BC0968 Beryllium Oxide Ceramic Heat Sinks, BeO

Catalog No. BC0968
Size Customized
Material Beryllium Oxide
CAS Number 1304-56-9
Purity 99.90%
Chemical Formula BeO
Bulk Density(g/cm3) 3.01

SAM's beryllium oxide ceramic heat sinks are made of high purity beryllium oxide ceramics. SAM provides high-quality beryllium oxide ceramic products including heat sinks, crucibles, washers, thermocouple tubings and other custom-made substrates.

Related: Beryllium Oxide Ceramic Crucibles, Beryllium Oxide Ceramic Substrates


Beryllium Oxide Ceramic Heat Sinks Description

Beryllium oxide ceramic heat sinks are made of high purity beryllium oxide ceramics. Beryllium oxide, or beryllia, is the best ceramic thermal conductor and competes with the most conductive metals, and its electrical isolation is equivalent to that of alumina and the best electrical insulators. BeO heat sinks possess a unique combination of thermal, dielectric, and mechanical properties, and they are highly desirable in electronic applications.


Beryllium Oxide Ceramic Heat Sinks Specifications

Testing Entries Testing Conditions Properties
Flexural Strength / 170MPa
Thermal Conductivity 25 250W/m·k
100 190W/m·k
Permittivity 1MHz 20 6.5-7.5
10GHz 20 6.5-7.5
Volume Resistivity 25 10^14Ω·cm
300 10^11Ω·cm

Beryllium Oxide Ceramic Heat Sinks Applications

Beryllium oxide ceramic is the ideal material used in many high-performance semiconductor parts for applications such as radio equipment. Beryllium oxide ceramic heat sinks can insulate electronic devices electrically, and at the same time remove substantial quantities of heat from them to a chassis heat sink.  Beryllium oxide ceramic is used as a filler in some thermal interface materials such as thermal grease. Some power semiconductor devices have used beryllium oxide ceramic between the silicon chip and the metal mounting base of the package in order to achieve a lower value of thermal resistance than for a similar construction made with alumina. It is also used as a structural ceramic for high-performance microwave devices, vacuum tubes, magnetrons, and gas lasers. 




BC0969 Beryllium Oxide Ceramic Crucibles, BeO

BC0969 Beryllium Oxide Ceramic Crucibles, BeO

BC0970 Beryllium Oxide Ceramic Substrates, BeO

BC0970 Beryllium Oxide Ceramic Substrates, BeO


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