Operating and Storage Junction Temperature Range: -55 to +150 °C
Package: TO-126
Pinout of 2SA900-Q
Here is an image showing the pin diagram of this transistor.
Classification of hFE
The 2SA900-Q transistor can have a current gain of 90 to 155. The gain of the 2SA900 will be in the range from 90 to 470, for the 2SA900-R it will be in the range from 130 to 210, for the 2SA900-S it will be in the range from 180 to 280, for the 2SA900-T it will be in the range from 250 to 360, for the 2SA900-U it will be in the range from 330 to 470.
Marking
Sometimes the "2S" prefix is not marked on the package - the 2SA900-Q might only be marked "A900-Q".
Complementary NPN transistor
The complementary NPN transistor to the 2SA900-Q is the 2SC1568-Q.
SMD Version of 2SA900-Q transistor
The BCX69 (SOT-89) and BCX69-10 (SOT-89) is the SMD version of the 2SA900-Q transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.
Replacement and Equivalent for 2SA900-Q transistor