SEZ52C3V9 with SOD-523 is a Zener diode manufactured by SINO-IC and is compliant with the ROHS standards. It is an electronic part designed for use in various electrical and electronic circuits as a voltage regulator. It is a small surface mount device (SOD) with a maximum lead spacing of 0.5mm. The SEZ52C3V9 has a breakdown voltage of 3.9V and is capable of regulating current up to 500mA. It also features a maximum power dissipation of 350mW, an operating temperature range of -55°C to +200°C and a reverse leakage current of 1.0µA under 6.1V. The SEZ52C3V9 is designed to provide stable voltage regulation under various environmental conditions and is widely used in a wide variety of electrical and electronic applications.