The SZMM3Z5V6ST1G is a Zener voltage regulator designed to provide stable voltage regulation in a compact SOD-323 surface-mount package. It features a nominal Zener voltage between 5.49 V and 5.73 V at a test current of 5.0 mA, with a maximum Zener impedance of 40 Ω. This device has a steady-state power rating of 300 mW, a low reverse leakage current of 1.0 µA at 2.0 V, and operates over a junction temperature range of -65°C to +150°C. As an AEC-Q101 qualified component, it is well-suited for automotive applications and other high-density scenarios where space is at a premium, such as cellular phones and portable devices.