BZX79C12 diodes equivalent, silicon glass passivated 0.5watt zener diodes.
when Hermetcally Sealed in Glass with Double Stud This Glass Passivated Chip Provides Excellent Stability & Reliability..
SYMBOL VALUE UNIT PD 500 mW Power Dissipation PDS 5.0 W Surge Power Dissipation @ tp=83ms Tj, Tstg -65 to +200 deg C Operating & Storage Junction Temperature Range Rth(j-a) 300 deg C/W Thermal Resistance Junction to Ambient (1) ELECTRICAL CHARACTERIS.
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