ULN2803ADWR 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, has a max supply voltage of 3V, and is ideal for buffer or inverter-based applications requiring sink current flow direction.
MBR0520L-T1 by Won-top Electronics is a Schottky rectifier diode with 20V peak reverse voltage and 0.5A output current. It is a single-config, surface-mount diode in a small outline package, suitable for applications requiring high-speed switching and low forward voltage drop. Operating temperature range from -65°C to 125°C makes it ideal for various electronic circuits.
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 250 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .6 A;