The TIP42C is a base island technology PNP power transistor in TO-220 plastic package that make this device suitable for audio, power linear and switching applications. The complementary NPN type is TIP41C.
The LM2596HVS is a High-voltage input version of the LM2596S low-cost high-amperage switch mode DC/DC Buck power supply module. The module can accept up to 60V input voltage. Get any voltage between 4.5V to 35V.
These epitaxial planar transistors are mounted in the TO-126 plastic package. The NPN types are the BD135 and BD139, and the complementary PNP types are the BD136 and BD140.
The 2SC1383, C1383, 1383 is a 30V 1.5A Silicon NPN epitaxial planar type For low-frequency power amplification and driver amplification Complementary to 2SA0683.