431202041081 Ferroxcube

FERROXCUBE DATA SHEET ETD39/20/13 ETD cores and accessories Supersedes data of September 2004 2008 Sep 01Ferroxcube ETD cores and accessories ETD39/20/13 CORE SETS Effective core parameters handbook, halfpage 0.8 SYMBOL PARAMETER VALUE UNIT 14.2 19.8 0 1 0.2 (I/A) core factor (C1) 0.737 mm 3 V effective volume 11500 mm e I effective length 92.2 mm e 0 2 40 A effective area 125 mm e 1.8 1.6 2 29.3 A minimum area 123 mm min 0 0 m mass of core half 30 g 12.8 0.6 0 12.8 0.6 MGC262 Dimensions in mm. Fig.1 ETD39/20/13 core half. Core halves Clamping force for A measurements, 40 20 N. Gapped cores are available on request. L A AIR GAP L GRADE TYPE NUMBER e (nH) (m) 3C90 3000 25% 1760 0 ETD39/20/13-3C90 3C94 3000 25% 1760 0 ETD39/20/13-3C94 3C95 3650 25% 2145 0 ETD39/20/13-3C95 3F3 2800 25% 1640 0 ETD39/20/13-3F3 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 = 200 mT = 100 mT = 200 mT = 200 mT =50mT B B B B B T = 100 C T = 100 C T=100 C T=25 C T = 100 C T = 100 C 3C90 330 1.4 1.5 3C94 330 1.2 6.0 3C95 330 7.25 6.9 3F3 320 1.4 2.5 2008 Sep 01 2