SR2020PT THRU SR2060PT 20.0 AMPS. Schottky Barrier Rectifiers Voltage Range 20 to 60 Volts Current 20.0 Amperes TO-3P/TO-247AD Features a a a a a a a a a a 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 Guardring for transient protection High temperature soldering guaranteed: 250°C/10seconds,0.17”(4.3mm)lead lengths at 5 lbs., (2.3kg) tension Mechanical Data a a a a a 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°C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% SR2020PT SR2030PT SR2040PT SR2050PT SR2060PT Type Number Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current at Tc=105°C Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) Maximum Instantaneous Forward Voltage @10.0A (Note 3) Maximum D.C. Reverse Current @ Tc=25°C at Rated DC Blocking Voltage @ Tc=100°C 20 14 20 30 21 30 40 28 40 50 35 50 60 42 60 A 250 A 0.700 1.0 50 1.5 Typical Junction Capacitance (Note 2) Operating Junction Temperature Range TJ Storage Temperature Range TSTG 600 -65 to +125 -65 to +150 Notes: 1. Thermal Resistance from Junction to Case Per Leg. Notes: 2. Measured at 1 MHz and Applied Reverse Voltage of 4.0V D.C. Notes: 3. 300 us Pulse Width, 2% Duty Cycle - 92 - V V V 20 0.550 Typical Thermal Resistance Per Leg (Note 1) Units 400 -65 to +150 V mA mA °C/W pF °C °C RATINGS AND CHARACTERISTIC CURVES (SR2020PT THRU SR2060PT) 040PT 8.0 PEAK FORWARD SURGE CURRENT. (A) 20PT-2 12.0 300 0PT -206 50PT SR20 16.0 SR20 AVERAGE FORWARD CURRENT. (A) 20.0 FIG.2- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT PER LEG FIG.1- MAXIMUM FORWARD CURRENT DERATING CURVE 4.0 0 0 50 100 150 8.3ms Single Half Sine Wave PER LEG. (JEDEC Method) Tj=Tj max. 250 200 150 100 50 1 2 5 o CASE TEMPERATURE. ( C) FIG.3- TYPICAL REVERSE CHARACTERISTICS PER LEG 50 100 100 INSTANTANEOUS FORWARD CURRENT. (A) Tj=75 0C .10 SR2020PT THRU SR2040PT 10 SR2050PT THRU SR2060PT 1.0 Tj=25 0C .01 0 20 40 60 80 100 120 0.1 140 Tj=25oC Pulse Width=300 s 2% Duty Cycle .2 .3 .4 .5 .6 .7 .8 .9 INSTANTANEOUS FORWARD VOLTAGE. (V) PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) FIG.5- TYPICAL JUNCTION CAPACITANCE PER LEG 4000 Tj=25 0C f=1.0MHz Vsig=50mVp-p 2000 CAPACITANCE.(pF) INSTANTANEOUS REVERSE CURRENT MILLIAMPERES Tj=100 0C 1.0 20 FIG.4- TYPICAL FORWARD CHARACTERISTICS 100 10 10 NUMBER OF CYCLES AT 60Hz SR20 20PT 1000 800 600 -2040 SR2050 PT PT-2060 PT 400 200 100 .1 .4 1.0 4 10 REVERSE VOLTAGE. (V) - 93 - 40 100