Glossary Terms and Definitions S

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Scales

Definition: Calibrated areas for different units on the face of a multimeter.

Schematic

Definition: A drawing that contains symbols for each component and which represents an electrical circuit.

Semiconductor

Definition: A material that is midway between a conductor and an insulator which is used to make transistors. Example - Silicon.

Series

Definition: A circuit with two or more resistors and that has only one current path.

Short Circuit

Definition: Zero resistance between two points.

Signal Voltage

Definition: Small high frequency AC voltages in an electrical circuit.

Sine Wave

Definition: A waveform whose instantaneous value is the sine of its angle.

Sine

Definition: A trigonometric function of an angle.

Solid State

Definition: Another name for semiconductor devices.

Source

Definition: A device or devices that provide energy.

Source Measure Unit (SMU)

Definition: Specialized test instrument capable of sourcing current and simultaneously measuring voltage. It can also do the opposite of sourcing current and simultaneously measuring voltage with high speed and accuracy.

Switch

Definition: An electrical device used to open and close circuits.

Surface Mount

Definition: Components without leads that are mounted directly to the PC board.


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