1N4728A - 1N4764A

      1N4728A - 1N4764A is a kind of silicon Planar Power Zener Diodes, which is measured with the device junction in the thermal equilibrium at the lead temperature (TL) at 30°C ± 1°C and 3/8" lead length.
      At the temperature of at 25 °C (unless otherwise specified) of 1N4728A - 1N4764A , PD(Power Dissipation @ TL 50°C, Lead Length = 3/8")=1.0W, PD(PDerate above 50°C)=6.67mW/°C, TJ,Tstg(Operating and Storage Temperature Range)=-65 to +200, and these ratings are limiting values above which the serviceability of the diode may be impaired.
      There are some obvious definition of Terms for 1N4728A - 1N4764A , Advance Information(Formative or In Design, this datasheet contains the design specifications for product develop-ment. Specifications may change in any manner without notice.), No Identification Needed(Full Production, This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.), Preliminary(First Production, This datasheet contains preliminary data, and supplementary data will be published at a later date.Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.), Obsolet (Not In Production, This datasheet contains specifications on a product that has been dis-continued by Fairchild semiconductor.The datasheet is printed for ref-erence information only.).