2N2222A by Texas Instruments is a small signal NPN bipolar junction transistor (BJT) with a max collector-emitter voltage of 40V and a max collector current of 0.8A. It is commonly used for switching applications due to its fast turn on/off times (35ns/285ns) and high transition frequency (300MHz).
FDLL4148 by Onsemi is a single rectifier diode with a max reverse recovery time of 0.004 us. With a max forward voltage of 1V and output current of 0.2A, it is ideal for applications requiring fast switching speeds in electronic circuits. The diode's glass package body material and isolated case connection make it suitable for surface mount designs operating at temperatures up to 175°C.
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.
ERJ3GEY0R00V by Panasonic is a SMT fixed resistor with 0 ohm resistance, suitable for jumper applications. It features a metal glaze/thick film technology, rated for temperatures b/w -55 to 155 °C. With a compact rectangular construction and matte tin over nickel terminal finish, it is ideal for surface mount installations in various electronic devices.