500mW 18V Surface Mount 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:18 V
- Glass passivated chip junction
- Mounting Style:SMD/SMT
- Package/Case:SOD-80
- Pd – Power Dissipation:500 mW
- Voltage Tolerance:5 %
- Package/Case:SOD-80
- 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
- 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