3E9

FERROXCUBE DATA SHEET 3E9 Material specification Supersedes data of September 2004 2008 Sep 01 Ferroxcube Material specification 3E9 SPECIFICATIONS A high permeability material optimized for small toroids used in miniaturized wideband transformers and delay lines. CONDITIONS µi B 25 °C; ≤10 kHz; 0.25 mT 25 °C; 10 kHz; 1200 A/m 80 °C; 10 kHz; 1200 A/m 25 °C; 10 kHz; 0.25 mT 25 °C; 30 kHz; 0.25 mT 25 °C; 10 kHz; 1.5 to 3 mT DC; 25 °C VALUE(1) 20000 ± 20% 10 4 3E9 10 5 µ's , µ'' s MFW042 3E9 µs ' UNIT ≈ 380 ≈ 210 ≤ 10 × 10−6 ≤ 50 × 10−6 ≤ 1 × 10−3 ≈ 0.1 ≥ 100 ≈ 5 000 mT µ'' s 10 3 tanδ/µi ηB ρ TC density Note T −1 Ωm °C kg/m3 10 10 2 2 10 1 1 f (MHz) 10 1. Measured on sintered, non-ground ring cores of dimensions Ø14 × Ø9 × 5 which are not subjected to external stresses. Fig.1 Complex permeability as a function of frequency. handbook, halfpage 40000 µi 30000 MFW043 handbook, halfpage 500 MFW044 3E9 B (mT) 400 25 oC 80 oC 3E9 300 20000 200 10000 100 0 50 0 50 150 T ( o C) 250 25 0 25 50 150 H (A/m) 250 Fig.2 Initial permeability as a function of temperature. Fig.3 Typical B-H loops. 2008 Sep 01 173 Ferroxcube Material specification 3E9 10 5 handbook, halfpage MFW045 3E9 µ rev 10 4 10 3 10 2 1 10 10 2 H (A/m) 10 3 Fig.4 Reversible permeability as a function of magnetic field strength. 2008 Sep 01 174 Ferroxcube Material specification DATA SHEET STATUS DEFINITIONS DATA SHEET STATUS Preliminary specification Product specification PRODUCT STATUS Development DEFINITIONS 3E9 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 01 175