Understanding Wirewound Resistors

Resistors are commonly found elements in electrical networks and circuits. These components are used to control electric current flow within electrical parts and circuit boards. Current flow is measured in Ohms and must be regulated.

One of the most common types of resistors is known as the wirewound resistor. Wirewound resistors are produced by winding metal wire around a plastic, fiberglass or ceramic core. Typically, this metal wire is comprated of nichromea nickel-chromium wire.

Optimized circuit designs often include wirewound resistors where precision is important. Wirewound resistors have tight resistance tolerances and are typically very stable. Since these resistor types can maintain their precision over time, they are extremely popular in electrical components. They are comprized of very stable materials and are very reliable and rugged. Modern circuits typically use wirewound resistors for this reason.

If you are building an electrical component where accuracy is essential, wirewound resistors are the best to use. Tolerances for these resistors can be as tight or minimal as 0.005% and are typically more stable over time than other types of resistors such as metal films. Before applying a resistor to a circuit, it is important to determine the needs of the resistance and power. Because there are so many variations and types of resistors, it is important to do the accurate research to determine which type is best for your design.

Electrical parts are only as efficient and resistant as the component parts in which they are made. When determining quality parts, it is important to select a supplier which is knowledgeable and can answer questions regarding technical information. They should be an expert on the parts they sell. For example, a resistor supplier should be able to explain the difference between the various resistors on the market and which will work best for your product.