50PCS mixed transistor kit in SOT89 SMD packaging, including PNP and NPN models: 2SA1013, 2SB1132, 2SB1188, 2SB772, 2SC2383, 2SC2655, 2SC3357, 2SC4672, 2SD1664, 2SD882, 2SD965A. Key benefits Broad compatibility for general purpose signal amplification and switching across various electronic circuits. Space efficient SOT89 SMD packaging, suitable for compact PCB layouts and surface mount assembly. Readytouse assortment of commonly used transistor models, enabling quick replacements and prototyping. Includes both PNP (2SA/2SB) and NPN (2SC/2SD) types for flexible circuit design and . 50 pieces provide ample stock for multiple projects, repairs, or batch prototyping. Key attributes Package: SOT89 SMD packaging. Transistor types included: PNP models 2SA1013, 2SB1132, 2SB1188, 2SB772; NPN models 2SC2383, 2SC2655, 2SC3357, 2SC4672, 2SD1664, 2SD882, 2SD965A. Quantity: 50 pieces. Applications: suitable for general purpose amplification, switching, and other low to medium power transistor tasks in electronics projects. Compatibility: appropriate for consumer electronics , board redesigns, and DIY prototyping requiring SOT89 packaged transistors. Brand alignment: reflects the specified models and packaging as listed in the product title. Use cases Replacing worn or damaged transistors in audio amplifiers, radios, power regulators, or small signal circuits where SOT89 parts are appropriate. Prototyping and DIY projects that require a mix of PNP and NPN transistors in surface mount form factors. Electronics or refurbishment projects involving SOT89 transistors on existing PCBs, enabling convenient stocking of common model replacements.