A fixed resistor reduces electricity flow and is measured in Ohms. Resistor size ranges from pin to book size. There are two types of fixed resistors: carbon and metal film. When selecting a resistor, consider its value, tolerance, and wattage. Metal film resistors have higher accuracy but cost more. Consider the intended use of the […]
A bleeder resistor is used in unregulated DC power supplies to improve voltage regulation, but is not needed in low voltage regulated power supplies or linear voltage regulators. It is used in circuits with a flyback transformer to maintain a constant high voltage. A full-wave bridge rectifier is more efficient than a single diode half-wave […]
A thin film resistor is an electronic component that impedes the flow of electricity, made by vacuum deposition methods. It has a thin layer of resistive material and can be trimmed for accuracy. They are used in demanding applications such as high frequency communications and computing. A thin film resistor is a resistor, a common […]
A resistor restricts current flow; a variable resistor allows for finer control. Rheostats handle entire circuit currents, while potentiometers function as voltage dividers for precise control. In an electrical circuit, a resistor acts as a fixed restriction on the flow of current without completely turning the current on or off. A variable resistor allows for […]
A resistor resists the flow of electric current and drops the voltage. Resistance is measured in ohms and can be written in different ways. Resistors are made of different materials and are coated for protection. They are identified by a color coding system. Resistors can be fixed or variable, with potentiometers commonly used as volume […]
A force sensing resistor changes its resistance as pressure is applied, allowing for touch and weight sensing. It has applications in monitoring, automation, and robotics. It works similarly to the first resistive speed control units but is designed to handle less electrical energy. The resistor uses a polymer with conductive materials to decrease resistance as […]
Chip resistors are compact electronic components with known resistance for electric currents. They have the same physical characteristics as other surface mount devices and are available in various package formats. They are constructed using thin film or sputtering techniques and comply with international safety standards. Chip resistors come in single resistor or resistor array formats […]
Power resistors control current flow in circuits, dissipate voltage, reduce electrical noise, and protect delicate elements. They come in various materials and sizes and can be adjusted to provide different levels of resistance. Choosing the wrong resistor can damage the circuit and device. Found in virtually any electrical device that contains a controlled circuit, a […]
