Operating and Storage Junction Temperature Range: -55 to +150 °C
Package: TO-251
Pinout of 2SD1220-R
Here is an image showing the pin diagram of this transistor.
Classification of hFE
The 2SD1220-R transistor can have a current gain of 60 to 120. The gain of the 2SD1220 will be in the range from 60 to 320, for the 2SD1220-O it will be in the range from 100 to 200, for the 2SD1220-Y it will be in the range from 160 to 320.
Marking
Sometimes the "2S" prefix is not marked on the package - the 2SD1220-R might only be marked "D1220-R".
Complementary PNP transistor
The complementary PNP transistor to the 2SD1220-R is the 2SB905-R.
SMD Version of 2SD1220-R transistor
The FMMT625 (SOT-23) is the SMD version of the 2SD1220-R transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.
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