SRA2020 THRU SRA2060 20.0 AMPS. Schottky Barrier Rectifiers Voltage Range 20 to 60 Volts Current 20.0 Amperes TO-220A Features .185(4.70) .175(4.44) Low forward voltage drop High current capability High reliability High surge current capability .412(10.5) MAX .113(2.87) .103(2.62) .27(6.86) .23(5.84) .594(15.1) .587(14.9) Mechanical Data .055(1.40) .045(1.14) DIA .154(3.91) .148(3.74) PIN1 2 .16(4.06) .14(3.56) Cases: TO-220A molded plastic Epoxy: UL 94V-O rate flame retardant Terminals: Leads solderable per MIL-STD-202, Method 208 guaranteed Polarity: As marked High temperature soldering guaranteed: 260OC/10 seconds.25”,(6.35mm) from case. Weight: 2.24 grams .11(2.79) .10(2.54) .56(14.22) .53(13.46) .037(0.94) .027(0.68) .025(0.64) .014(0.35) .205(5.20) .195(4.95) Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25℃ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Type Number Symbol SRA SRA SRA 2020 2030 2040 Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current See Fig. 1 Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) Maximum Instantaneous Forward Voltage @20.0A Maximum D.C. Reverse Current @ Tc=25℃ at Rated DC Blocking Voltage @ Tc=100℃ VRRM VRMS VDC 20 14 20 30 21 30 40 28 40 SRA 2050 SRA 2060 Units 50 35 50 60 42 60 V V V I(AV) 20.0 A IFSM 300 A VF IR 0.55 0.70 1.0 50 1.5 RθJC TJ -65 to +125 -65 to +150 Storage Temperature Range TSTG -65 to +150 Notes: Mounted on Heatsink Size of 2 in x 3 in x 0.25 in Al-Plate. Typical Thermal Resistance (Note) Operating Junction Temperature Range - 178 - V mA mA ℃/W ℃ ℃ RATINGS AND CHARACTERISTIC CURVES (SRA2020 THRU SRA2060) FIG.1- MAXIMUM FORWARD CURRENT DERATING CURVE FIG.2- TYPICAL REVERSE CHARACTERISTICS 10 Tj=100 0C SRA2050-60 16 12 SRA2020-40 8 4 0 0 50 100 150 o CASE TEMPERATURE. ( C) INSTANTANEOUS REVERSE CURRENT. (mA) AVERAGE FORWARD CURRENT. (A) 20 1.0 Tj=75 0C .10 Tj=25 0C .01 FIG.3- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT .001 300 20 40 60 80 100 120 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) 8.3ms Single Half Sine Wave JEDEC Method 250 FIG.4- TYPICAL FORWARD CHARACTERISTICS 50 200 150 100 50 1 2 5 10 20 50 100 NUMBER OF CYCLES AT 60Hz INSTANTANEOUS FORWARD CURRENT. (A) PEAK FORWARD SURGE CURRENT. (A) 350 10 SRA2020-40 SRA2050-60 1.0 Tj=25oC Pulse Width=300 s 1% Duty Cycle 0.1 .1 .2 .3 .4 .5 .6 .7 FORWARD VOLTAGE. (V) - 179 - .8 .9 1.0