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  • Discrete Semiconductors
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  • Why does Vz fluctuate when Iz is low (below 10µA) in Zener diodes?
    • In the low Zener current region the Zener voltage will become unstable due to the effects of noise during Zener breakdown.
      This will result in variations in the internal impedance, leading to Zener voltage fluctuations.
      Therefore, we recommend a Zener current Iz greater than 1mA in order to ensure stable operation.
    • Products: Zener Diodes  
  • What's the difference between the UDZS and UDZV series?
    • Although the materials and internal structure differ, the specifications (i.e. external dimensions, electrical characteristics) remain the same.
      In contrast to the UDZS series, which features Sn-3Ag-0.5Cu plating, utilizes halogen resin and a wireless bonding method, the newer UDZV series employs 100% Sn plating, utilizes halogen-free resin, and wire bonding processes.
    • Products: Zener Diodes  
  • What's the difference between the EDZS and EDZV series?
    • Although the materials differ, the specifications (i.e. external dimensions, electrical characteristics) remain the same.
      In contrast to the EDZS series, which features Sn-3Ag-0.5Cu plating and utilizes halogen resin, the newer EDZV series employs 100% Sn plating and utilizes halogen-free resin.
    • Products: Zener Diodes  
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