Features: _x000D_ Transistors are basic semiconductor device that control current, which can also be used as a non-contact switch. _x000D_ There are total 200 pieces of transistors in 10 values in this set which will meet you basic needs. _x000D_ All transistors are well packed and assorted in a transparent box for convenient storage. _x000D_ There is a label on box so you can easily identify which type of transistor you need. _x000D_ This is a great assortment of transistors for electronic professionals or enthusiasts._x000D_ _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Material: Silicon _x000D_ Package: TO-92 _x000D_ Application: Amplification _x000D_ Type and Qty: _x000D_ BC327 _x000D_ 20pcs BC337 _x000D_ 20pcs BC517 _x000D_ 20pcs BC547 _x000D_ 20pcs BC548 _x000D_ 20pcs _x000D_ BC549 _x000D_ 20pcs BC550 _x000D_ 20pcs BC556 _x000D_ 20pcs BC557 _x000D_ 20pcs BC558 _x000D_ 20pcs _x000D_ _x000D_ _x000D_ Package Includes: _x000D_ 1 Box x Transistors _x000D_ _x000D_ _x000D_ Note: Transistors are sorted manually, so there might be small mistakes on type and quantity. Thanks for your understanding.