BUY BZX84C16LT1 https://www.utsource.net/itm/p/11273054.html
BZX84C16LT1 Zener Diodes 16V 225mW/0.225W SOT23-16V marking Y5 low power
Description: Zener Diode, 16V, 500mW, SOT-23 Features: - Low leakage current - Low zener impedance - High temperature stability - Low noise Application: BZX84C16LT1 is used as a voltage regulator in various circuits, such as power supplies, voltage regulators, and voltage references. It can also be used for protection against overvoltage, reverse polarity, and voltage spikes. (For reference only)