FERROXCUBE DATA SHEET 3F31 Material specification 2013 Jun 05 Ferroxcube Material specification 3F31 3F31 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 µi 25 °C; ≤10 kHz; 0.25 mT 1800 ± 20% µa 100 °C; 25 kHz; 200 mT ≈ 3800 B 25 °C; 10 kHz; 1200 A/m ≈ 520 µ's , µ''s UNIT 100 °C; 400 kHz; 50 mT µ's µ''s mT 10 2 ≈ 80 kW/m3 100 °C; 500 kHz; 50 mT ≈ 175 DC; 25 °C ≈8 Ωm TC ≥ 230 °C density ≈ 4750 kg/m3 ρ 3F31 10 3 100 °C; 10 kHz; 1200 A/m ≈ 420 PV ABW481 10 4 handbook, halfpage 10 10 1 1 Fig.1 10 f (MHz) Complex permeability as a function of frequency. ABW455 5000 handbook, halfpage 3F31 µi 25oC 100oC 500 4000 ABW015 handbook, halfpage 3F31 B (mT) 400 3000 300 2000 200 1000 100 0 50 0 50 50 Fig.2 2013 Jun 05 150 T ( o C) 250 Initial permeability as a function of temperature. 0 50 100 500 1000 H (A/m) Fig.3 Typical B-H loops. 2 10 2 Ferroxcube Material specification 3F31 ABW443 8000 25 oC o 100 C handbook, halfpage µa 3F31 ABW477 10 4 handbook, halfpage 3F31 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. 10 2 10 1 Fig.5 H (A/m) 10 Reversible permeability as a function of magnetic field strength. ABW456 400 handbook, halfpage 10 4 handbook, halfpage T = 100 o 3F31 C Pv (kW/m 3) 3F31 Pv (kW/m 3 ) ABW048 3 f B (kHz) (mT) 700 kHz 40 0k Hz 200 kHz 300 10 3 200 10 2 500 50 200 100 400 50 100 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. 2013 Jun 05 3 40 80 T (o C) 120 Specific power loss for several frequency/flux density combinations as a function of temperature. Ferroxcube Material specification 3F31 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. 2013 Jun 05 4