What is breakdown voltage?

Answer 1

if a diodes reverse current get too much it breaks down.break down voltage is the voltage point which it happens.and it depends on the structure of the diode

Answer 2

The most frequent use of the term Breakdown voltage is in reference to semiconductor devices. If the device has a voltage applied to it in excess of the breakdown voltage, without any current limiting, then the device will be destroyed. This frequently happens in Cathode Ray Tube type television sets where the line output transistor, which will usually have a Collector Emitter Bv of 800 volts, is subjected to a surge in voltage, exceeding the Bvce of the device and destroying the device.
The Bv applies to any semiconductor, but also applies to spark gaps, insulators. Capacitors generally have a recommended operating voltage rather than a breakdown voltage.

Answer 3

Breakdown voltage is the voltage applied to a device such that it experiences either dielectric breakdown and/or reverse bias breakdown.

Thin gate oxides on semiconductor transistors are measured for oxide integrity by observing the breakdown of very small polysilicon over gate oxide capacitors.

Zener diodes are made to breakdown and avalanche at certain reverse bias voltages and these are used to control voltage on power supplies.

In an automobile with a distributor and sparkplug wires, if you get carbon scoring and cracks, these can lead to dielectric breakdown and the result is a missing cylinder or spark popping off of the wires and/or distributor cap.

Answer 4

Breakdown voltage usually refers to insulation and is the voltage at which an insulator "breaks down" and begins to pass current. You can also have a breakdown voltage for an air spark gap. This is the voltage at which a spark will pass between the gaps.

Answer 5

breakdown voltage is the voltage at which bonds of atoms breakdown at that point and steady current will flow in reverse direction means breakdown voltage works in reverse region
it is denoted by vb

Answer 6

At a diode junction, brekdown voltage is that voltage at which current will begin to flow "backward" through the junction.

I would prefer to give a more technical definition, but school was so long ago.

Answer 7

The selection imprinted on the cap is the utmost voltage you could placed on the capacitor for long term reliability. the truthfully breakdown voltage is somewhat greater, yet how plenty above is unknown. it must be 50 volts, it relatively is a million volt. So not at all function a cap above the score. .

Answer 8

The voltage at which a diode will conduct against it's normal resistance path, resistance vanishes.

Answer 9

break down is the insulation of air which would be 14,000 volts per liner inch to make a spark go that far.