Under high-level injection condition in forward active mode,  will decrease with increase in the magnitude of collector current.

Under low-level injection condition in forward active mode, where the current at the emitter-base junction is dominated by recombination-generation process,  will decrease with increase in the magnitude of collector current.

 will be lower when the BJT is in saturation region compared to when it is in active region.

A higher value of  will lead to a lower value of the collector-to-emitter breakdown voltage.