480PCS Transistor Assortment Kit - TO-92 NPN PNP BJT Transistors Assorted Box, 24 Values 20pcs Each, for DIY Electronics Repair and Circuit Prototyping

The 480PCS Transistor Assortment Kit is an essential toolkit designed for electronics enthusiasts, engineering students, repair technicians, and professional prototypers. Featuring a meticulously selected range of 24 distinct transistor types packaged in quantities of 20 per value, this comprehensive set ensures you always have the right semiconductor component on hand for your circuit designs, repairs, and experiments. Whether you are building audio amplifiers, designing logic interfaces, or troubleshooting consumer electronics, this kit provides exceptional versatility and convenience in a single compact storage case.

Transistors are fundamental semiconductor devices used to amplify or switch electrical signals and power. This assortment comprises bipolar junction transistors in both NPN and PNP polarizations, housed in industry-standard TO-92 packages. Each component is manufactured to deliver predictable DC current gain, low saturation voltage, and dependable breakdown voltage thresholds suitable for low to medium power electronic applications. The inclusion of complementary pairs enables efficient push-pull amplifier design and straightforward digital switching logic implementation.

Total Quantity: 480 pieces across 24 distinct values

Values Included: BC327, BC337, BC517, BC546, BC547, BC548, BC549, BC550, BC556, BC557, BC558, BD139, BD140, 2N2222, 2N3904, 2N3906, 2N5401, 2N5551, A1015, C1815, S8050, S8550, TIP41, TIP42 (or equivalent standard industry values depending on batch revision)

Package Type: TO-92 through-hole and select power packages

Polarity Type: NPN and PNP BJT

Storage Case: Compartmentalized transparent plastic container with value labels

This transistor kit is ideally suited for a broad range of electronics projects including audio preamplifiers, signal switching circuits, relay and LED drivers, microcontroller output buffering, educational physics and engineering lab experiments, and general circuit board repairs. It provides a reliable stock of replacement parts for fixing vintage radios, power supplies, and custom DIY microcontroller shields.

Always consult the specific manufacturer datasheet for pinout configurations, maximum collector current, and voltage ratings prior to circuit integration, as pin assignments (Emitter, Base, Collector) can vary between transistor families. Ensure proper current-limiting resistors are used on base terminals when driving transistors from microcontroller GPIO pins to prevent thermal overload and component damage. Verify collector-emitter breakdown limits to ensure safe operation within your specific power envelope.

480 x Assorted TO-92 and power transistors, 480 x Organized plastic storage box