The ESP-01 Breakout Adapter for ESP8266 serial to Wi-Fi transceiver module. Since the ESP-01 pinout is not breadboard friendly and unlabeled, this makes it inconvenient for rapid prototyping.
The 2SC5241, 2SC-5241, C5241 5241 is a 600V 5A 30W NPN Bipolar Power Transistor, TO-220F Package High Voltage Transistor, Manufactured By NEC Semiconductor
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.