Ceramic resistors are the most used components in electrical circuits and their main objective is to limit the current and distribute the voltage throughout the system.
Due to their characteristics, they are usually used in places where high power dissipation is required. It should be noted that they can also be used as a heating element.
At Nugar Resistor Technology we manufacture ceramic resistors for industrial uses using the highest quality materials and the latest technology to create efficient devices that are perfectly adapted to the times.
So that you have no doubts at the time of purchase, here we will tell you what aspects you must take into account to find the component you need:
One of the most important things you should know is that the values of ceramic electrical resistances are fixed. The power is another of the fundamental aspects to review of these components. Generally, it is not indicated, but you can know it approximately by the size of the product.
The tolerance is the percentage with respect to the factory nominal value over which the value of a real resistance can oscillate (up or down). This occurs because, at the time of manufacture of ceramic resistors, the material and dimensions vary.
You must also take into account the temperature coefficient, which is the increase or decrease in electrical resistance according to the variation in temperature. When heated, it can raise or lower the value of its resistance, which gives rise to positive or negative coefficients (measured in 1/°C or in degrees Kelvin).
Ceramic is a very common internal component in many industrial resistors because it works very well on circuits that require high power to work perfectly.
Broadly speaking, we can define two different types of ceramic resistors: carbon film and metal film.
This type of ceramic electrical resistance consists of a ceramic tube as a substrate on which a carbon film is deposited and covered with an insulating lacquer.
These components stand out for having a good tolerance, in most cases 5%, a low inductance and a very quiet operation.
In addition, they usually offer a low power range, being able to reach up to 2 watts of dissipated power.
These components are made from a thin layer of metal that is rolled onto an insulating backing and two caps are pressed onto the ends.
Metal film resistors are currently the most manufactured because they are cheap and also offer interesting benefits.
The ability to generate a stable electrical connection for a long time, the possibility of reaching 175°C and the low noise it produces are some of the advantages of this type of device.
Taking into account the values, the temperature coefficient, the resistance and the power, you will not have any problem finding the device you need.
If you have questions about any aspect of our industrial ceramic resistors or want to know more, you can contact us right here, quickly and easily. We will be happy to help you.