Features: This TO 92 transistors kit contains 200+ semiconductor devices with diverse models, offering comprehensive solution for circuit and electronic component replacement needs. Organized in a labeled storage case with heat dissipating materials, this transistors assortment ensures easy access, durability, and stable performances under prolonged operation. Ideal for electronics engineers, DIY enthusiasts, and students working on prototyping, educational projects, or device repairs requiring multiple transistors specifications. Perfect for workshops, laboratories, and electronics training environment where quick component selection and current control for circuit testing. for integration into sensitive circuits and precisions instrument, this TO 92 transistors collection stable current transmission across various electronic applications. Specifications: Material: Semiconductor Quanlity: 200pieces/box, 600pieces/box, 840pieces/box(optional) Package Includes: 200/600/840Pcs transistors Assortment Kit note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.