The On Semiconductor KA7809ETU is a 9V fixed output linear voltage regulator. It offers a 1A output current and a 35V maximum input voltage, housed in a TO-220-3 package.
The On Semiconductor KA7805ETU is a positive fixed output linear voltage regulator IC. It provides a stable 5V output with a maximum input voltage of 35V and a maximum output current of 1A.