Here is an image showing the pin diagram of this transistor.
Classification of hFE
The HSD1609-C transistor can have a current gain of 100 to 200. The gain of the HSD1609 will be in the range from 60 to 320, for the HSD1609-B it will be in the range from 60 to 120, for the HSD1609-D it will be in the range from 160 to 320.
Complementary PNP transistor
The complementary PNP transistor to the HSD1609-C is the HSB1109-C.
Replacement and Equivalent for HSD1609-C transistor