SR2020CT THRU SR2060CT 20.0 AMP SCHOTTKY BARRIER RECTIFIERS VOLTAGE RANGE 20 to 60 Volts CURRENT 20.0 Amperes FEATURES * Low forward voltage drop * High current capability * High reliability * High surge current capability * Epitaxial construction TO-220 .108 (2.75) .248 (6.3) MECHANICAL DATA * Case: Molded plastic * Epoxy: UL 94V-0 rate flame retardant * Lead: Lead solderable per MIL-STD-202, method 208 guranteed * Polarity: As Marked * Mounting position: Any .180 (4.6) 3.8 f +.2 HOLE THRU .412 (10.5) MAX. .050 (1.27) .595 (15.1) MAX. .550 (14.0) .158 (4.0) MIN. MAX. .051 MAX. (1.3) .040 MAX. (1.0) .100 (2.54) .120 (3.05) * Weight: 2.24 grams PIN 1 + PIN 3 CASE PIN 2 Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating 25 C ambient temperature uniess otherwies specified. Single phase half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. TYPE NUMBER Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current SR2020 CT SR2030 CT SR2035 CT SR2040 CT SR2045 CT SR2050 CT SR2060 CT UNITS 20 14 20 30 21 30 35 24 35 40 28 40 45 31 45 50 35 50 60 42 60 V V V See Fig. 1 Peak Forward Surge Current, 8.3 ms single half sine-wave 150 superimposed on rated load (JEDEC method) Maximum Instantaneous Forward Voltage per Leg at 10.0A Maximum DC Reverse Current Ta=25 C at Rated DC Blocking Voltage Typical Thermal Resistance RqJC (Note 1) Operating Temperature Range TJ Storage Temperature Range TSTG NOTES: 1. Thermal Resistance Junction to Case. A 20 0.65 0.75 10 100 Ta=100 C 2.0 -65 -65 +125 -65 +150 +150 A V mA mA C/W C C RATING AND CHARACTERISTIC CURVES (SR2020CT THRU SR2060CT) FIG.1-TYPICAL FORWARD CURRENT DERATING CURVE FIG.2-TYPICAL FORWARD 50 060 CT 0 20 40 60 80 100 120 140 160 180 200 CASE TEMPERATURE,( C) T T 20 60 C 2 SR T~ CT 0 5.0 T~ SR 0C 04 5 5 T~ SR 20 45 C 205 R2 ~S CT 10 10 SR 20 50 C SR 020 15 INSTANTANEOUS FORWARD CURRENT,(A) 20 SR 20 20 C 25 2 SR 1.0 Tj=25 C Pulse Width 300us 1% Duty Cycle 0.1 .01 .1 .2 .3 .4 .5 .6 .7 .8 FORWARD VOLTAGE,(V) FIG.4-MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT FIG.3 - TYPICAL REVERSE CHARACTERISTICS PEAK FORWARD SURGE CURRENT,(A) 100 REVERSE LEAKAGE CURRENT, (mA) AVERAGE FORWARD CURRENT,(A) CHARACTERISTICS 30 10 1.0 Tj=75 C .1 150 120 90 Tj=25 C JEDEC method 30 0 1 Tj=25 C 0 20 40 60 5 10 NUMBER OF CYCLES AT 60Hz .01 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE,(%) 8.3ms Single Half Sine Wave 60 50 100