What is a ceramic resistor?
Resistors are electronic components that provide a specific amount of resistance to electrical current in electronic circuits. Ceramic resistors may fall into many different classes of resistors. Which classes are often dependent on who describes the resistor. For a layman or electrician, a ceramic resistor is often any resistor closed in ceramics. On the other hand, engineers and technicians define ceramic resistors as those who use ceramics to control the resistance value of the resistor. In the carbon film or resistive wire resistor, the resistance material is held on the outside of the ceramic core, usually in the shape of a cylinder. These cores provide a non -conductive base to maintain the conductive ingredients of the resistor on the spot and give the resistor its general shape and size.
While excellent electrical insulator, ceramics is also an excellent thermal conductor. This Ceramic feature allows the cores of these resistors to endure the power through electric current with low to moderate power withouteHent and damage. However, the use of Ceramic is not limited to the internal components of resistors.
Due to its insulation and thermal properties, ceramics are used for externally insulation and provision of even greater thermal endurance by some types of resistors. The most common of these types are resistor resistors that revolve around the ceramic core and then closed in a block or cylinder of ceramic material. The combination of external ceramics with metals and internal ceramics allows these types of resistors to endure very high temperatures without damage.
The construction of a real ceramic resistor, often called a carbon composite resistor, differs from most other types, although it also uses ceramics. Ceramic resistors are made of a combination of fine -spray carbon and ceramic material. These two powders are combined in specific ratios for determining the final resistor value.
Higher pomA carbon in a mixture, a lower resistance valve that will have a ceramic resistor. A higher ratio of ceramic material on the other hand will mean a higher resistance value of the resistor. Once the correct ratios are determined, the mixture is compressed to create its shape, and then fired the ceramics furnace. It is common for these types of resistors to have an outer shell of pure ceramic material that serves as an external insulator.
Right ceramic resistors are widely used in many different types of electronic circuits and devices. Although these types of resistors can withstand very high operating temperatures, they also create a significant amount of electric noise. Thanks to this, the ceramic resistor rarely finds use in sensitive radio receivers or other devices particularly susceptible to interference.