840pcs NPN PNP to 92 2N2222A-BC558 Transistor Assortment DIY Kit Features: . Transistors are basic semiconductor device that control current, which can also be used as 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: Amplification Package: TO-92 Type & Quantity: 2N2222  NPN  35PCS 2N3904  NPN  35PCS 2N3906  PNP  35PCS 2N5401  PNP  35PCS 2N5551  NPN  35PCS A1015   PNP  35PCS C1815   NPN  35PCS C945    NPN  35PCS S8050   NPN  35PCS S8550   PNP  35PCS S9012   PNP  35PCS S9013   PNP  35PCS S9014   NPN  35PCS S9015   PNP  35PCS BC327   PNP  35PCS BC337   NPN  35PCS BC517   NPN  35PCS BC547   NPN  35PCS BC548   NPN  35PCS BC549   NPN  35PCS BC550   NPN  35PCS BC556   PNP  35PCS BC557   PNP  35PCS BC558   PNP  35PCS Weight: 267g / 9.4oz (approx.) Package list: 1 box * Transistors