BZX585 series - Voltage regulator diodes SOD 2-Pin
DIODE ZENER 3.6V 300MW SOD523
DIODE ZENER 5.1V 300MW SOD523
Zener Diode Single 5.6V 2% 300mW SC Surface Mount
Diode Zener Single 5.6V 5% 300mW 2-Pin SOD-523 T/R