Description: _x000D_ Transistor is a basic semiconductor device that control current, which can also be used as a non-contact switch. It is very important in electronic circuit. _x000D_ _x000D_ _x000D_ Features: _x000D_ Made from silicon material._x000D_ _x000D_ It is a semiconductor device that control current._x000D_ _x000D_ One of the basic components of semiconductor. _x000D_ Can amplify current, is the core part of electronic circuit. _x000D_ Also be used as a non-contact switch. _x000D_ _x000D_ _x000D_ Specifications:_x000D_ Material: Silicon _x000D_ Type: 18 types _x000D_ Quantity: 900pcs _x000D_ Package Size: 20.8 x 10.5 x 2.9cm / 8.18 x 4.13 x 1.14" _x000D_ Weight: 237g(approx.) _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Package Includes:_x000D_ 1 Box(900pcs) x Transistors