The MMBZ5245BLT1G is a diode produced by ON Semiconductor. It is a Zener diode with a voltage rating of 15V and operating power dissipation of 225mW. This diode is commonly used for voltage-stabilization, voltage regulation, circuit protection, and other applications that require a stable voltage source. It is a surface mount device that is typically packaged in an SOT-23 package with two lead terminals.