FERROXCUBE DATA SHEET 3C94 Material specification Supersedes data of September 2004 2008 Sep 01 Ferroxcube Material specification 3C94 3C94 SPECIFICATIONS A low frequency power material for use in power and general purpose transformers at frequencies up to 0.3 MHz. SYMBOL µi 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 100 °C; 100 kHz; 100 mT 100 °C; 100 kHz; 200 mT DC, 25 °C µa B PV ρ TC density VALUE 103 µ''s ≈ 470 mT 102 ≈ 380 ≈ 50 kW/m 3 10 10−1 ≈ 350 ≈5 ≥ 220 ≈ 4800 Ωm °C kg/m3 400 6000 300 4000 200 2000 100 2008 Sep 01 T (°C) 25 °C 100 °C B (mT) 8000 0 −25 250 Initial permeability as a function of temperature. f (MHz) 0 25 50 3C94 150 250 H (A/m) Fig.3 Typical B-H loops. 121 102 CBW238 500 µi 10 Complex permeability as a function of frequency. handbook, halfpage 3C94 150 1 Fig.1 CBW237 Fig.2 µ's 5500 ±25% 10000 50 3C94 µ's ,µ''s UNIT 2300 ±20% handbook, halfpage 0 −50 CBW236 104 handbook, halfpage Ferroxcube Material specification 3C94 CBW239 8000 25 °C 100 °C handbook, halfpage µa CBW240 104 handbook, halfpage 3C94 3C94 µ rev 6000 103 4000 102 2000 0 10 0 100 200 300 400 ^ Fig.4 Amplitude permeability as a function of peak flux density. 102 10 1 B (mT) Fig.5 Reversible permeability as a function of magnetic field strength. CBW241 104 handbook, halfpage T = 100 °C CBW242 800 handbook, halfpage 3C94 3C94 Pv Pv f B (kHz) (mT) 600 25 kHz 103 ^ (kW/m3) 200 kH z 100 kHz (kW/m3) 103 H (A/m) 100 200 200 100 100 25 100 200 400 102 200 10 10 1 102 ^ B (mT) 0 103 0 Fig.7 Fig.6 Specific power loss as a function of peak flux density with frequency as a parameter. 2008 Sep 01 122 40 80 T (°C) 120 Specific power loss for several frequency/flux density combinations as a function of temperature. Ferroxcube Material specification 3C94 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 01 123