Features: Transistors are basic-semiconductor device that control current, which can also be used as a non contact switch There are total 200 pieces of transistors in 10 values in this set which will meet you basic-needs There is a labels on box so you can easily identify which type of transistor you need EASY STORAGE: There is a plastic box, which keep your jumpers wire kit organized to store and fetch This is a great assortment of transistors for electronic professionals or enthusiasts Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: Silicon Package: TO-92 Application: AmplificationModel Type Quantity BC327 PNP 20pcs BC337 NPN 20pcs BC517 NPN 20pcs BC547 NPN 20pcs BC548 NPN 20pcs BC549 NPN 20pcs BC550 NPN 20pcs BC556 PNP 20pcs BC557 PNP 20pcs BC558 PNP 20pcs Package List: 1x 10 Values NPN PNPs Transistor Assortment Kit 200pcs