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Spike:
An abrupt transient which comprises part of a pulse, but exceeds its average amplitude considerably.
Surge:
A large, sudden change of voltage or current, usually caused by the collapse of a magnetic field or by a
shortened or opened circuit element.
Surge Protector:
A device which protects component circuitry from high alternating voltage peaks or transients.
Transient:
A momentary surge on a signal or power line which may cause component breakdown or failure.
UL:
A common abbreviation for Underwriters’ Laboratories, Inc., a corporation supported by some underwriters for
the purpose of establishing safety standards on types of equipment or components.
Video Noise:
In the video-frequency range, any electrical disturbance introduced from a source extraneous to the signal.
Volt (V):
The unit of measurement of electromotive force.
Voltage Rating:
The maximum voltage which an electrical device or component can sustain without breaking down.
