Zener Diode 1N4731A 4.3V 1W

From the shop's description

Description 4.3V 1W Glass encapsulated zener diode in industry-standard DO-41 package. Can be mounted in any position. The black band denotes the cathode end. Definition A Zener diode is a special type of diode designed to reliably allow current to flow backward when a certain set reverse voltage, known as the Zener voltage, is reached. Specifications Attribute Value Category Diodes/Zener Diodes Reverse Leakage Current (Ir) 50uA@1V Zener Impedance (Zzt) 9Ω Diode Configuration Single Power Dissipation 1W Zener Voltage (Nom) 4.3V Tolerance 5% Package DO-41 1N4731A Datasheet