The 1N4723 is a standard rectifier diode from Microchip Technology. It features a 3A average rectified current, 1V forward voltage, and through-hole axial package.
The 1N4722 is a standard recovery rectifier diode from Microchip Technology, rated for 3A average rectified current with a forward voltage of 1V at 3A. It comes in an axial through-hole package.