I need to understand what's exactly the meaning of the following points (please see attached file): Itrms, Itavm,Vrrm
What is the maximum of current, voltage for this thyristor?
IT(RMS)
ON−STATE RMS CURRENT
The maximum value of on−state rms current that can be
applied to the device through the two main terminals of a
Triac (or cathode and anode if an SCR) on a continuous
basis.
IT(AV)
AVERAGE ON−STATE CURRENT (SCR)
The maximum average on−state current the device may
safely conduct under stated conditions without incurring
damage.
VRRM
PEAK REPETITIVE REVERSE OFF−STATE
VOLTAGE
The maximum allowed value of repetitive reverse voltage
which may be applied and not switch the SCR or Triac on
or do damage to the thyristor.