ULN2803A by Texas Instruments is a peripheral driver with 8 functions. It has a max supply voltage of 3V and can operate in temperatures ranging from -40 to 85°C. This IC is commonly used as a buffer or inverter based peripheral driver for various applications.
2N7002,215 by NXP Semiconductors is a small signal N-CHANNEL FET with a min DS breakdown voltage of 60V and max drain current of 0.3A. It is used for switching applications in enhancement mode, operates b/w -65 to 150 °C, and has a max power dissipation of 0.2W.
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Terminal Form: THROUGH-HOLE; Maximum Load Regulation (%): 1.5 %; Operating Temperature (TJ-Min): 0 Cel; Maximum Line Regulation (%/V): .07;
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Terminal Form: THROUGH-HOLE; Minimum Input-Output Voltage Differential: 3 V; Qualification Status: Not Qualified; No. of Functions: 1;
LD1117S33TR by STMicroelectronics is a fixed positive single output LDO regulator with a nominal output voltage of 3.3V and max output current of 1.3A. It has a small outline package style, operates at an adjustable temperature range from 0 to 125°C, and is ideal for applications requiring stable voltage regulation in compact electronic devices.