Electronic Spices Transistors Combo A1015 BC557 BC554 2N2222 2N3904 2N3906 NPN PNP, 5 Pieces Each, 30 Pieces Electronic Components Electronic Hobby Kit

it is a pack of A1015 BC557 BC554 2N2222 2N3904 2N3906 NPN PNP Transistors For High-speed Switching Features: 1.The transistors are silicone planar epitaxial NPN and PNP type transistors. 2.The transistors are specially designed for high-speed switching applications and feature useful current gain over a wide range of collector current low leakage currents and low saturation voltages.