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.
ULN2803ADWG4 by Texas Instruments is a peripheral driver with 8 functions, open-collector output characteristics, and built-in transient protections. It operates at temperatures ranging from -40 to 85°C and has a max supply voltage of 3V. Ideal for applications requiring sink current flow direction in a small outline package style.
SBAV99LT1G by Onsemi is a rectifier diode with a max repetitive peak reverse voltage of 100V. It has a small outline package style and a fast max reverse recovery time of 0.006 us. It is commonly used in applications requiring low power dissipation and high operating temperatures.
MBR130T1G by Onsemi is a Schottky rectifier diode with max output current of 1A and max repetitive peak reverse voltage of 30V. It operates b/w -65 to 125°C, suitable for surface mount applications in electronics requiring low forward voltage drop.