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| SRAS2035 THRU SRAS2045 20.0 AMPS. Schottky Barrier Rectifiers Voltage Range 35 to 45 Volts Current 20.0 Amperes Features For surface mounted application Low forward voltage drop High current capability High reliability High surge current capability D2PAK Mechanical Data Cases: D2PAK molded plastic Epoxy: UL 94V-0 rate flame retardant Terminals: Lead solderable per MIL-STD-202, Method 208 guaranteed Polarity: As marked High temperature soldering guaranteed: 260OC/10 seconds at terminals Weight: 1.70 grams " Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Symbol SRAS2035 SRAS2040 SRAS2045 Type Number Maximum Recurrent Peak Reverse Voltage VRRM 35 40 45 Maximum RMS Voltage VRMS 25 28 32 Maximum DC Blocking Voltage VDC 35 40 45 Maximum Average Forward Rectified Current See Fig. 1 Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) Maximum Instantaneous Forward Voltage @ 20.0A @ 40.0A Maximum D.C. Reverse Current @ Tj=25 at Rated DC Blocking Voltage @ Tj=125 Typical Thermal Resistance (Note 1) Typical Junction Capacitance (Note 2) Operating Junction Temperature Range Storage Temperature Range Units V V V A A V mA mA /W pF I(AV) IFSM VF IR RJC pF TJ 20.0 350 0.57 0.73 2.7 105 1.5 900 -65 to +150 TSTG -65 to +150 Notes: 1. Thermal Resistance from Junction to Case Per Leg, 2. Measured at 1MHz and Applied Reverse Voltage of 5.0V D.C. - 186 - RATINGS AND CHARACTERISTIC CURVES (SRAS2035 THRU SRAS2045) FIG.1- FORWARD CURRENT DERATING CURVE 20.0 400 FIG.2- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT PER BRIDGE ELEMENT PEAK FORWARD SURGE CURRENT. (A) 300 200 100 AVERAGE FORWARD CURRENT. (A) 16.0 12.0 8.0 80 60 40 20 4.0 0 0 50 100 o 150 1 1.5 2 2.5 3 4 5 6 7 8 9 10 15 20 25 30 40 60 80 100 CASE TEMPERATURE. ( C) NUMBER OF CYCLES AT 60Hz 10 FIG.3- TYPICAL REVERSE CHARACTERISTICS PER LEG 100 FIG.4- TYPICAL FORWARD CHARACTERISTICS PER LEG INSTANTANEOUS REVERSE CURRENT. (mA) 1.0 Tj=1 0 00 C INSTANTANEOUS FORWARD CURRENT. (A) 10 .10 Tj= 75 0 C 1.0 .01 2 Tj= 5C 0 Tj=25 C PULSE WIDTH-300 S 1% DUTY CYCLE .001 0 20 40 60 80 100 120 140 0.1 .2 .3 .4 .5 .6 .7 .8 .9 0 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) INSTANTANEOUS FORWARD VOLTAGE. (V) FIG.5- TYPICAL JUNCTION CAPACITANCE PER LEG 5,000 Tj=25 0C f=1.0MHz Vsig=50mVp-p JUNCTION CAPACITANCE.(pF) 1,000 100 0.1 1 10 REVERSE VOLTAGE. (V) 100 - 187 - |
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