Improtant Terms of SCR

To get more knowledge about SCR ,there are following very improtant terms as belows:

1. Break over voltage : It is minimum forward voltage when gate terminal being open , at which SCR starts to conducts heavily (i.e turned ON).
2. Peak reverse voltage: It is minimum reverse voltage (i.e cathode terminal positive w.r.t anode terminal),that can be applied to the SCR without conducting in the reverse direction.
3. Holding current: It is the maximum anode current (IA) ,when the gate being open , at which SCR is turn off from ON conditions.
4. Forward current rating : It is the maximum anode current that the SCR is capable to pass without destruction of the SCR.
5. Ckt fusing rating: It is the product of square of forward surge current and the time of it.