Tag: electrical components
Understanding metal oxide film resistors
Metal oxide film resistors are one of the most widely used resistors because they are superior in performance to the carbon composition and carbon film resistors. As the name indicated, metal oxide film resistors axially loaded resistors are made from a thin film of metal oxide that has been deposited into a ceramic rod. They…
Understanding Thermistor
The use of thermistors is of many purposes, as they as straightforward device that changes their resistance to temperature. A thermistor is a term derived from the word “Thermal resistor”, it is a thermally sensitive resistor, giving a change in resistance for a temperature change. Thermistors are used in many ways, enabling the temperature of…
Understanding varistor
Being a form of a resistor, varistors are two-terminal semiconductor components that protect the electrical and electronic devices from overvoltage transients. In fact, the word is derived from the term variable and resistor, which is why it is also known as Voltage-dependent resistor VDR. Varistors are nonlinear varying resistance, dependent on the voltage applied. Their…
Understanding SMD Resistors (Surface Mount Resistors)
The SMD resistors used surface mount technology SMT to offer considerable advantages in terms of space-saving and automated manufacture of the printed circuit boards. Surface-mount resistors are used in large quantities, most professionals and industrial electronics now employ this technology. These types of resistors are designed to be surface mounted and they are typically much…
Understanding metal film resistor
Metal film resistors are one of the most widely used types as they are superior to carbon film resistors in performance. They have a thin metal layer as a resistive element on a non-conducting body and are one of the most common types of axial resistors. Carbon film and thick and thin-film resistors are also…
Understanding carbon firm resistor
Over the years, the carbon film resistors have taken over from the carbon composition resistor, due to their portability and ability to provide a much better performance level. These types of resistors can be compared with metal film and metal oxide film, and they are widely used in electronics. This is because they provide better…
Understanding carbon composition resistor
Carbon composition resistors are one of the oldest types that have been around since the 1960s. there are many modern resistors that offer better performance although they are still used in some specialized applications. Also, the carbon composition resistors are of high cost and have low stability. They are known as carbon resistors or carbon…
Understanding resistors
Resistors are great electrical components used to reduce current flow, adjust signal levels, divide voltages, bias active elements, and other uses. It is a passive two-terminal electrical component that implements electrical resistance as a circuit element. High-power resistors are designed to dissipate many watts of electrical power as heat, may be used as part of…
