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V1.0

16/09/19

Transistor

NPN, TO-3

Newark.com/multicomp-pro

Farnell.com/multicomp-pro

Element14.com/multicomp-pro

There are two limitation on the power handling ability of a transistor: average junction temperature and second breakdown safe

operating area curves indicate Ic-Vce limits of the transistor that must be observed for reliable operation i.e., the transistor must

not be subjected to greater dissipation than curves indicate. The data of SOA curve is base on Tj(pk) = 200°C; TC is variable

depending on conditions. Second breakdown pulse limits are valid for duty cycles to 10% provided Tj(pk) = 200°C, At high

case temperatures, thermal limitation will reduce the power that can be handled to values less than the limitations imposed by

second breakdown.