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| RECTRON SEMICONDUCTOR TECHNICAL SPECIFICATION SR820 THRU SR860 SCHOTTKY BARRIER RECTIFIER VOLTAGE RANGE 20 to 60 Volts CURRENT 8.0 Amperes FEATURES * * * * * * Low switching noise Low forward voltage drop Low thermal resistance High current capability High surge capabitity High reliability TO-220A .413 (10.5) .374 (9.5) .153 (3.9) .146 (3.7) .270 (6.9) .230 (5.8) .610 (15.5) .583 (14.8) .04MAX. (1.0) .157 (4.0) .051 (1.3) .043 (1.1) .035 (0.9) .102 (2.6) .091 (2.3) .583 (14.8) .531 (13.5) .187 (4.7) .148 (3.8) .053 (1.3) .047 (1.2) MECHANICAL DATA * * * * * Case: To-220A molded plastic Epoxy: Device has UL flammability classification 94V-O Lead: MIL-STD-202E method 208C guaranteed Mounting position: Any Weight: 2.24 grams .108 (2.75) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 o C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. .022 (0.56) .014 (0.36) .126 (3.2) Dimensions in inches and (millimeters) MAXIMUM RATINGS (At TA = 25 oC unless otherwise noted) RATINGS Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current at Derating Case Temperature Peak Forward Surge Current 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Typical Thermal Resistance (Note 1) Typical Junction Capacitance (Note 3) Operating Temperature Range Storage Temperature Range SYMBOL VRRM VRMS VDC IO IFSM RJC CJ TJ TSTG 700 -65 to + 125 -65 to + 150 SR820 20 14 20 SR830 30 21 30 SR835 35 25 35 SR840 40 28 40 8.0 150 2.5 450 -65 to + 150 SR845 45 32 45 SR850 50 35 50 SR860 60 42 60 UNITS Volts Volts Volts Amps Amps 0 C/ W pF 0 0 C C ELECTRICAL CHARACTERISTICS (At TA = 25oC unless otherwise noted) CHARACTERISTICS Maximum Instantaneous Forward Voltage at 8.0A DC Maximum Average Reverse Current at Rated DC Blocking Voltage @TC = 25 o C @TC = 100 o C SYMBOL VF IR SR820 SR830 SR835 .65 5.0 50 SR840 SR845 SR850 .75 SR860 UNITS Volts mAmps mAmps 2001-4 NOTES : 1. Thermal Resistance Junction to Case. 2. Suffix "R" for Reverse Polarity. 2. Measured at 1 MHz and applied reverse voltage of 4.0 volts. RATING AND CHARACTERISTIC CURVES ( SR820 THRU SR860 ) AVERAGE FORWARD CURRENT, (A) FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE 10 8 8 SR FIG. 2 - TYPICAL REVERSE CHARACTERISTICS 10 INSTANTANEOUS REVERSE CURRENT, (mA) TC = 150 8 SR 50~ 6 4 2 0 0 Single Phase Half Wave 60Hz Inductive or Resistive Load 8 SR 50 100 CASE TEMPERATURE, ( 20~ 845 SR 1.0 TC = 125 60 TC = 75 .1 TC = 25 150 ) PEAK FORWARD SURGE CURRENT, (A) FIG. 3 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT .01 155 8.3ms Single Half Sine-Wave (JEDED Method) 150 145 140 135 130 125 1 2 5 10 20 50 NUMBER OF CYCLES AT 60Hz 100 .001 0 20 40 60 80 SR820~SR845 SR850~SR860 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) FIG. 4 - TYPICAL JUNCTION CAPACITANCE 4000 JUNCTION CAPACITANCE, (pF) INSTANTANEOUS FORWARD CURRENT, (A) FIG. 5 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 50 2000 SR820~SR845 SR820~SR845 10 1000 800 600 400 SR850~SR860 SR850~SR860 1.0 200 100 .1 0.1 .1 TJ = 25 Pulse Width=300uS 1% Duty Cycle .4 1.0 4 10 REVERSE VOLTAGE, ( V ) 40 80 100 .2 .3 .4 .5 .6 .7 .8 .9 1.0 INSTANTANEOUS FORWARD VOLTAGE, (V) RECTRON |
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