Symbol PD Parameter Power Dissipation TL 75�C, Lead Length = 3/8" Derate above 75�C TJ, TSTG Operating and Storage Temperature Range* These ratings are limiting values above which the serviceability of the diode may be impaired.
Notes: 1. Zener Voltage (VZ) Measurement Nominal zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (TL) � 1�C and 3/8" lead length. 2. Zener Impedance (ZZ) Derivation ZZT and ZZK are measured by dividing the ac voltage drop across the device by the ac current applied. The specified limits are for IZ(ac) = 0.1 IZ(dc) with the ac frequency 60Hz. 3. Maximum Zener Current Ratings (IZM) The maximum current handling capability on a worst case basis is limited by the actual zener voltage at the operation point and the power derating curve.
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