Operating and Storage Junction Temperature Range: -55 to +150 °C
Package: TO-126
Pinout of 2SD439-F
Here is an image showing the pin diagram of this transistor.
Classification of hFE
The 2SD439-F transistor can have a current gain of 160 to 320. The gain of the 2SD439 will be in the range from 60 to 320, for the 2SD439-D it will be in the range from 60 to 120, for the 2SD439-E it will be in the range from 100 to 200.
Marking
Sometimes the "2S" prefix is not marked on the package - the 2SD439-F might only be marked "D439-F".
Complementary PNP transistor
The complementary PNP transistor to the 2SD439-F is the 2SB559-F.
SMD Version of 2SD439-F transistor
The 2SC3440 (SOT-23), 2SC3440-E (SOT-23), BCX68 (SOT-89) and BCX68-25 (SOT-89) is the SMD version of the 2SD439-F transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.
Replacement and Equivalent for 2SD439-F transistor