1N4728A-G-1N4764A-G

      1N4728A-G~1N4764A-G(SILICON ZENER DIODE, VOLTAGE:3.3 to 100 Volts, POWER: 1.0 Watts).
      Some properties of 1N4728A-G~1N4764A-G were known, Terminals(Axial leads, solderable per MIL-STD-750, Method 2026 guaranteed), Polarity(Color band denotes positive end), Case(Molded Glass DO-41G), Mounting position(Any), Weight (0.012 ounce, 0.336 gram).
      At the same time 1N4728A-G~1N4764A-G is low profile package, low inductance, high temperature soldering : 260°C /10 seconds at terminals, built-in strain relief, both normal and Pb free product are available(Normal : 80~95% Sn, 5~20% Pb, Pb free: 98.5% Sn above), and glass package has Underwriters Laboratory Flammability Classification 94V-O.
     Results are getten at 25°C ambient temperature unless otherwise specified. PTOT(power dissipation tamb=25°C)=1W(Valid provided that a distance of 8mm from case are kept at ambient temperature), TJ(Junction temperature)=150°C, Tstg(Storage Temperature range)=-65 to +200, RthJA(Thermal resistance juntion to ambient air)=170K / W( Valid provided that leads at a distance of 4 mm from case are kept at ambient temperature), VF(Forward Voltage at IF = 200 mA)=1.2V. The type umbers listed have a standard tolerance on the nominal zener voltage of 5%. Specials Available Include: Nominal zener voltages between the voltages shown and tighter voltage tolerances; Matched sets. Surge Current (Ir) Non-Repetitive. The rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2. Zener Impedance (Zz) Derivation. The zener impedance is derived from the 60 cycle ac voltage, which results when an ac current having an rms value equal to 10% of the dc zener current (Izt or Izk) is superimposed on Izt or Izk.