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| 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: 250C/10seconds,0.17"(4.3mm)lead lengths at 5 lbs., (2.3kg) tension Mechanical Data 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 a Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25C 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=105C 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=25C at Rated DC Blocking Voltage @ Tc=100C Typical Thermal Resistance Per Leg (Note 1) Units V V V A A 20 14 20 30 21 30 40 28 40 20 250 50 35 50 60 42 60 0.550 1.0 50 1.5 0.700 V mA mA C/W pF C C 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 Typical Junction Capacitance (Note 2) Operating Junction Temperature Range TJ Storage Temperature Range TSTG 400 -65 to +150 - 92 - RATINGS AND CHARACTERISTIC CURVES (SR2020PT THRU SR2060PT) FIG.1- MAXIMUM FORWARD CURRENT DERATING CURVE PEAK FORWARD SURGE CURRENT. (A) 20.0 300 250 200 150 FIG.2- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT PER LEG 8.3ms Single Half Sine Wave PER LEG. (JEDEC Method) Tj=Tj max. 0PT -206 50PT SR20 AVERAGE FORWARD CURRENT. (A) 16.0 SR20 20PT-2 12.0 040PT 8.0 100 50 4.0 0 0 50 o 100 150 1 2 5 10 20 50 100 CASE TEMPERATURE. ( C) NUMBER OF CYCLES AT 60Hz 100 FIG.3- TYPICAL REVERSE CHARACTERISTICS PER LEG FIG.4- TYPICAL FORWARD CHARACTERISTICS 100 INSTANTANEOUS REVERSE CURRENT MILLIAMPERES 10 Tj=100 0C INSTANTANEOUS FORWARD CURRENT. (A) SR2020PT THRU SR2040PT 10 1.0 Tj=75 0C SR2050PT THRU SR2060PT 1.0 .10 Tj=25 0C .01 0 20 40 60 80 100 120 140 0.1 Tj=25oC Pulse Width=300 s 2% Duty Cycle .2 .3 .4 .5 .6 .7 .8 .9 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) INSTANTANEOUS FORWARD VOLTAGE. (V) FIG.5- TYPICAL JUNCTION CAPACITANCE PER LEG 4000 2000 CAPACITANCE.(pF) Tj=25 0C f=1.0MHz Vsig=50mVp-p 1000 800 600 400 SR20 20PT SR2050 -2040 PT PT-2060 PT 200 100 .1 .4 1.0 4 10 40 100 REVERSE VOLTAGE. (V) - 93 - |
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