Operating and Storage Junction Temperature Range: -65 to +150 °C
Package: TO-126
Pinout of BDX46
Here is an image showing the pin diagram of this transistor.
Complementary NPN transistor
The complementary NPN transistor to the BDX46 is the BDX43.
SMD Version of BDX46 transistor
The BSP61 (SOT-223) is the SMD version of the BDX46 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.