Features Control current: Transistors are basic solid state devices that control the current, which can also be used as contactless switches. This set contains a total of 200 pieces of transistors in 10 values to meet your basic needs. Convenient storage: all transistors are well packaged and sorted in a transparent box for convenient storage. For electronic professionals: it is a great range of transistors for electronic professionals or enthusiasts. 20 ps BC327/BC337/BC517/BC547/BC548/BC549/BC550/BC556/BC557/BC558 are available Easy Identification: There is a label on the box, so you can easily identify the type of transistor you need. Besides, TO-92 packaging. Note: Transistors are sorted manually, so there may be small errors in type and quantity. Thank you for your understanding. Features: Transistors are basic current control semiconductor devices that can also be used as a non-contact switch. In this set there are a total of 200 transistors in 10 values to meet your basic needs. All transistors are well packaged and sorted in a transparent box for convenient storage. There is a label on the box so you can easily identify the type of transistor you need. It is a great transistors assortment for electronic professionals or enthusiasts. Technical specifications: Material:Silicon Package: TO-92 Use: reinforcement Type and quantity: BC327 20pcs BC337 20 Pieces BC517 20 Pieces BC547 20 Pieces BC548 20 Pieces BC549 20 Pieces BC550 Pack of 20 BC556 20 Pieces BC557 20 Pieces BC558 20 pieces Package Includes: 1 Box x Transistors Note: Transistors are sorted by hand, so there may be minor errors in type and quantity. Thank you for your understanding. Package List