Features 1、Good Silicon: Mainly made of premium silicon material, the transistor assortment kit ensures great working performance. 2、Reliable Work: The transistor has low power, high stability, low loss, high sensitivity and excellent reliability as well. 3、With 18 Types: There are diode and triode semiconductors of 18 types, each type has 50pcs, meeting your various work needs. 4、Extensive Use: Widely applied to automotive electronics, network electronics, household electronics, lighting and so on. 5、Easy Carrying: Designed to have a light weight and a compact size, the transistor also has a storage box for easy carrying. Specification Item Type: Transistor Material: Silicon Package List 900 x Transistor 1 x Plastic Box