FERROXCUBE DATA SHEET E40/27/12 EI cores Supersedes data of September 2004 2008 Sep 01 Ferroxcube EI cores E40/27/12 CORES Effective core parameters of an E / I combination SYMBOL PARAMETER VALUE 40.2 ± 0.7 handbook, halfpage UNIT 29 ± 0.5 11.85 ± 0.35 Σ(I/A) core factor (C1) 0.542 mm −1 Ve effective volume 11100 mm 3 Ie effective length 77.5 mm Ae effective area 143 mm 2 Amin minimum area 133 mm 2 m mass of E core ≈ 42 g m mass of I core ≈ 17 g handbook, halfpage 20.25 ± 0.25 27.25 ± 0.25 Ordering information for I cores GRADE 11.85 ± 0.35 TYPE NUMBER 3C90 MFP098 I40/7.5/12-3C90 Dimensions in mm. Fig.1 E40/27/12 core. handbook, halfpage 11.85 ± 0.35 40.2 ± 0.7 7.5 ± 0.3 MFP099 Dimensions in mm. Fig.2 I40/7.5/12. Core halves for use in combination with an I core AL measured in combination with an I core, clamping force for AL measurements 40 ± 20 N; AL (nH) GRADE 4110 ± 25 % 3C90 AIR GAP (µm) µe ≈ 1770 ≈0 TYPE NUMBER E40/27/12-3C90 Properties of core sets under power conditions B (mT) at CORE LOSS (W) at GRADE H = 250 A/m; f = 25 kHz; T = 100 °C f = 25 kHz; ˆ = 200 mT; B T = 100 °C f = 100 kHz; B̂ =100 mT; T = 100 °C E40/27/12+I40/7.5/12-3C90 ≥ 330 ≤ 1.3 ≤ 1.3 2008 Sep 01 511 Ferroxcube EI cores E40/27/12 DATA SHEET STATUS DEFINITIONS DATA SHEET STATUS PRODUCT STATUS DEFINITIONS Preliminary specification Development This data sheet contains preliminary data. Ferroxcube reserves the right to make changes at any time without notice 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. 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 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. 2008 Sep 01 512