BZT55-B39

BZT55 Series Zener Voltage Range: 2.4 to 75 Volts Zener Diodes Power Dissipation: 500mW Features Very sharp reverse characteristic Low reverse current level Available with tighter tolerances Very high stability Low noise For voltage stabilization Package Dimensions in mm (inches) Mechanical Data Case: QuadroMELF (SOD-80) Weight: approx. 0.034g Maximum Ratings and Thermal Characteristics (Tamb=25oC, unless otherwise specified) Parameter Zener current (see Table "Characteristics") Power dissipation at RthJA < 300K/W Junction temperature Storage temperature range Forward voltage at IF=200mA Junction ambient on PC board 50mm X 50mm X 1.6mm Symbol IZ Ptot Tj Tstg VF RθJA Value Ptot/VZ 500 175 -65 to +175 1.5 500 Unit mA mW o C C o V K/W 507 Electrical Characteristics (TA=25oC unless otherwise noted) Zener voltage VZ @ IZT (V) 1) Dynamic resistance at IZT f=1kHz rz j (Ω) < 85 < 85 < 90 < 90 < 90 < 90 < 90 < 80 < 60 < 40 < 10