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Eccosorb®MFS High-Loss, Non-Rigid, Magnetically Loaded Stock HIGH-LOSS NON-RIGID ABSORBER Eccosorb MFS is a high-loss stock based on silicone. This product was developed to overcome the physical limitations of rigid high-loss absorbers. Being flexible, Eccosorb MFS can be fitted to compound curves. It has low outgassing properties for space applications. FEATURES AND BENEFITS MARKETS • Flexible structure for improved fit • Low outgassing for space applications • Good adhesion to metals during t° cycling due to elastomeric properties • Commercial Telecom • Security and Defense SPECIFICATIONS TYPICAL PROPERTIES ECCOSORB MFS Frequency Range 1 – 18 GHz Service Temperature °C (°F) Density g/cc 70 10 10 -6 63 x 10 Thermal Conductivity W/mK Water Absorption % 24 Hours 0.865 10 Data for design engineer guidance only. Observed performance varies in application. Engineers are reminded to test the material in application. APPLICATIONS • Eccosorb MFS is engineered for terminations, loads, attenuators in microwave circuits, and in waveguides and transmission systems. • It can be bonded to low-expansion-coefficient ceramics, such as sintered ferrites. AVAILABILITY • Eccosorb MFS is available in two types, Eccosorb® MFS-117 and Eccosorb® MFS-124 • Sheets: 30.5cm x 30.5cm (12” x 12” ) in thicknesses of 0.32cm (1/8”), 0.64cm (1/4”), 1.27cm (1/2”) & 2.54cm (1.0”) • Bars: 30.5cm long (12”) in squares of 0.64, 1.27, 2.54 cm (1/4, 1/2, 1.0”). • It can be supplied with a Pressure Sensitive Adhesive (PSA). • Available in other thicknesses, sizes, and customer specified shapes upon request INSTRUCTION FOR USE Americas: +1.866.928.8181 Europe: +49.(0)8031.2460.0 Asia: +86.755.2714.1166 www.lairdtech.com • Can be cut with a sharp knife, sawed, sanded, and ground to form pyramids, cones and other machines parts. Magnetic holding devices can be used for machine operations. Eccosorb®MFS TEMPERATURE CYCLING Many rigid materials cannot be bonded to metal surfaces and then temperature cycled. Temperature changes break this bond. This is due to the difference in the thermal expansion coefficient between the metal and the load material. Since Eccosorb MFS is a true elastomer, it deforms slightly to accommodate dimensional changes. In addition, a pyramid or wedge of Eccosorb MFS can be bonded over a large area to a waveguide wall to improve heat dissipation. Typical Electrica l Properties GHz MFS-117 MFS-124 10- 7 10- 6 10- 5 10- 4 10- 3 10- 2 10- 1 1.0 3.0 8.6 10.0 18.0 K' 195 158 120 85 62 48 38 28 22.9 21.4 21 20.6 tan δ d 0.18 0.21 0.23 0.24 0.22 0.18 0.12 0.09 0.06 0.02 0.02 0.02 K" 35 33 28 20 14 8.6 4.6 2.5 1.4 0.42 0.42 0.41 M' 5 5 5 5 5 5 4.8 4.1 3.4 1.2 1.1 1 tan δ m 0 0 0 0 0 0 0.1 0.2 0.39 1.36 1.5 2 M" 0 0 0 0 0 0 0.48 0.82 1.33 1.63 1.7 2 dB/cm 0 0 0 0 0 0.03 0.27 2.8 11 46 56 119 dB/in 0 0 0 0 0 0.08 0.69 7.1 28 117 142 302 lZl/Z0 0.16 0.18 0.2 0.24 0.28 0.32 0.36 0.39 0.4 0.3 0.31 0.33 K' 260 205 145 95 70 52 40 32 25.8 23.8 23.6 23 tan δ d 0.4 0.39 0.36 0.31 0.26 0.2 0.14 0.08 0.07 0.05 0.03 0.04 K" 104 80 52 29 18 1 5.6 2.6 1.8 1.19 0.71 0.92 M' 7 6.9 6.8 6.7 6.6 6.3 6 5 3.8 2.5 1.5 1 tan δ m 0 0 0 0 0 0 0.2 0.45 0.69 1.1 1.4 2.5 M" 0 0 0 0 0 0 1.2 2.3 2.62 2.75 2.1 2.5 dB/cm 0 0 0 0 0 0.03 0.48 6.5 20 63 67 149 dB/in 0 0 0 0 0 0.08 1.2 16.51 50 160 170 378 lZl/Z0 0.16 0.18 0.21 0.26 0.3 0.34 0.39 0.42 0.42 0.39 0.33 0.34 *Note: Attenuation is a theoretical property calculated from the Complex Permittivity and Complex Permeability of a lossy material and is strictly a means of comparing one absorbing material to another. The attenuation properties are not an indication of how the material will perform inside a microwave device. The frequencies of use recommended for Eccosorb MFS-117 & Eccosorb MFS-124 in the Typical Properties Table of this bulletin are based on application experience at Laird. Typical Electrical Properties Legend K' Real part of the permittivity (dielectric constant) tan δ d Dielectric loss tangent K" Imaginary part of the permittivity (loss) M' Real part of the magnetic permeability tan δ m Magnetic loss tangent M" Imaginary part of the magnetic permeability (loss) dB/cm Attenuation per unit distance dB/in Attenuation per unit distance lZl/Z0 Normalized impedance magnitude ratio RFP-DS-MFS 100915 Any information furnished by Laird Technologies, Inc. and its agents is believed to be accurate and reliable. All specifications are subject to change without notice. Responsibility for the use and application of Laird Technologies materials rests with the end user. Laird Technologies makes no warranties as to the fitness, merchantability, suitability or non- infringement of any Laird Technologies materials or products for any specific or general uses. Laird Technologies shall not be liable for incidental or consequential damages of any kind. All Laird Technologies products are sold pursuant to the Laird Technologies’ Terms and Conditions of sale in effect from time to time, a copy of which will be furnished upon request. © Copyright 2015 Laird Technologies, Inc. All Rights Reserved. Laird, Laird Technologies, the Laird Technologies Logo, and other marks are trademarks or registered trademarks of Laird Technologies, Inc. or an affiliate company thereof. Other product or service names may be the property of third parties. Nothing herein provides a license under any Laird Technologies or any third party intellectual property rights. 2