Information about Resistors and Potentiometers

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About Resistors and Potentiometers

Resistors and potentiometers are passive electronic components that oppose the flow of either alternating current (AC) or direct current (DC). Fixed resistors have a fixed resistance value. Variable resistors have a resistance value that can be adjusted or changed by the user. For both types of resistors and potentiometers, device types include attenuator, chip, and shunt resistors, as well as load banks and voltage dividers. Attenuator resistors reduce the power of a signal by a determined factor without distortion. Chip resistors are passive devices with a form factor of an integrated circuit (IC) chip. Shunts resistors are connected in parallel with an instrument or component to divert electrical current. They provide an alternate path for current in case of failure. Load banks are fixed and variable resistors that provide resistive electrical loads for testing purposes. Similarly, voltage dividers produce highly-accurate reference voltages for both calibration and testing. Potentiometers, trimmers and rheostats are additional device types for variable resistors.

Engineering Calculators Related toResistors and Potentiometers

Ohms' Law Calculator; Voltage Divider Calculator For AC Circuits; Voltage Divider Calculator For AC Circuits With Load; Voltage Divider Calculator For DC Circuits; Voltage Divider Calculator For DC Circuits With Load

Products & Services Related to Resistors and Potentiometers

Chip Resistors

Chip resistors are passive resistors with a form factor of an integrated circuit (IC) chip. Typically, they are manufactured using thin-film technology.

Current Sensing Resistors

Current sensing resistors convert the current flowing through it to a voltage drop. Monitoring or measuring this voltage drop allows the current through the resistor to be measured. Applications for current sensing resistors include power supplies, receptacles, and battery packs.

Potentiometers, Rheostats and Trimmers

Potentiometers, rheostats and trimmers are three-terminal resistors that are used to measure or divide voltages, and to protect or control circuits.

Power Resistors

Power resistors are used in power generation and distribution, high-voltage applications, control systems, and other power system applications. They include load banks, grounding resistors, and dynamic braking resistors.

Resistor, Capacitor Networks

Resistor, capacitor networks (RC networks) are integrated circuits (ICs) that contain resistor-capacitor arrays in a single chip.

Resistors

Resistors are electrical components that oppose the flow of either direct or alternating current. They are used to protect, operate, or control circuits.

Shunt Resistors

Shunts resistors are connected in parallel with an instrument or component to divert electrical current. They provide an alternate path for current in case of failure.

Engineering Web: Resistors and Potentiometers - Machine Design

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