Features Transistors are basic semiconductor devices for power control, which can also be used as contactless switches. There is a label on the packaging so you can easily identify which type of transistor you need. This is a great selection of transistors for electronics professionals or enthusiasts. This set contains a total of 200 transistors in 10 values that meet your basic needs. All transistors are well packaged and sorted in a transparent box for convenient storage. Features: This set contains a total of 200 transistors in 10 values that meet your basic needs. All transistors are well packaged and sorted in a transparent box for convenient storage. There is a label on the packaging that allows you to easily identify which type of transistor you need. Transistors are basic semiconductor devices that control the current and can also be used as non-contact switches. This is a wide range of transistors for electronics professionals or enthusiasts. Specifications: Material: silicone. Package: TO-92. Application: reinforcement Type and quantity: BC327: 20 pieces. BC337: 20 pieces. BC517: pack of 20. BC547: 20 pieces. BC548: 20 pieces. BC549: 20 pieces. BC550: pack of 20. BC556: 20 pieces. BC557: 20 pieces. BC558: pack of 20. Package includes: 1 box x transistors. Note: Transistors are sorted manually, so there may be small errors in type and quantity. Thank you for your understanding. Package List