Ceramic wire wound resistor

Typical Alumina characteristics include:
• Good strength and stiffness
• Good hardness and wear resistance
• Good corrosion resistance
• Good thermal stability
• Excellent dielectric properties (from DC to GHz frequencies)
• Low dielectric constant
• Low loss tangent


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Alumina ceramic (Aluminum Oxide or Al2O3) is an excellent electrical insulator and one of the most widely used advanced ceramic materials. Additionally, it is extremely resistant to wear and corrosion. Alumina components are used in a wide range of applications such as electronics, pump components and automotive sensors.