STM32F401CDY6TR by STMicroelectronics is a 32-bit microcontroller with 393216 ROM words, 50 MHz clock frequency, and 36 I/O lines. It is used in applications requiring high-speed processing, such as industrial automation and consumer electronics.
ULN2803ADW by Texas Instruments is a peripheral driver with 8 functions, open-collector output characteristics, and built-in transient protections. It operates b/w -40 to 85 °C and has a max supply voltage of 3 V. Ideal for applications requiring buffer or inverter-based peripheral drivers with sink current flow direction.
MBRS140T3G by Onsemi is a Schottky rectifier diode with a max forward voltage of 0.6V and max output current of 1A. It operates b/w -65°C to 125°C, making it suitable for various applications requiring high-speed switching and low power loss in a small outline package style. The diode's matte tin terminal finish and dual position terminals enhance its performance in surface mount configurations.