ABSTRACT
The power of tens of watts (which is the power of an electric solder!) dissipated in a small transistor body necessitates the use of radiators.
Hence, transistor in a reed-transistor switch can sustain the maximal allowed voltage in the cut-off regime and conduct maximal allowed current flow in a saturation regime (in an open state). Taking into account that in the reed-transistor switch the transistor can operate only in one of the above regimes, it may be thought of as providing commutation of power which is the product of maximal allowed voltage and maximal allowed current; moreover, taking into account the current and voltage safety factors used in practice (1,5...2 for every parameter), power commutation of a reed-transistor switch equal to Ps 0.35 UCEIC might be considered.
