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| MR850 THRU MR858 3.0 AMPS. Fast Recovery Rectifiers Voltage Range 50 to 800 Volts Current 3.0 Amperes Features Low forward voltage drop High current capability High reliability High surge current capability DO-201AD Mechanical Data Cases: Molded plastic Epoxy: UL 94V-0 rate flame retardant Lead: Axial leads, solderable per MILSTD-202, Method 208 guaranteed Polarity: Color band denotes cathode end High temperature soldering guaranteed: 260/10 seconds/.375",(9.5mm) lead lengths at 5 lbs.,(2.3kg) tension Weight: 1.2 grams Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Symbol MR Type Number MR Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current .375"(9.5mm) Lead Length @TA = 55 Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) Maximum Instantaneous Forward Voltage @ 3.0A Maximum DC Reverse Current @ TA=25 at Rated DC Blocking Voltage @ TA=100 Maximum Reverse Recovery Time ( Note 1 ) Typical Junction Capacitance ( Note 2 ) Typical Thermal Resistance ( Note 3 ) Operating Temperature Range Storage Temperature Range VRRM VRMS VDC I(AV) IFSM VF IR Trr Cj RJA TJ 850 50 35 50 851 100 70 100 MR 852 200 140 200 3.0 MR 854 400 280 400 MR 856 600 420 600 MR Units 858 800 V 560 V 800 V A A 1.3 V uA uA nS pF O 150 1.25 10 200 100 60 45 -65 to +150 -65 to +150 150 C/W TSTG Notes:1. Reverse Recovery Test Conditions: IF=0.5A, IR=1.0A, IRR=0.25A 2. Measured at 1 MHz and Applied Reverse Voltage of 4.0 Volts D.C. 3. Mount on Cu-Pad Size 16mm x 16mm on P.C.B. - 414 - RATINGS AND CHARACTERISTIC CURVES (MR850 THRU MR858) FIG.1- MAXIMUM FORWARD CURRENT DERATING CURVE AVERAGE FORWARD CURRENT AMPERES 4 150 FIG.2- MAXIMUM NON-REPETITIVE PEAK SURGE CURRENT PEAK FORWARD SURGE CURRENT. (A) 3 100 2 50 1 Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375"(9.5mm) Lead Length 0 25 50 75 100 o Tj=25 0C 8.3ms Single Half Sine Wave JEDEC Method 0 125 150 175 AMBIENT TEMPERATURE. ( C) 10 1 5 10 50 100 NUMBER OF CYCLES AT 60Hz FIG.3- TYPICAL FORWARD CHARACTERISTICS 20 10 90 80 FIG.4- TYPICAL JUNCTION CAPACITANCE INSTANTANEOUS FORWARD CURRENT. (A) MR850-MR854 3 JUNCTION CAPACITANCE.(pF) 60 1 MR856-MR858 0.3 40 20 Tj=25 0C 0.1 Tj=25oC Pulse Width=300 s 1% Duty Cycle 0 1 2 4 6 10 20 REVERSE VOLTAGE. (V) 40 60 100 0.03 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 FORWARD VOLTAGE. (V) FIG.5- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM 50W NONINDUCTIVE 10W NONINDUCTIVE +0.5A (-) DUT (+) 50Vdc (approx) (-) PULSE GENERATOR (NOTE 2) 1W NON INDUCTIVE OSCILLOSCOPE (NOTE 1) (+) 0 -0.25A trr NOTES: 1. Rise Time=7ns max. Input Impedance= 1 megohm 22pf 2. Rise Time=10ns max. Sourse Impedance= 50 ohms -1.0A 1cm SET TIME BASE FOR 5/ 10ns/ cm - 415 - |
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