1N4678...1N4717Vishay TelefunkenSilicon Epitaxial Planar Z–DiodesFeatures D Zener voltage specified at 50 mA D Maximum delta VZ given from 10 mA to 100 mA D Very high stability D Low noise Applications 94 9367 Voltage stabilization Absolute Maximum Ratings Tj = 25_C Parameter Test Conditions Type Symbol Value Unit Power dissipation l=4mm, TL=25°C PV 500 mW Z–current IZ PV/VZ mA Junction temperature Tj 175 °C Storage temperature range Tstg –65...+175 °C Maximum Thermal Resistance Tj = 25_C Parameter Test Conditions Symbol Value Unit Junction ambient l=4mm, TL=constant RthJA 300 K/W Electrical Characteristics Tj = 25_C Parameter Test Conditions Type Symbol Min Typ Max Unit Forward voltage IF=100mA VF 1.5 V Document Number 85586 www.vishay.de • FaxBack +1-408-970-5600 Rev. 2, 01-Apr-99 1 (6)