MP2008P4AS Hitachi Metals

High Performance Metglas Square Loop Cores Technical Bulletin Square Loop Cores manufactured with cobalt-based Typical DC Hysteresis Loop METGLAS Alloy 2714A M E TGLAS amorphous alloy 2714A allow the design of mag amps that can operate at higher frequencies than previously possible. Their combination of magnetic properties enable magnetic amplifiers to provide unparalleled precision and efficiency in output regulation. Mag amps are particularly well suited for outputs with currents of 1 amp to several tens of amps, although they are also used at lower currents where tight regulation and efficiency are extremely important. Conventional regulated outputs are limited at higher frequencies and output currents. Linear regulators cannot handle output currents that exceed one or two amperes efficiently, and thus require heat sinking schemes, which increase the size of the power supply. Independent switched-mode sub-regulators METGLAS Square Loop magnetic cores are specifically avoid this inefficiency, but usually require circuitry designed to exhibit an extremely square dc Hysteresis which is more complex, expensive and less reliable loop and high BSAT resulting in the following than a mag amp. important benefits: Standard sizes are available from 9.6 mm to Low saturated permeability 34.1 mm OD and the possibility of manufacturing custom sizes also exists. Core coatings meeting UL94V-0 and temperature class F are available Low coercive field indicating a small reset current upon request. Low profile enabling weight and volume reduction of up to 50% Low loss resulting from micro-thin METGLAS ribbon (18m) Physical Properties METGLAS Alloy 2714A Magnetic Properties METGLAS Square Loop Cores Ribbon Thickness (m) . 18 Saturation Flux Density (Tesla) .0.57 3 Density (g/cm ) .7.59 Saturation Magnetostriction (ppm) .<<1 Thermal Expansion (ppm/C) 12.7 Electrical Resistivity (--cm) 142 Crystallization Temperature (C) . 560 Squareness Ratio (%) >95 Curie Temperature (C) .225 Continuous Service Temperature (C) . <120 2 Tensile Strength (MN/m ) .1k-1.7k 2 Elastic Modulus (GN/m ) 100-110 Vickers Hardness (50g load) . 960 Copyright 2003-2011 Metglas , Inc. - 1 - All Rights Reserved www.hitachimetals.com ref:MAGA04202011 FLUX DENSITY (T) High Performance Metglas Square Loop Cores Technical Bulletin Copyright 2003-2011 Metglas , Inc. - 2 - All Rights Reserved www.hitachimetals.com ref:MAGA04202011