Operating and Storage Junction Temperature Range: -55 to +150 °C
Package: TO-220F
Pinout of 2SD1275-Q
Here is an image showing the pin diagram of this transistor.
Classification of hFE
The 2SD1275-Q transistor can have a current gain of 2000 to 5000. The gain of the 2SD1275 will be in the range from 2000 to 10000, for the 2SD1275-P it will be in the range from 4000 to 10000, for the 2SD1275A it will be in the range from 2000 to 10000, for the 2SD1275A-P it will be in the range from 4000 to 10000, for the 2SD1275A-Q it will be in the range from 2000 to 5000.
Marking
Sometimes the "2S" prefix is not marked on the package - the 2SD1275-Q might only be marked "D1275-Q".
Complementary PNP transistor
The complementary PNP transistor to the 2SD1275-Q is the 2SB949-Q.
SMD Version of 2SD1275-Q transistor
The FZT692B (SOT-223) is the SMD version of the 2SD1275-Q transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.
Replacement and Equivalent for 2SD1275-Q transistor