1SS178 100mA Axial Leaded High Speed Switching Diode Features · High switching speed: max. 4 ns · Continuous reverse voltage:max. 80 V · Repetitive peak reverse voltage:max. 90 V · Pb / RoHS Free 0.55 max 1.6 max 25.4 min 3.04 max 25.4 min Mechanical Data DO-34 · Case: DO-34 Glass Case · Weight: approx. 0.093g Maximum Ratings and Electrical Characteristics @ TA = 25°C unless otherwise specified . Parameter Symbol Value Unit Maximum Repetitive Peak Reverse Voltage VRRM 90 V Maximum Continuous Reverse Voltage VRM 80 V Maximum Average Forward Current IF 100 mA Maximum Peak Forward Current IFM 300 mA Maximum Power Dissipation PD 300 mW Maximum Non-repetitive Peak Forward Current IFSM 1.0 A Parameter Symbol Test Condition Min. Typ. Max. Unit Reverse Current IR VR = 80 V - - 0.5 μA Forward Voltage VF IF = 100 mA - - 1.2 V Capacitance between terminals CT f = 1MHz ; VR = 0.5 V - - 3.0 pF Reverse Recovery Time Trr - - 4.0 ns IF = 10 mA , VR = 6 V RL = 50 Ω 1 of 1