Information about Resistors

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About Resistors

Resistors are electrical components that oppose the flow of either direct or alternating current. They are used to protect, operate, or control circuits. Voltages can be divided with the use of resistors. In combination with other components, resistors can also be used to make electrical waves into shapes most suited to the designer’s requirements. Resistors can have a fixed value of resistance, or they may be variable or adjustable within a certain range. Typically, resistor values are expressed in ohms, a unit of resistance. Materials of construction for resistors include carbon composition, carbon film, ceramic composition, metal alloy, metal film, metal oxide, thick film, thin film, and wire. Common lead types include axial leads, gull-wing leads, J-leads, radial leads, screw terminals, and tab terminals. Resistors without leads are also available.

Engineering Calculators Related toResistors

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

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.

Digital Potentiometers

Digital potentiometers are three-terminal resistors with an adjustable center connection. To set the output resistance, a digital signal is sent through an electrical interface.

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 and Potentiometers

Resistors and potentiometers are passive electronic components that oppose the flow of either alternating current (AC) or direct current (DC).

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 - Machine Design

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Delayed-contact \| Machine Design contacts make initial connections to the PFC capacitor bank through current-limiting resistors, precharging the capacitors to limit inrush current.
Surface-Mount Resistors \| Machine Design Surface-Mount Resistors May 11, 2006 Staff
Power resistors handle 12 w \| Machine Design Power resistors handle 12 w December 8, 2005 Surface-mount power resistors handle up to 12 W at 85°C.

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