d a t a sh eet supersedes data of september 2004 2008 sep 01 ferroxcube ER28/14/11 er cores
2008 sep 01 770 ferroxcube er cores ER28/14/11 core sets effective core parameters symbol parameter value unit (i/a) core factor (c1) 0.786 mm ? 1 v e effective volume 5260 mm 3 i e effective length 64.0 mm a e effective area 81.4 mm 2 a min minimum area 77.0 mm 2 m mass of core half 14 g fig.1 ER28/14/11 core half. dimensions in mm. handbook, halfpage mgc189 14 0.2 9.9 0.25 21.75 0.5 28.55 0.55 11.4 0.35 9.75 0.4 core halves clamping force for a l measurements, 40 20 n. gapped cores are available on request. properties of core sets under power conditions grade a l (nh) e air gap ( m) type number 3c90 2 900 25% 1800 0 ER28/14/11-3c90 3c94 2 900 25% 1800 0 ER28/14/11-3c94 grade b (mt) at core loss (w) at h=250a/m; f = 25 khz; t = 100 c f = 25 khz; = 200 mt; t = 100 c f=100khz; = 100 mt; t=100 c f = 100 khz; = 200 mt; t = 100 c 3c90 320 0.63 0.67 ? 3c94 320 ? 0.5 3.2 b ? b ? b ?
2008 sep 01 771 ferroxcube er cores ER28/14/11 data sheet status definitions disclaimer life support applications ? these products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. ferroxcube customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify ferroxcube for any damages resulting from such application. product status definitions data sheet status product status definitions preliminary specification development this data sheet contains prelimin ary data. ferroxcube reserves the right to make changes at any time without not ice in order to improve design and supply the best possible product. product specification production this data sheet contains final specifications. ferroxcube reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. status indication definition prototype these are products that have been made as development samples for the purposes of technical evaluation only. the data for these types is provisional and is subject to change. design-in these products are recommended for new designs. preferred these products are recommended for use in current designs and are available via our sales channels. support these products are not recommended for new designs and may not be available through all of our sales channels. customers are advised to check for availability.
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