What Is Zener Diode? A Zener diode is a silicon semiconductor device that permits current to flow in either a forward or reverse direction. The diode consists of a special, heavily doped p-n junction, designed to conduct in the reverse direction when a certain specified voltage is reached. FEATURES : Vz – Zener Voltage:30 V Glass passivated chip junction Mounting Style:SMD/SMT Package/Case:SOD-123 Pd – Power Dissipation:500 mW Voltage Tolerance:5 % Package/Case:SOD-123 RoHS Compliant Zz – Zener Impedance:24 Ohms Minimum Operating Temperature:– 65 C Maximum Operating Temperature: 175 C Test Current:500 mA Dimensions: Height:1.5 mm,Length:3.5 mm,Width:1.5 mm APPLICATIONS : For general purpose regulation and protection applications Inverter & UPS How Zener diode work as voltage regulator. Tolerance and Type Number Designation. The type numbers listed have a standard tolerance on the nominal zener voltage of ±5% Zener Voltage (Vz) Measurement. Guarantees the zener voltage when measured at 90 seconds while maintaining the lead temperature(TL) at 30℃±1°C, from the diode body Zener Impedance (Zz) Derivation. The zener impedance is derives from the 60 cycle AC voltage, which result when an ac current having and rms value equal to 10% of the DC zener current (IZT or IZK) is superimposed on IZT or IZK
