Description:Transistoris abasic semiconductor device that control current, which can also be usedas a non-contact switch. It is very important in electronic circuit.Features:Made from silicon material, a semiconductor device that control current.It is one of the basic components of semiconductor.Can amplify current, is the core part of electronic circuit, also be used as a non-contact switch.Well packed and assorted in a compact storage case.Total 600pcs transistors in 15 types can meet you basic daily needs.Specifications:Material: SiliconType: 15 typesQuantity: 600pcsWeight: 154g(approx.)Content:ItemsTypeCurrent(mA)Quantity2N2222NPN40600402N3904NPN40200402N3906PNP40200402N5401PNP150600402N5551NPN16060040A1015PNP5015040C1815NPN5015040C945NPN5015040S8050NPN4050040S8550PNP4050040S9012PNP4050040S9013PNP4050040S9014NPN5010040S9015PNP50100040S9018NPN305040Package Includes:1 Box(600pcs) x Transistors.