Operating and Storage Junction Temperature Range: -55 to +150 °C
Package: TO-126
Pinout of 2SD1722-R
Here is an image showing the pin diagram of this transistor.
Classification of hFE
The 2SD1722-R transistor can have a current gain of 100 to 200. The gain of the 2SD1722 will be in the range from 70 to 400, for the 2SD1722-Q it will be in the range from 70 to 140, for the 2SD1722-S it will be in the range from 140 to 280, for the 2SD1722-R it will be in the range from 200 to 400.
Marking
Sometimes the "2S" prefix is not marked on the package - the 2SD1722-R might only be marked "D1722-R".
Complementary PNP transistor
The complementary PNP transistor to the 2SD1722-R is the 2SB1165-R.
SMD Version of 2SD1722-R transistor
The 2SD1624 (SOT-89), 2SD1624-R (SOT-89) and BDP949 (SOT-223) is the SMD version of the 2SD1722-R transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.
Replacement and Equivalent for 2SD1722-R transistor