The J112-D74Z is a N-Channel Junction Field Effect Transistor (JFET) manufactured by ON Semiconductor. It is a low-power device with a maximum drain-source voltage of 35V and a maximum drain current of 625mW. It is housed in a TO-92 package, which is a small, three-pin plastic package that is commonly used for low-power transistors.

Features of the J112-D74Z include low noise, low input capacitance, and low input bias current. It also has a high input impedance and a low gate-source leakage current. The device is suitable for use in a variety of applications, including audio amplifiers, signal switching, and voltage regulation. It can also be used in low-power analog circuits, such as preamplifiers and signal conditioning circuits.