Electronics TechThe CJ78L09 is a Linear Voltage Regulator manufactured by Changjiang Electronics Tech for use in a wide range of applications. It is available in a TO-92-3 (RoHS) package, which is a three-terminal surface mount package that contains a transistor, a zener diode and an integrated circuit. The CJ78L09 uses a linear voltage regulator with current-limiting, thermal-overload protection and safe area compensation, to supply a regulated output voltage of +9V voltage. It is capable of providing up to 100mA of output current and has an operating temperature range up to +85°C. The device is also designed to be short-circuit proof, and enable pin usage flexibility in many applications, by allowing either the enable or disable pins to be used for control. This device is ideal for providing a regulated voltage output in applications such as power supplies, battery chargers, and other electronics products.