MR850 - MR858 FAST RECOVERY RECTIFIER DIODES VOLTAGE RANGE: 50 - 8 00V CURRENT: 3.0 A Features ! ! ! ! ! ! High current capability High surge current capability High reliability Low reverse current Low forward voltage drop Fast switching for high efficiency B A A Mechanical Data C D ! ! Case : DO-201AD Molded plastic Epoxy : UL94V-O rate flame retardant Lead : Axial lead solderable per MIL-STD-202, Method 208 guaranteed ! Polarity : Color band denotes cathode end ! Mounting position : Any ! Weight: 1.2 grams (approx.) DO-201AD Dim Min Max A 25.40 ¾ B 7.20 9.50 C 1.20 1.30 D 4.80 5.30 All Dimensions in mm Maximum Ratings and Electrical Characteristics TA = 25C unless otherwise specified Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. Characteristic Symbol MR850 MR851 MR852 MR854 MR856 MR858 Maximum Recurrent Peak Reverse Voltage VRRM 50 Maximum RMS Voltage VRMS Maximum DC Blocking Voltage VDC Maximum Average Forward Current Unit 100 200 400 600 800 V 35 70 140 280 420 560 V 50 100 200 400 600 800 V IF(AV) 3.0 A IFSM 100 A VF 1.25 V IR 10 µA IR(H) 150 µA Maximum Reverse Recovery Time ( Note 1 ) Trr 150 ns Typical Junction Capacitance ( Note 2 ) CJ 28 pf Junction Temperature Range TJ - 65 to + 150 °C Storage Temperature Range TSTG - 65 to + 150 °C 0.375"(9.5mm) Lead Length Ta = 90 °C Peak Forward Surge Current, 8.3ms Single half sine wave Superimposed on rated load (JEDEC Method) Maximum Peak Forward Voltage at IF = 3.0 A Maximum DC Reverse Current Ta = 25 °C at Rated DC Blocking Voltage Ta = 100 °C Notes : ( 1 ) Reverse Recovery Test Conditions : IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A. ( 2 ) Measured at 1.0 MHz and applied reverse voltage of 4.0 VDC 1 of 2 www.sunmate.tw RATING AND CHARACTERISTIC CURVES ( MR850 - MR858 ) FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM 50 Ω Trr 10 Ω + 0.5 D.U.T. + 0 PULSE GENERATOR ( NOTE 2 ) 50 Vdc (approx) 1Ω - 0.25 OSCILLOSCOPE ( NOTE 1 ) - 1.0 A SET TIME BASE FOR 50 ns/cm NOTES : 1. Rise Time = 7 ns max., Input Impedance = 1 megaohm, 22 pF. 1 2. Rise time = 10 ns max., Source Impedance = 50 ohms. 3. All Resistors = Non-inductive Types. FIG.2 - DERATING CURVE FOR OUTPUT RECTIFIED CURRENT FIG.3 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 100 PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD OUTPUT CURRENT, AMPERES 3.0 2.4 1.8 1.2 0.6 8.3 ms SINGLE HALF SINE WAVE Ta = 50 °C 80 60 40 20 60Hz RESISTIVE OR INDUCTIVE LOAD 0 0 25 50 75 100 125 150 0 175 1 2 AMBIENT TEMPERATURE, ( °C) 6 10 20 40 60 100 FIG.5 - TYPICAL REVERSE CHARACTERISTICS REVERSE CURRENT, MICROAMPERES FIG.4 - TYPICAL FORWARD CHARACTERISTICS 100 FORWARD CURRENT, AMPERES 4 NUMBER OF CYCLES AT 60Hz Pulse Width = 300 µs 2% Duty Cycle TJ = 25 °C 10 1.0 0.1 10 TJ = 100 °C 1.0 0.1 TJ = 25 °C 0.01 0 20 40 60 80 100 120 140 PERCENT OF RATED REVERSE VOLTAGE, (%) 0.01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 FORWARD VOLTAGE, VOLTS 2 of 2 www.sunmate.tw