The AUIRF9Z34N is a P-Channel MOSFET transistor designed for automotive applications. It has a drain to source voltage rating of 55V and a continuous drain current rating of 19A. The transistor features a low on-resistance of 100mOhm at 10A and 10V. It is mounted using through-hole technology and comes in a TO-220-3 package. The AUIRF9Z34N is part of the HEXFET series from Infineon Technologies, known for its high performance and reliability. With a gate charge of 35nC at 10V, it provides efficient switching characteristics. The transistor operates in a wide temperature range from -55°C to 175°C, making it suitable for harsh automotive environments. It is an active product and widely used in automotive electronic systems.