100PCS/Lot PNP NPN Transistors Kit TL431A 2N2222 2N3904 2N5551 BC337 BC547 BC548 BC557 S8050 TO-92 package radio transistor

100PCS/Lot PNP NPN Transistors Kit TL431A 2N2222 2N3904 2N5551 BC337 BC547 BC548 BC557 S8050 TO-92 package radio transistor