Dictionary of Electrical and Electronic Terms
"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"

"S" to "Sec", "Sel" to "Series pa",
"Series pe" to "Shr", "Shu" to "Skip", "Sky" to "Spe",
"Spi" to "Sta", "Ste" to "Stz", "Su", "Sw", "Sx" to "Sz"

Swamping Resistor. A resistor used to limit current. Detailed definition of Swamping Resistor.

Switch. A device used to connect, disconnect, or change the connections in an electrical circuit. A device used to open or close a circuit. [Switch Manufacturers]. A mechanical Toggle switch is shown as an example. A switch may also be implemented within a semiconductor, as in an Analog Switch.

Mechanical Toggle Switch

Switch Assembly. One or more switches that are permanently fixed to a bracket having a common actuating means, that is, lever, rocker, button, or plunger styles.

Switch Bounce. The mechanical chatter or oscillation of the switch contacts as they attempt to move from the open and closed position [or closed to open]. There is no way to stop a switch from bouncing, it's due to the design of the switch. However a Switch Debouncer circuit may be designed so that the bounce [on-off oscillations] are not seen by the connecting circuit ~ see Switch Debounce.

Switch Debounce. How to design a circuit to ignore or mask the effects of switch bounce. Refer to the Switch Debounce Definition.

Switch life. The number of cycles of operation during which the electrical and mechanical performance of the switch will meet the predetermined and stated life-limiting criteria.

Switch rating. The load-carrying and breaking ability of a switch. In most cases the current rating is for a resistive load being switched at ambient temperatures.

Switching Power Supply. A power supply that uses some type switching regulator circuit to develop an output voltage. As opposed to an analog power supply that only develops output voltages based passive components.

Switching Regulator. A regulator that converts the incoming DC to a switched voltage applied to a transistor or FET with a feed-back path to keep the output voltage constant. Read more on Switching Regulators.

Switching Time. The interval of time between when the input of a device switches states and the output of that device switches state [referenced at defined levels]. The switching time may be different for a change from high to low [T-on] or low to high [T-off], and the device may provide an inversion so the output switches from high to low when the input switches from low to high. IC switching time is called propagation delay, in reference to the time it take for the input change to propagate to the output of the device.

SWR Meter. A device that measures the Standing Wave Ratio on a line. Refer to the Equipment icon below for Test Equipment Manufacturers.

PC motherboard

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