The 6.8V Zener Diode (IN4736A) is a complete series of 1 Watt Zener diode with limits and excellent operating characteristics that reflect the superior capabilities of silicon-oxide passivated junctions. All this in an axial-lead hermetically sealed glass package that offers protection in all common environmental conditions. Mechanical Characteristics:- Case: DO-41 Molded Plastic Polarity: Cathode Band Marking: Type Number Weight: 0.35 grams (approx) Terminals: Axial Leads, Solderable per MIL-STD-202, Method 208. Lead Free: For RoHS / Lead Free Version. Add "-LF" Suffix to part Number Specification:- SymbolParameterValueUnits PDPower Dissipation1W TJ Operating Temperature Range-65 to 200degC TSTGStorage Temperature Range-65 to 200degC