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Through Hole Resistors

Resistors are two-terminal electronic components used to limit or adjust the flow of electrical current. They generally consist of a ceramic or metal housing that provides physical strength and acts as an insulator against heat, moisture, and dust. Depending on the application, resistors may have an inert, non-conductive, or passive construction, or an active construction which may include an amplifier or voltage regulator. One of the most common type of resistors is the through hole resistor, which is also known as a “disc-type” resistor.

PWR221T-30-47R0J Application Field and Working Principle

The PWR221T-30-47R0J is a through-hole, precision power resistor. It has an operating temperature range of -55ºC to +125ºC and offers high immunity to vibration and shock. Featuring a rugged package, excellent performance, and very high reliability, this through-hole resistor is well-suited for a variety of industrial and laboratory applications.

The 2W resistor is designed for temperature compensation, voltage-divider networks, current sensing, and voltage-dropping applications. It features a non-inductive construction and is available in 1%, 2%, or 5% tolerances. It also features a sub-miniature case which provides a more compact solution for tight spaces.

The working principle of the PWR221T-30-47R0J is based on Ohm’s Law, which states that the current through a conductor between two points is directly proportional to the voltage across the two points. The resistor works by offering opposition to the flow of current, providing voltage drop or temperature compensation. The resistance created by the resistor will depend on the size and design of the resistor as well as the materials used in its construction.

The PWR221T-30-47R0J is a versatile component designed to support a variety of industrial and laboratory applications. Its elegant design and high-performance make it an ideal choice for areas where a limited space and sensitive environment are key considerations. It can be used for temperature compensation, voltage-divider networks, current sensing, and voltage-dropping applications, and provides high precision and performance.

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