"A"
"B"
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
Previous set of "S" terms.
| SHUNT. A small plastic female Jumper [picture to right]. A shunt is normally a two terminal component on 0.1 inch centers which is fitted over a dual-row headed with the same dimensions. |
 2-Terminal Shunt |
In some cases a Shunt could be a wire, in other cases a shunt may be a resistor. A resistive device placed in parallel with another component. Appreciable current may flow through it and an appreciable voltage may exist across it. Also see Resistor Shunt [Dictionary of Resistor Terms].
SHUNT-DIODE DETECTOR. A diode detector in which the diode is in parallel with the input voltage and the load impedance. Also known as a current detector because it operates with smaller input levels.
SHUNT-FED OSCILLATOR. An oscillator that receives its dc power for the transistor or tube through a path both separate from and parallel to the tank circuit.
SHUNT PEAKING. A technique used to improve high-frequency response in which a peaking coil is placed in parallel (shunt) with the output signal path.
SHUNT RESISTOR. A resistor in parallel with another component or device. In an ammeter, shunt resistors are used to provide multiple ranges.
SHUNT VOLTAGE REGULATOR. A regulator whose regulating device is in parallel with the load resistance.
SHUNT-WOUND MOTORS AND GENERATORS. Machines in which the armature and field windings are connected in parallel (shunt) with each other.
SIEMENS. The preferred term for MHO.
SIGNAL. A general term used to describe any ac or dc of interest in a circuit; for example, input signal.
SIGNAL DISTORTION. Any unwanted change to the signal.
SIGNIFICANT SIDEBANDS. Those side-bands with significantly large amplitude.
SILENT DATA CORRUPTION. [SDC] Data corruption that occurs in a computing system without any error being logged, no CRC error, or Parity error or any other indication that an error occurred. SDC may occur from any cause.
SILICON. A metallic element which, in its pure state, is used as a semiconductor.
| SILICON-CONTROLLED RECTIFIER. [SCR] A semiconductor device that functions as an electrically controlled switch. A 3-terminal semiconductor device consisting of a Gate, Anode and, Cathode. SCR Vendors. |
 |
Simultaneous Switching. The condition when more than one outputs of an IC are switching at the same time. Also refer to Ground Bounce
SINE WAVE. The curve traced by the projection on a uniform time scale of the end of a rotating arm, or vector. Also known as a sinusoidal wave. The basic synchronous alternating waveform for all complex waveforms.
SINGLE-ENDED MIXER. See Unbalanced Crystal Mixer. Manufacturers of RF Mixers
SINGLE LINE DIAGRAM. A diagram which shows, by means of single lines and graphic symbols, the course of an electric circuit or system of circuits and the component devices or parts used therein.
SINK CURRENT. An integrated circuit sinks current when current is flowing from a load [another device] into the circuits output. This is considered negative current to the IC. FanOut is a related term.
SKEW. The time delay between two related signals. See Timing Skew.
SKIN EFFECT. The tendency for alternating current to concentrate in the surface layer of a conductor. The effect increases with frequency and serves to increase the effective resistance of the conductor.
SKIP DISTANCE. The distance from a transmitter to the point where the sky wave is first returned to earth. Refer to Antenna definitions [in a separate dictionary].
SKIP ZONE. A zone of silence between the point where the ground wave becomes too weak for reception and the sky wave is first returned to earth.
Next set of Technical "S" Terms and definitions
