Standard Package Product Description Transistor Packages Rectifier Thyristor Power Modules Laser Diode Microwave Tube Materials:Silicon Aluminum Alloys(AlSi Alloys) Configuration:Platforms,Plug-ins,Flatpacks,TO Headers etc. Advantages Adjustable CTE, compatibility with assembly components; Low density,making it ideal for weight sensitive application; High thermal Conductivity; Ease of manufacture,plate and weld; Alternatives to Kovar,Cu-W,Cu-Mo and AlSiC in some electronic packaging fields. AlSi Alloys Performance Parameters: Content Density g/cm³ CTE ppm/℃ Thermal Conductivity W/mK Tensile Strength MPa Yield Strength MPa Poisson's Ratio Elongation % Elastic Modulus GPa Al-27%Si 2.6 17 175 170 130 0.29 3.8 91 Al-42%Si 2.55 13.5 160 200 187 0.29 1 105 Al-50%Si 2.5 11.5 140 220 210 0.28 <1 108 Al-60%Si 2.46 10 125 210 210 0.27 <1 111 Al-70%Si 2.43 7.5 120 135 135 0.27 <1 114