 1.6 3C94 320 0.3 2.0 Note 1. Measured at 60 C. 2008 Sep 01 1319