1SS178 HIGH SPEED SWITCHING DIODE DO - 34 Glass FEATURES : • High switching speed: max. 4 ns • Continuous reverse voltage:max. 80 V • Repetitive peak reverse voltage:max. 90 V • Pb / RoHS Free 1.00 (25.4) min. 0.078 (2.0 )max. 0.118 (3.0) max. Cathode Mark 1.00 (25.4) min. 0.019 (0.50)max. MECHANICAL DATA : Case: DO-34 Glass Case Weight: approx. 0.093g Dimensions in inches and ( millimeters ) Maximum Ratings and Thermal Characteristics (Rating at 25 °C ambient temperature 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 Electrical Characteristics Parameter (Ta = 25°C unless otherwise noted) 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 Page 1 of 1 IF = 10 mA , VR = 6 V RL = 50 Ω Rev. 01 : August 17, 2005