A diode is a two-terminal electronic component with asymmetric conductance; it has low  resistance to current in one direction, and high  resistance in the other direction. Features Nominal Zener Voltage (Vz): 9.1V Maximum Regulator Current (Izm): 0.040A Max. Reverse Leakage Current (Ir): 0.1uA Forward Voltage Drop (Vf): 1.5V Total Power Dissipation (Ptot): 500mW SKU: RM001772 Category: Zener Diodes (DIP) Warehouse Code: R00020-S04-P03-Z01