S494D

S494D Vishay Telefunken Fast Soft Recovery Rectifier Features D Hermetically sealed axial–leaded glass envelope D Glass passivated D Very low reverse current D Soft recovery characteristics Applications Switched–mode power supplies High–frequency inverter circuits Electronic ballast 95 10526 Absolute Maximum Ratings Tj = 25_C Parameter Reverse voltage =Repetitive peak reverse voltage Peak forward surge current Average forward current Junction and storage temperature range Test Conditions Type Symbol Value Unit VR 600 V =VRRM IFSM 30 A IFAV 1.25 A Tj=Tstg –65...+175 °C tp=8.3ms, half–sinewave l= 10mm, Tamb=38°C Maximum Thermal Resistance Tj = 25_C Parameter Junction ambient Test Conditions lead length l = 10mm, TL = constant Symbol RthJA Value 60 Unit K/W Electrical Characteristics Tj = 25_C Parameter Forward voltage Reverse current Reverse recovery time Test Conditions IF=1A VR=VRRM VR=VRRM, Tj=150°C IF=0.5A, IR=1A, iR=0.25A Type Symbol VF IR IR trr Min Typ Max 1.3 500 150 200 Unit V nA mA ns Document Number 86058 Rev. 2, 24-Jun-98 www.vishay.de FaxBack +1-408-970-5600 1 (3) S494D Vishay Telefunken Characteristics (Tj = 25_C unless otherwise specified) PR – Reverse Power Dissipation ( mW ) 100 10 1 Tj = 25°C 0.1 0.01 250 VR = VRRM 200 150 100 50 0 0 15962 IF – Forward Current ( A ) Tj = 175°C RthJA= 60K/W 110K/W 150K/W 0.001 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 15964 25 50 75 100 125 150 175 VF – Forward Voltage ( V ) Tj – Junction Temperature ( °C ) Fig...