Features:100% brand new and high quality.Transistors are basic semiconductor device that control current, which can also be usedas a non-contact switch.There are total 840 pieces of transistors in this set which will meet you basic needs.All transistors are well packed and assorted in a plastic box for convenient storage.This is a great assortment of transistors for electronic professionals or enthusiasts.Specification:Material: Silicon Application: AmplificationPackage: TO-92Type & Quantity:2N2222 NPN 35PCS2N3904 NPN 35PCS2N3906 PNP 35PCS2N5401 PNP 35PCS2N5551 NPN 35PCSA1015 PNP 35PCSC1815 NPN 35PCSC945 NPN 35PCSS8050 NPN 35PCSS8550 PNP 35PCSS9012 PNP 35PCSS9013 PNP 35PCSS9014 NPN 35PCSS9015 PNP 35PCSBC327 PNP 35PCSBC337 NPN 35PCSBC517 NPN 35PCSBC547 NPN 35PCSBC548 NPN 35PCSBC549 NPN 35PCSBC550 NPN 35PCSBC556 PNP 35PCSBC557 PNP 35PCSBC558 PNP 35PCSWeight: 267g / 9.4oz (approx.)Package list:1 box * Transistors