FERROXCUBE DATA SHEET 3F35 Material specification Supersedes data of September 2004 2008 Sep 01 Ferroxcube Material specification 3F35 3F35 SPECIFICATIONS A medium to high frequency power material for use in power and general purpose transformers at frequencies of 0.5 - 1 MHz. CONDITIONS VALUE 25 °C; ≤10 kHz; 0.25 mT 1400 ±20% µa 100 °C; 25 kHz; 200 mT ≈ 2400 B 25 °C; 10 kHz; 1200 A/m ≈ 500 100 °C; 10 kHz; 1200 A/m ≈ 420 100 °C; 400 kHz; 50 mT ≈ 60 100 °C; 500 kHz; 50 mT ≈ 90 100 °C; 500 kHz; 100 mT ≈ 700 DC; 25 °C ≈ 10 Ωm TC ≥ 240 °C density ≈ 4750 kg/m3 Pv ρ 3F35 µ's , µ''s UNIT µi CBW230 10 4 handbook, halfpage 10 3 mT 10 2 kW/m3 10 10 1 1 Fig.1 10 f (MHz) Complex permeability as a function of frequency. CBW255 5000 B (mT) 4000 400 3000 300 2000 200 1000 100 50 Fig.2 2008 Sep 01 150 T (°C) 25oC 100oC handbook, halfpage 3F35 µi 0 −50 CBW231 500 handbook, halfpage 10 2 3F35 0 250 50 Initial permeability as a function of temperature. 0 50 100 500 1000 H (A/m) Fig.3 Typical B-H loops. 181 Ferroxcube Material specification 3F35 CBW232 8000 25 oC o 100 C handbook, halfpage µa CBW233 10 4 handbook, halfpage 3F35 3F35 µ rev 6000 10 3 4000 10 2 2000 10 0 0 100 200 300 400 10 2 10 1 B (mT) Fig.4 Amplitude permeability as function of peak flux density. Fig.5 1200 handbook, halfpage 3F35 (kW/m 3) 3F35 Pv (kW/m3) 1M Hz 500 kHz Pv Reversible permeability as a function of magnetic field strength. CBW235 CBW234 10 4 handbook, halfpage T = 100 oC 3 H (A/m) 10 ^ f B (kHz) (mT) 900 10 3 500 100 1000 30 500 50 600 10 2 300 10 1 10 10 2 B (mT) 0 10 3 0 Fig.7 Fig.6 Specific power loss as a function of peak flux density with frequency as a parameter. 2008 Sep 01 182 40 80 T (°C) 120 Specific power loss for several frequency/flux density combinations as a function of temperature. Ferroxcube Material specification 3F35 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 01 183