FERROXCUBE DATA SHEET 3S1 Material specification Supersedes data of September 2004 2008 Sep 01 Ferroxcube Material specification 3S1 3S1 SPECIFICATIONS A low frequency EMI-suppression material specified on impedance and optimized for frequencies up to 30 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; 1 MHz 25 °C; 10 MHz DC; 25 °C VALUE MBW268 10 5 handbook, halfpage 3S1 µ's , µ''s UNIT ≈ 4 000 10 4 ≈ 400 µ's mT ≈ 230 µ''s 10 3 ≥ 30 ≥ 60 ≈1 ≥ 125 ≈ 4 900 Ω Ωm °C kg/m3 2 10 10 2 10 1 1 f (MHz) 10 Note 1. Measured on a bead ∅5 × ∅2 × 10 mm. Fig.1 MBW270 MBW269 20000 handbook, halfpage 500 25 oC 100 oC handbook, halfpage 3S1 µi Complex permeability as a function of frequency. B (mT) 3S1 400 15000 300 10000 200 5000 100 0 50 0 50 Fig.2 2008 Sep 01 150 T ( o C) 250 25 0 25 50 150 250 H (A/m) Initial permeability as a function of temperature. Fig.3 Typical B-H loops. 204 Ferroxcube Material specification 3S1 MBW218 150 handbook, halfpage 3S1 Z (Ω) 100 50 0 1 10 102 f (MHz) 103 Fig.3 Impedance as a function of frequency, measured on a bead ∅5 × ∅2 × 10 mm. 2008 Sep 01 205 Ferroxcube Material specification 3S1 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 01 206