FERROXCUBE DATA SHEET 3F3 Material specification Supersedes data of September 2004 2008 Sep 01 Ferroxcube Material specification 3F3 3F3 SPECIFICATIONS A medium frequency power material for use in power and general purpose transformers at frequencies of 0.2 - 0.5 MHz. SYMBOL CONDITIONS VALUE 25 °C; ≤10 kHz; 0.25 mT 2000 ±20% µa 100 °C; 25 kHz; 200 mT ≈ 4000 B 25 °C; 10 kHz; 1200 A/m ≈ 440 100 °C; 10 kHz; 1200 A/m ≈ 370 100 °C; 100 kHz; 100 mT ≤80 100 °C; 400 kHz; 50 mT ≤150 PV ρ DC; 25 °C µ's , µ''s UNIT µi µ's µ''s mT 10 2 kW/m 3 ≈2 Ωm ≥200 °C density ≈ 4750 kg/m3 10 10 1 1 Fig.1 CBW455 handbook, halfpage 25oC 100oC B (mT) 400 3000 300 2000 200 1000 100 f (MHz) 10 2 MBW015 500 4000 10 Complex permeability as a function of frequency. handbook, halfpage 3F3 µi 0 50 3F3 10 3 TC 5000 CBW481 10 4 handbook, halfpage 3F3 0 50 Fig.2 2008 Sep 01 150 T ( o C) 250 25 0 25 50 150 250 H (A/m) Initial permeability as a function of temperature. Fig.3 Typical B-H loops. 177 Ferroxcube Material specification 3F3 CBW443 8000 25 oC o 100 C handbook, halfpage µa 3F3 CBW477 10 4 handbook, halfpage 3F3 6000 µ rev 10 3 4000 2000 10 2 0 0 100 200 300 400 B (mT) 10 Fig.4 Amplitude permeability as function of peak flux density. Fig.5 MBW048 10 4 handbook, halfpage T = 100 oC CBW456 3F3 Pv (kW/m 3 ) f B (kHz) (mT) 300 25 kHz 10 3 Reversible permeability as a function of magnetic field strength. 400 700 kHz 400 kH z 200 kHz 100 kHz (kW/m 3) 3 H (A/m) 10 handbook, halfpage 3F3 Pv 10 2 10 1 200 100 400 50 200 10 2 25 200 100 100 100 10 1 10 10 2 B (mT) 10 0 3 0 Fig.7 Fig.6 Specific power loss as a function of peak flux density with frequency as a parameter. 2008 Sep 01 178 40 80 120 T (o C) Specific power loss for several frequency/flux density combinations as a function of temperature. Ferroxcube Material specification 3F3 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 01 179