3F4

FERROXCUBE DATA SHEET 3F4 Material specification Supersedes data of September 2004 2008 Sep 01 Ferroxcube Material specification 3F4 SPECIFICATIONS A high frequency power material for use in power and general purpose transformers at frequencies of 1 - 2 MHz. SYMBOL µi µa B CONDITIONS 25 °C; ≤10 kHz; 0.25 mT 100 °C; 25 kHz; 200 mT 25 °C; 10 kHz; 1200 A/m 100 °C; 10 kHz; 1200 A/m PV 100 °C; 1 MHz; 30 mT 100 °C; 3 MHz; 10 mT ρ TC density DC; 25 °C VALUE 900 ±20% ≈ 1 700 ≈ 410 ≈ 350 ≈ 130 ≈ 220 ≈ 10 ≥ 220 ≈ 4 700 Ωm °C kg/m3 Fig.1 Complex permeability as a function of frequency. kW/m 3 10 10 1 3F4 10 4 handbook, halfpage µ's , µ'' s 10 3 µs ' µ'' s MBW025 3F4 UNIT mT 10 2 1 10 f (MHz) 10 2 handbook, halfpage 2000 µi MBW034 3F4 handbook, halfpage 500 MBW017 B (mT) 400 25oC 100oC 3F4 1500 300 1000 200 500 100 0 50 0 50 150 T ( o C) 250 50 0 50 100 500 H (A/m) 1000 Fig.2 Initial permeability as a function of temperature. Fig.3 Typical B-H loops. 2008 Sep 01 185 Ferroxcube Material specification 3F4 handbook, halfpage 2000 µa 1500 MBW046 25 C o 100 C o 10 4 handbook, halfpage MBW035 3F4 µ rev 10 3 3F4 1000 10 2 500 0 0 100 200 300 B (mT) 400 10 1 10 10 2 3 H (A/m) 10 Fig.4 Amplitude permeability as function of peak flux density. Fig.5 Reversible permeability as a function of magnetic field strength. 10 4 handbook, halfpage T = 100 oC 1 MH z 400 k Hz 200 1 0 0 kHz kHz 3M Hz 2M Hz MBW047 3F4 handbook, halfpage 400 MBW056 3F4 f B (kHz) (mT) 3000 500 1000 10 50 30 25 Pv (kW/m 3) 10 3 Pv (kW/m 3 ) 300 25 k Hz 200 10 2 1000 100 10 1 10 10 2 B (mT) 10 3 0 0 40 80 120 T (o C) Fig.7 Fig.6 Specific power loss as a function of peak flux density with frequency as a parameter. Specific power loss for several frequency/flux density combinations as a function of temperature. 2008 Sep 01 186 Ferroxcube Material specification DATA SHEET STATUS DEFINITIONS DATA SHEET STATUS Preliminary specification Product specification PRODUCT STATUS Development DEFINITIONS 3F4 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 01 187