3F35

FERROXCUBE DATA SHEET 3F35 Material specification Supersedes data of September 2004 2008 Sep 01 Ferroxcube Material specification 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 µi µa B 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 3F35 10 4 handbook, halfpage µ's , µ'' s 10 3 CBW230 3F35 VALUE 1400 ±20% ≈ 2400 ≈ 500 ≈ 420 ≈ 60 ≈ 90 ≈ 700 ≈ 10 ≥ 240 ≈ 4 750 UNIT mT 10 2 Pv 100 °C; 400 kHz; 50 mT 100 °C; 500 kHz; 50 mT 100 °C; 500 kHz; 100 mT kW/m3 10 10 1 1 10 f (MHz) 10 2 ρ TC density DC; 25 °C Ωm °C kg/m3 Fig.1 Complex permeability as a function of frequency. CBW255 handbook, halfpage 5000 µi 4000 3F35 handbook, halfpage 500 CBW231 B (mT) 400 25oC 100oC 3F35 3000 300 2000 200 1000 100 0 −50 50 150 T (°C) 250 0 50 0 50 100 500 1000 H (A/m) Fig.2 Initial permeability as a function of temperature. Fig.3 Typical B-H loops. 2008 Sep 01 181 Ferroxcube Material specification 3F35 handbook, halfpage 8000 µa 6000 CBW232 25 oC o 100 C 3F35 10 4 handbook, halfpage µ rev 10 3 CBW233 3F35 4000 10 2 2000 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 (kW/m 3) 10 3 1M Hz 500 kHz CBW234 CBW235 3F35 handbook, halfpage 1200 3F35 ^ f B (kHz) (mT) 500 100 Pv Pv (kW/m3) 900 600 10 2 300 1000 500 10 1 10 10 2 B (mT) 10 3 0 0 40 80 T (°C) 120 30 50 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 01 182 Ferroxcube Material specification DATA SHEET STATUS DEFINITIONS DATA SHEET STATUS Preliminary specification Product specification PRODUCT STATUS Development DEFINITIONS 3F35 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 01 183