High Power Bipolar Transistors
Tip Series
Page <4> 16/06/12 V1.1
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Figure - 6 Active Region Safe Operating Area
V CE, Collector Emitter Voltage (V)
IC, Collector Current (A)
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 the
curves indicate
The data of figure - 6 curve is based on TJ (PK) = 150°C; TCis
variable depending on power level. Second breakdown pulse
limits are valid for duty cycles to 10% provided TJ (PK) =150°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
Specification Table
Type Part Number
NPN
TIP29A
TIP29C
PNP
TIP30A
TIP30C
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