Operating and Storage Junction Temperature Range: -55 to +150 °C
Package: TO-92
Pinout of M8550
The M8550 is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, base, and collector leads. Here is an image showing the pin diagram of this transistor.
Classification of hFE
The M8550 transistor can have a current gain of 80 to 300. The gain of the M8550-B will be in the range from 80 to 160, for the M8550-C it will be in the range from 120 to 200, for the M8550-D it will be in the range from 160 to 300.
Complementary NPN transistor
The complementary NPN transistor to the M8550 is the M8050.
SMD Version of M8550 transistor
The MMBT3702 (SOT-23) is the SMD version of the M8550 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.