NE555DR by Texas Instruments is an Analog Waveform Generation IC with 8 terminals, operating voltage of 5V, and power supplies ranging from 5-15V. It is a versatile component for pulse generation applications due to its small outline package and commercial temperature grade suitability.
FDV303N by Onsemi is a N-CHANNEL FET with 25V DS Breakdown Voltage, 0.68A Drain Current, and 0.45 ohm On Resistance. Ideal for SWITCHING applications, it operates in ENHANCEMENT MODE at temperatures ranging from -55 to 150°C. Package style is SMALL OUTLINE with GULL WING terminals for surface mount assembly.
STM32H743IIT6 by STMicroelectronics is a 32-bit microcontroller with integrated cache and a max supply voltage of 3.6V. It is commonly used in industrial applications due to its wide temperature range (-40°C to 85°C) and various connectivity options (CAN, I2C, UART, USB).