Features: The 2N2222 is a common NPN transistor suitable for low to mediumed power applications; the S9018 is a transistor that complements NPN transistors to achieve complete circuit designs. Each transistor undergoes rigorous testing to ensuring stability and reliability under varying operating conditions. Each transistor bearing clear model markings for quickly user selection. Compared to single-type transistor sets, this set encompasses both primary transistor types (NPN and), offering greater design flexibility. Suitable for diverse applications including low-power amplifiers, switching circuits, and power management. Specifications: Type: 15 Values NPN and Power General Purpose Transistors Component Silicon + Metal Color: Black Dimensions: as shown in the figure Specifications: 2N222-S9018 Quantity：675pcs/Set Package Includes: 1Box 15 Values Power General Purpose Transistors note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.