BUY BZX84C43LT1 https://www.utsource.net/itm/p/11273507.html
BZX84C43LT1 Zener Diodes 43V 225mW/0.225W SOT23-43V marking Y15 low power
Description: Zener Diode, 43V, 0.5W, SOT23 Features: Low profile surface mount package High temperature soldering guaranteed: 260°C/10s at terminals Low leakage current Low zener impedance High reliability ESD protection Applications: Voltage regulation Voltage stabilization Voltage reference Surge protection ESD protection (For reference only)