FERROXCUBE DATA SHEET 3S4 Material specification Supersedes data of September 2004 2008 Sep 01 Ferroxcube Material specification 3S4 3S4 SPECIFICATIONS Wideband EMI-suppression material specified on impedance and optimized for frequencies from 10 to 300 MHz. SYMBOL µi B Z(1) ρ TC density CONDITIONS 25 °C; ≤10 kHz; 0.25 mT 25 °C; 10 kHz; 1200 A/m 100 °C; 10 kHz; 1200 A/m 25 °C; 3 MHz 25 °C; 30 MHz 25 °C; 100 MHz 25 °C; 300 MHz DC; 25 °C VALUE ≈ 1 700 10 3 µ's µ''s mT ≈ 170 10 2 ≥ 25 ≥ 60 ≥ 80 ≥ 90 ≈ 103 ≥ 110 ≈ 4 800 Ω 10 10 1 Fig.1 1. Measured on a bead ∅5× ∅2 × 10 mm. 10 f (MHz) 10 2 Complex permeability as a function of frequency. MBW199 MBW191 5000 1 Ωm °C kg/m3 Note handbook, halfpage 3S4 µ's , µ''s UNIT ≈ 320 MBW195 10 4 handbook, halfpage 500 25oC 100oC handbook, halfpage 3S4 B (mT) µi 4000 400 3000 300 2000 200 1000 100 3S4 0 0 50 50 Fig.2 2008 Sep 01 150 T (oC) 50 250 Initial permeability as a function of temperature. 0 50 100 500 1000 H (A/m) Fig.3 Typical B-H loops. 212 Ferroxcube Material specification 3S4 MBW221 150 handbook, halfpage 3S4 Z (Ω) 100 50 0 1 10 102 f (MHz) 103 Fig.4 Impedance as a function of frequency measured on a bead ∅5 × ∅2 × 10 mm. 2008 Sep 01 213 Ferroxcube Material specification 3S4 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 01 214