DL4933-DL4937 1.0Ampere Recovery Rectifiers Glass Passivated MELF Features Glass Passivated Junction Low Leakage Low Forward Voltage Drop High Current Capability For Surface Mounted Application Plastic Material UL Flammability Classification Rating 94V-0 Mechanical Data Case: MELF, Plastic Polarity: Cathode band Approx Weight: 0.25 grams Mounting Position: Any Marking: Cathode Band Only Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. Type Number Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage RMS Reverse Voltage Maximum Average Forward Rectified Current @ TT=75°C Symbol DL4933 DL4934 DL4935 DL4936 DL4937 Units VRRM VRWM VR 50 100 200 400 600 V VR(RMS) 35 70 140 280 420 V IO 1.0 A IFSM 30 A @ IF = 1.0A VF 1.2 V Maximum DC Reverse Current at Rated Blocking Voltage IR 5.0 mA Maximum Full Load Reverse Current Full Cycle Average @ TT = 55°C IR 100 mA Maximum Reverse Recovery Time (Note 1) trr 200 ns Typical Junction Capacitance (Note 2) Cj 15 pF Tj, TSTG -65 to +150 °C Peak Forward Surge Current 8.3 ms half sine-wave superimposed on rated load (JEDEC Method) Maximum Instantaneous Forward Voltage Operating and Storage Temperature Range Notes: 1. Reverse Recovery Test Conditions: IF =1.0A, VR =30V, di/dt = 50 A/ms. 2. Measured at 1.0MHz and Applied Reverse Voltage of 4.0V. http://www.luguang.cn mail:[email protected] DL4933-DL4937 IO, AVERAGE FORWARD RECTIFIED CURRENT (A) IFSM, PEAK FORWARD SURGE CURRENT (A) 1.0Ampere Recovery Rectifiers Glass Passivated 10 1.0 Tj = 25ºC Pulse Width = 300 ms 0.1 0.01 0.6 0.8 1.0 1.2 1.4 1.0 0.8 0.6 0.4 0.2 0 25 75 100 125 150 175 200 100 30 Tj = 150ºC Pulse Width 8.3 ms Single Half Sine-Wave 20 10 0 50 TT, TERMINAL TEMPERATURE (ºC) Fig. 2 Forward Derating Curve Cj, JUNCTION CAPACITANCE (pF) IFSM, PEAK FORWARD SURGE CURRENT (A) VF, INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 1 Peak Forward Surge Current vs Forward Voltage Single Phase Half Wave 60 Hz Resistive or Inductive Load 1 10 100 NUMBER OF CYCLES AT 60 Hz Fig. 3 Peak Fwd Surge Current vs Number of Cycles at 60 Hz http://www.luguang.cn Tj = 25ºC f = 1MHz 10 1 1 10 100 VR, REVERSE VOLTAGE (V) Fig. 4 Junction Capacitance vs Reverse Voltage mail:[email protected]