FERROXCUBE DATA SHEET 4A20 Material specification New data 2008 Sep 01 Ferroxcube Material specification 4A20 4A20 SPECIFICATIONS High permeability NiZn ferrite for use in wideband EMI-suppression (10 - 300 MHz) as well as RF wideband and balun transformers. SYMBOL CONDITIONS VALUE µi 25 °C; ≤10 kHz; 0.25 mT 2000 ± 20 % B 25 °C; 10 kHz; 1200 A/m ≈ 260 80 °C; 10 kHz; 1200 A/m ≈ 150 DC; 25 °C ≈ 105 Ωm TC ≥ 100 °C density ≈ 5000 kg/m 3 ρ MFP121 10 4 handbook, halfpage UNIT 4A20 µ's µ's , µ''s 10 3 mT µ''s 10 2 10 10 1 1 Fig.1 500 25 oC 80 oC B (mT) 4A20 4000 400 3000 300 2000 200 1000 100 2 4A20 0 0 50 50 Fig.2 2008 Sep 01 10 Complex permeability as a function of frequency. handbook, halfpage µi f (MHz) MFP123 MFP122 5000 handbook, halfpage 10 150 T ( o C) 25 250 0 25 50 150 250 H (A/m) Initial permeability as a function of temperature. Fig.3 226 Typical B-H loops. Ferroxcube Material specification 4A20 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 01 227