SR4020PT THRU SR4060PT 40.0 AMPS. Schottky Barrier Rectifiers Voltage Range 20 to 60 Volts Current 40.0 Amperes TO-3P/TO-247AD Features Dual rectifier construction, positive center-tap Plastic package has Underwriters Laboratory Flammability Classifications 94V-0 Metal silicon junction, majority carrier conduction Low power loss, high efficiency High current capability, low VF High surge capability Epitaxial construction For use in low voltage, high frequency inverters, free wheeling, and polarity protection applications High temperature soldering guaranteed: 260OC/ 10 seconds, 0.17”(4.3mm)lead lengths at 5 lbs., (2.3kg) tension Mechanical Data Cases: JEDEC TO-3P/TO-247AD molded plastic Terminals: Leads solderable per MIL-STD-750, Method 2026 Polarity: As marked Mounting position: Any Weight: 0.2 ounce, 5.6 grams 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% SR SR Symbol Type Number Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current at Tc=100℃ Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) Maximum Instantaneous Forward Voltage 20.0A (Note 3) Maximum D.C. Reverse Current @ Tc=25℃ at Rated DC Blocking Voltage @ Tc=100℃ Typical Thermal Resistance Per Leg (Note 1) Typical Junction Capacitance (Note 2) Operating Junction Temperature Range Storage Temperature Range VRRM VRMS VDC 4020PT 20 14 20 4030PT 30 21 30 SR 4040PT 40 28 40 SR 4050PT 50 35 50 SR 4060PT 60 42 60 Units V V V I(AV) 40 A IFSM 400 A VF 0.55 0.70 1.0 75 IR RθJC Cj TJ TSTG 1.2 1100 -65 to +125 -65 to +150 V mA mA 600 -65 to +150 ℃/W pF ℃ ℃ Notes: 1. Thermal Resistance from Junction to Case Per Leg, with Heatsink size (4” x 6” x 0.25”) Al-Plate. 2. Measured at 1 MHz and Applied Reverse Voltage of 4.0V D.C. 3. 300 us Pulse Width, 2% Duty Cycle - 162 - RATINGS AND CHARACTERISTIC CURVES (SR4020PT THRU SR4060PT) FIG.3- MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT PER LEG FIG.1- FORWARD CURRENT DERATING CURVE PEAK FORWARD SURGE CURRENT. (A) 40 PT 20 T -40 -60P 020 050 30 SR4 SR4 AVERAGE FORWARD CURRENT. (A) 400 10 300 200 100 0 0 50 100 o CASE TEMPERATURE. ( C) 0 5C .10 0 75 C .01 0 = Tc 20 10 20 50 100 FIG.4- TYPICAL FORWARD CHARACTERISTICS PER LEG 100 INSTANTANEOUS FORWARD CURRENT. (A) 2 Tc=1 40 60 80 25 C SR4020PT THRU SR4040PT SR4050PT THRU SR4060PT 10 1.0 0 Tj=25 C PULSE WIDTH-300 S 1% DUTY CYCLE 100 120 0.1 140 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 INSTANTANEOUS FORWARD VOLTAGE. (V) PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) FIG.5- TYPICAL JUNCTION CAPACITANCE PER LEG 4000 JUNCTION CAPACITANCE.(pF) .001 0 5 0 0C 1.0 Tc= 2 NUMBER OF CYCLES AT 60Hz FIG.2- TYPICAL REVERSE CHARACTERISTICS PER LEG 5 Tc=1 1 150 10 INSTANTANEOUS REVERSE CURRENT. (mA) 8.3ms SINGLE HALF SINE WAVE PER LEG. (JEDEC METHOD) Tj=Tj max. 2000 SR4020-40PT 1000 800 600 SR4050-60PT 400 200 100 0.1 0.4 1.0 4 10 REVERSE VOLTAGE. (V) - 163 - 40 80 100