The MMSZ5256BS is a single 200mW, 28.5V-31.5V, 0.1uA, 49ohm, 30V SOD-323 zener diode designed by Changjing Electronics Technology and compliant with ROHS standards. It is designed specifically for applications requiring high-voltage protection and switching in a low-profile package. It features superior electrical parameters and is suitable for use in many applications, including industrial, automotive, medical, lighting, instrumentation, communications, and aerospace. The diode offers exceptional stability and reliability at high operating temperatures, making it a preferred choice in a variety of applications.