SS32A thru SS310A SURFACE MOUNT REVERSE VOLTAGE SCHOTTKY BARRIER RECTIFIERS - 20 to100 Volts FORWARD CURRENT - 3.0 Amperes FEATURES SMA ●For surface mounted applications ●Metal-Semiconductor junction with guarding ●Epitaxial construction ●Very low forward votage drop .062(1.60) .055(1.40) ●High current capability .114(2.90) .098(2.50) ●Plastic material has UL flammability classification 94V-0 .181(4.60) .157(4.00) ●For use in lowvoltage, high frequency inverters, free wheeling, and polarity protection applications. .012(.305) .006(.152) .103(2.62) .079(2.00) MECHANICAL DATA ●Case： Molded Plastic .060(1.52) .030(0.76) ●Polarity: lndicated by cathode band ●Weight: 0.002 ounces,0.064 grams .008(.203) .002(.051) .208(5.28) .188(4.80) Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating at 25℃ ambient temperature unless otherwise specified. Single phase, half wave ,60Hz, resistive or inductive load. For capacitive load, derate current by 20% CHARACTERISTICS SYMBOL SS32A SS33A SS34A SS35A SS36A SS38A SS310A UNIT Maximum Recurrent Peak Reverse Voltage VRRM 20 30 40 50 60 80 100 V Maximum RMS Voltage VRMS 14 21 28 35 42 56 70 V VDC 20 30 40 50 60 80 100 V Maximum DC Blocking Voltage Maximum Average Forward Rectified Current Peak Forward Surage Current @TL=100 ℃ 8.3ms Single Half Sine-Wave Super Imposed On Rated Load (JEDEC Method) Maximum Forward Voltage at 3.0A DC Maximum DC Reverse Current @TJ=25℃ at Rated DC Blocking Voltage @TJ=100℃ I(AV) 3.0 A IFSM 80 A VF 0.45 0.55 0.7 0.6 1.0 IR 20 0.85 V mA CJ 250 pF Typical Thermal Resistance (Note2) RθJL 10 ℃/W Typical Thermal Resistance (Note3) RθJA 50 ℃/W TJ -55 to + 150 ℃ TSTG -55 to + 175 ℃ Typical Junction Capacitance (Note1) Operating Temperature Range Storage Temperature Range NOTES:1.Measured at 1.0 MHz and applied reverse voltage of 4.0V DC. 2.Thermal resistance junction to lead. 3.Thermal resistance junction to ambient. ~ 165 ~ RATING AND CHARACTERTIC CURVES SS32A thru SS310A FIG.2 - MAXIMUM NON-REPETITIVE SURGE CURRENT FIG. 1 - FORWARD CURRENT DERATING CURVE PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD CURRENT AMPERES 5.0 4.0 3.0 2.0 SINGLE PHASE HALF WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD 1.0 0 25 50 75 100 125 150 120 100 80 60 40 PULSE WIDTH 8.3ms SINGLE HALF-SINE-WAVE (JEDEC METHOD) 20 0 1 175 2 5 10 20 50 100 NUMBER OF CYCLES AT 60Hz LEAD TEMPERATURE ℃ FIG.3-TYPICAL FORWARD CHARACTERISTICS FIG.4-TYPICAL JUNCTION CAPACITANCE 20 1000 CAPACITANCE，（ PF） SS33A 10 SS34A SS35A -SS36A 1.0 SS38A -SS310A 100 T J = 25°C PULSE WIDTH 300us 1% DUTY CYCLE T J=25℃ f=1MHZ 10 0.1 0.1 0 0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.0 1.7 FIG.5-TYPICAL REVERSE CHARACTERISTICS 100 T J=125℃ 10 T J=100℃ 1.0 0.1 0.01 T J=25℃ 0.001 0 20 4.0 10.0 REVERSE VOLTAGE,VOLTS INSTANTANEOUS FORWARD VOLTAGE, (VOLTS) INSTANTANEOUS REVERSE CURRENT, (mA ) INSTANTANEOUS FORWARD CURRENT, (A) SS32A 40 60 80 100 120 PERCENT RATED PEAK REVERSE VOLTAGE,(%) ~ 166 ~ 140 100