Page <3>

V1.0

29/10/19

Transistor

NPN, TO-3

Newark.com/multicomp-pro

Farnell.com/multicomp-pro

Element14.com/multicomp-pro

There are two limitations 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 is based 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 limitations will reduce the

power that can be handled to values less than the limitations

imposed by second breakdown.