ETD59/31/22-3F3 Ferroxcube

FERROXCUBE DATA SHEET ETD59/31/22 ETD cores and accessories Supersedes data of September 2004 2008 Sep 01Ferroxcube ETD cores and accessories ETD59/31/22 CORE SETS Effective core parameters SYMBOL PARAMETER VALUE UNIT handbook, halfpage 22.5 1 (I/A) core factor (C1) 0.378 mm 31.0 0.4 0.2 3 V effective volume 51500 mm e I effective length 139 mm e 2 A effective area 368 mm e 2 59.8 1.3 A minimum area 360 mm min 44.7 1.1 m mass of core half 130 g 21.65 0.45 21.65 0.45 MGC275 Dimensions in mm. Fig.1 ETD59/31/22 core half. Core halves Clamping force for A measurements, 70 20 N. Gapped cores are available on request. L A AIR GAP L GRADE TYPE NUMBER e (nH) (m) 3C90 6000 25% 1800 0 ETD59/31/22-3C90 3C94 6000 25% 1800 0 ETD59/31/22-3C94 3C95 7340 25% 2205 0 ETD59/31/22-3C95 3F3 5600 25% 1680 0 ETD59/31/22-3F3 Properties of core sets under power conditions B (mT) at CORE LOSS (W) at H=250A/m f = 25 kHz f= 100 kHz f = 100 kHz f= 100 kHz f = 400 kHz GRADE f = 25 kHz B=200 mT B = 100 mT B=200 mT B = 200 mT B =50 mT T = 100 C T = 100 C T=100 C T=25 C T=100 C T = 100 C 3C90 330 6.2 7.3 3C94 330 5.2 31 3C95 330 32.4 30.9 3F3 320 6.7 12.8 2008 Sep 01 2