18HC Datasheet | SEMTECH

HC Series Silicon Epitaxial Planar Zener Diodes Max. 0.5 Max. 1.9 Min. 27.5 Black Cathode Band Black Part No. Black "ST" Brand Max. 3.9 Min. 27.5 Glass Case DO-35 Dimensions in mm Absolute Maximum Ratings (Ta = 25 OC) Parameter Symbol Value Power Dissipation Ptot 500 1) Junction Temperature Tj 175 Storage Temperature Range Tstg - 65 to + 175 1) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case. Unit m W OC OC Characteristics at Ta = 25 OC Parameter Symbol Max. Thermal Resistance Junction to Ambient Air Rth A 0.3 1) Forward Voltage at IF = 100 m A VF 1 1) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case. Unit K/m W SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a pany listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 18/07/2009 HC...