3E27

FERROXCUBE DATA SHEET 3E27 Material specification Supersedes data of September 2004 2008 Sep 01 Ferroxcube Material specification 3E27 SPECIFICATIONS A medium permeability material with low losses and a relatively high Tc optimized for use in wideband transformers as well as EMI-suppression filters. SYMBOL µi B CONDITIONS 25 °C; ≤10 kHz; 0.25 mT 25 °C; 10 kHz; 1200 A/m 100 °C; 10 kHz; 1200 A/m tanδ/µi ρ TC density 25 °C; 100 kHz; 0.25 mT DC; 25 °C VALUE 6000 ± 20% ≈ 430 ≈ 270 ≤ 15 × 10−6 ≈ 0.5 ≥ 150 ≈ 4 800 Ωm °C kg/m3 102 10−2 3E27 105 handbook, halfpage µ's , µ'' s 104 CBW335 3E27 UNIT µs ' mT 103 µ'' s 10−1 1 f (MHz) 10 Fig.1 Complex permeability as a function of frequency. handbook, halfpage 20000 µi CBW336 3E27 handbook, halfpage 500 CBW337 B (mT) 400 25 °C 100 °C 3E27 15000 300 10000 200 5000 100 0 −50 50 150 T (°C) 250 0 −25 0 25 50 150 H (A/m) 250 Fig.2 Initial permeability as a function of temperature. Fig.3 Typical B-H loops. 2008 Sep 01 145 Ferroxcube Material specification 3E27 104 handbook, halfpage CBW338 3E27 handbook, halfpage 8000 µp CBW339 f = 10 kHz T = 25 °C 3E27 µ rev 103 6000 4000 2 µs 102 2000 0.1 µs 0.2 µs 1 µs 0.5 µs 10 1 10 102 H (A/m) 103 0 0 100 200 300 B (mT) ^ 400 Fig.4 Reversible permeability as a function of magnetic field strength. Fig.5 Pulse characteristics (unipolar pulses). 2008 Sep 01 146 Ferroxcube Material specification DATA SHEET STATUS DEFINITIONS DATA SHEET STATUS Preliminary specification Product specification PRODUCT STATUS Development DEFINITIONS 3E27 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. 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. Production 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 Prototype Design-in Preferred Support INDICATION DEFINITION 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. These products are recommended for new designs. These products are recommended for use in current designs and are available via our sales channels. 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 01 147