FERROXCUBE DATA SHEET 3F5 Material specification Supersedes data of September 2004 2008 Sep 01 Ferroxcube Material specification 3F5 3F5 SPECIFICATIONS A very high frequency power material for use in power and general purpose transformers optimized for frequencies of 2 - 4 MHz. SYMBOL CONDITIONS VALUE µi 25 °C; ≤10 kHz; 0.25 mT 650 ±20% µa 100 °C; 25 kHz; 200 mT ≈ 1000 B 25 °C; 10 kHz; 1200 A/m ≈ 380 100 °C; 10 kHz; 1200 A/m ≈ 340 100 °C; 3 MHz; 10 mT ≈ 100 100 °C; 3 MHz; 30 mT ≈ 900 PV ρ DC; 25 °C MFW022 10 4 handbook, halfpage 3F5 µ's , µ''s UNIT 10 3 µ's µ''s mT 10 2 kW/m 3 10 10 1 ≈ 10 Ωm TC ≥ 300 °C density ≈ 4750 kg/m3 Fig.1 MFW023 2500 1 10 MFW024 500 3F5 25oC 100oC B (mT) 2000 400 1500 300 1000 200 500 100 10 2 Complex permeability as a function of frequency. handbook, halfpage µi f (MHz) 3F5 0 0 50 50 Fig.2 2008 Sep 01 150 250 o T ( C) 50 350 0 50 100 500 1000 H (A/m) Initial permeability as a function of temperature. Fig.3 Typical B-H loops. 193 Ferroxcube Material specification 3F5 o C o 25 100 C µa MFW026 10 4 MFW025 2000 handbook, halfpage 3F5 3F5 µ rev 1500 10 3 1000 10 2 500 10 0 0 100 200 300 10 2 10 1 400 H (A/m) 10 3 B (mT) Fig.4 Amplitude permeability as function of peak flux density. Fig.5 Reversible permeability as a function of magnetic field strength. MFW027 10 4 handbook, halfpage T = 100 oC (kW/m 3) 3F5 Pv (kW/m 3 ) 3M Hz 2M Hz 1 MH z Pv MFW028 1600 3F5 f B (MHz) (mT) 1200 3 30 2 30 3 20 3 10 10 3 800 10 2 400 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 01 194 40 80 T (o C) 120 Specific power loss for several frequency/flux density combinations as a function of temperature. Ferroxcube Material specification 3F5 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 01 195