FERROXCUBE DATA SHEET E8.8/4.1/2 E cores and accessories Supersedes data of September 2004 2008 Sep 01 Ferroxcube E cores and accessories E8.8/4.1/2 CORE SETS Effective core parameters SYMBOL PARAMETER 9 ±0.4 VALUE UNIT Σ(I/A) core factor (C1) 3.13 mm−1 Ve effective volume 78 mm3 Ie effective length 15.6 mm Ae effective area 5.0 mm2 Amin minimum area 3.6 mm2 m mass of core half ≈ 0.25 g 5.2 ±0.13 1.9 ±0.12 handbook, halfpage 2.03 +0.32 0 0 4.1 −0.2 2.0 0 −0.2 CBW228 Dimensions in mm. Fig.1 E8.8/4.1/2 core half. Core halves AL measured in combination with a non-gapped core half, clamping force for AL measurements, 5 ±2 N. GRADE AL (nH) AIR GAP (µm) µe TYPE NUMBER 3C96 480 ±25% ≈ 1 190 ≈0 E8.8/4.1/2-3C96 3F3 460 ±25% ≈ 1 140 ≈0 E8.8/4.1/2-3F3 3F35 380 ±25% ≈ 940 ≈0 E8.8/4.1/2-3F35 3F4 280 ±25% ≈ 695 ≈0 E8.8/4.1/2-3F4 Properties of core sets under power conditions B (mT) at CORE LOSS (W) at H = 250 A/m; f = 25 kHz; T = 100 °C f = 100 kHz; ˆ = 100 mT; B T = 100 °C f = 100 kHz; ˆ = 200 mT; B T = 100 °C f = 400 kHz; ˆ = 50 mT; B T = 100 °C 3C96 ≥340 ≤ 0.0055 ≤ 0.032 ≤ 0.014 3F3 ≥300 ≤ 0.01 − ≤ 0.014 3F35 ≥300 − − ≤ 0.007 3F4 ≥250 − − − GRADE 2008 Sep 01 307 Ferroxcube E cores and accessories E8.8/4.1/2 Properties of core sets under power conditions (continued) B (mT) at GRADE CORE LOSS (W) at H = 250 A/m; f = 25 kHz; T = 100 °C f = 500 kHz; ˆ = 50 mT; B T = 100 °C f = 500 kHz; ˆ = 100 mT; B T = 100 °C f = 1 MHz; ˆ = 30 mT; B T = 100 °C f = 3 MHz; ˆ = 10 mT; B T = 100 °C 3C96 ≥340 ≤ 0.029 − − − 3F3 ≥300 − − − − 3F35 ≥300 ≤ 0.011 ≤ 0.082 − − 3F4 ≥250 − − ≤ 0.023 ≤ 0.037 2008 Sep 01 308 Ferroxcube E cores and accessories E8.8/4.1/2 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 01 309