CHENMKO ENTERPRISE CO.,LTD SSM24ALPT SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER VOLTAGE RANGE 40 Volts CURRENT 2.0 Amperes FEATURES * Plastic package has Underwriters Laboratory Flammability Classification 94V-0 * For surface mounted applications * Low leakage current * Built-in strain relief * Metal silicon junction, majority carrier conduction * Low power loss, high efficiency * High current capability, low forward voltage drop * High surge capability * For use in low voltage high frequency inverters, free wheeling, and polarity protection applications * High temperature soldering guaranteed : 260oC/10 seconds at terminals SMA-S + 0.2 2.6 - 0.2 + 0.2 1.4 - 0.2 + 0.2 3.5 - 0.2 MECHANICAL DATA + 0.02 0.5 - 0.02 Case: JEDEC SMA-S molded plastic Terminals: Solder plated, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end 0.975 + 0.1 - 0.1 + 0.02 0.2 - 0.02 + 0.02 1.08 - 0.02 MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS + 0.2 4.5 - 0.2 o Ratings at 25 C ambient temperature unless otherwise specified. Single phase, half wave, 60 HZ, resistive or inductive load. For capacitive load, derate current by 20%. Dimensions in millimeters SMA-S MAXIMUM RATINGES ( At TA = 25oC unless otherwise noted ) RATINGS SYMBOL SSM24ALPT UNITS Maximum Recurrent Peak Reverse Voltage VRRM 40 Volts Maximum RMS Voltage VRMS 28 Volts IO 2.0 Amps IFSM 40 Amps CJ 250 Maximum Average Forward Rectified Current Peak Forward Surge Current 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Typical Junction Capacitance (Note 2) Typical Thermal Resistance (Note 1) R Operating and Storage Temperature Range JL TJ,TSTG 20 -65 to +125 pF o C/W o C ELECTRICAL CHARACTERISTICS ( At TA = 25oC unless otherwise noted ) CHARACTERISTICS SYMBOL Maximum Instantaneous Forward Voltage at I F =2A VF @ TA = 25oC Maximum Average Reverse Current SSM24ALPT UNITS 0.37 Volts 0.1 mAmps 10 mAmps IR o @ TA = 100 C NOTES : 1. Thermal Resistance ( Junction to Lead ) : PC Board Mounted on 0.31 X 0.31" ( 8 X 8mm ) copper pad area. 2. Measured at 1.0 MHZ and applied reverse voltage of 10 volts. 2005-10 RATING CHARACTERISTIC CURVES ( SSM24ALPT ) INSTANTANEOUS FORWARD CURRENT, ( A ) AVERAGE FORWARD CURRENT, (A) FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE 2.00 1.50 1.00 Single Half Wave 60HZ Resistive or Inductive Load .50 0 0 25 50 75 100 125 150 175 o LEAD TEMPERATURE, ( C ) FIG. 2 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 20 10 1.0 0.1 TJ =25oC Pulse Width=300us 1% Duty Cycle 0 .2 .3 .4 .5 .6 .7 .8 .9 1.0 INSTANTANEOUS FORWARD VOLTAGE,(V) FIG. 3 - TYPICAL REVERSE CHARACTERISTICS FIG. 4 - MAXIMUM NON-REPETIVE FORWARD SURGE CURRENT 100 PEAK FORWARD SURGE CURRETN(A) 50 10 TJ = 100oC 1.0 .10 TJ = 25oC .01 40 8.3ms Single Half Sine-Wave (JEDEC Method) 30 20 10 0 .001 0 20 40 60 80 100 120 1 2 PERCENT OF RATED PEAK REVERSE VOLTAGE, ( % ) 4 FIG. 5 - TYPICAL JUNCTION CAPACITANCE TJ = 25oC 1000 100 .1 .4 1.0 6 8 10 20 40 NUMBER OF CYCLES AT 60 Hz 5000 JUNCTION CAPACITANCE, ( pF ) INSTANTANEOUS REVERSE CURRENT, (mA) .1 4 10 REVERSE VOLTAGE, ( V ) 40 80 80 100