CHENMKO ENTERPRISE CO.,LTD SSM14LLPT SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER VOLTAGE RANGE 40 Volts CURRENT 1.0 Ampere FEATURES * Plastic package has Underwriters Laboratory Flammability Classification 94V-0 * For surface mounted applications * Low profile package * 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 0.110(2.80) 0.065(1.65) 0.094(2.40) 0.049(1.25) (1) 0.181(4.60) (2) 0.165(4.20) MECHANICAL DATA Case: JEDEC SMA molded plastic Terminals: Solder plated, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Weight: 0.002 ounce 0.064 gram 0.012(0.310) 0.006(0.150) 0.090(2.30) 0.075(1.90) 0.060(1.52) 0.008 (0.203)(max) 0.030(0.76) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS 0.212(5.40) o 0.189(4.80) 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 inches and (millimeters) SMA MAXIMUM RATINGES ( At TA = 25oC unless otherwise noted ) SYMBOL SSM14LLPT UNITS Maximum Recurrent Peak Reverse Voltage RATINGS VRRM 40 Volts Maximum RMS Voltage VRMS 28 Volts Maximum DC Blocking Voltage VDC 20 Volts IO 1.0 Amps IFSM 30 Amps CJ 110 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 25 -65 to +125 pF o C/W o C ELECTRICAL CHARACTERISTICS ( At TA = 25oC unless otherwise noted ) CHARACTERISTICS Maximum Instantaneous Forward Voltage at I F =1A VF @ TA = 25oC Maximum Average Reverse Current at VR=20V SSM14LLPT UNITS 0.27 Volts 1.0 mAmps 40 mAmps IR o @ TA = 100 C NOTES : 1. Thermal Resistance ( Junction to Lead ) : PC Board Mounted on 0.2 X 0.2" ( 5 X 5mm ) copper pad area. 2. Measured at 1.0 MHZ and applied reverse voltage of 4.0 volts. 2002-3 RATING CHARACTERISTIC CURVES ( SSM14LLPT ) 1.0 .75 .50 Single Half Wave 60HZ Resistive or Inductive Load .25 0 0 25 50 75 100 125 150 175 o LEAD TEMPERATURE, ( C ) FIG. 2 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS INSTANTANEOUS FORWARD CURRENT, ( A ) AVERAGE FORWARD CURRENT, (A) FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE 20 10 1.0 0.1 TJ =25oC Pulse Width=300us 1% Duty Cycle 0 .1 .3 .4 .5 FIG. 4 - MAXIMUM NON-REPETIVE FORWARD SURGE CURRENT FIG. 3 - TYPICAL REVERSE CHARACTERISTICS 1000 PEAK FORWARD SURGE CURRETN(A) 50 100 o TJ = 100 C 10 1.0 TJ = 25oC 0.1 40 8.3ms Single Half Sine-Wave (JEDEC Method) 30 20 10 0 .01 0 20 40 60 80 100 120 1 140 2 4 6 FIG. 5 - TYPICAL JUNCTION CAPACITANCE 400 200 TJ = 25oC 100 80 60 40 20 10 .1 .4 8 10 20 40 NUMBER OF CYCLES AT 60 Hz PERCENT OF RATED PEAK REVERSE VOLTAGE, ( % ) JUNCTION CAPACITANCE, ( pF ) INSTANTANEOUS REVERSE CURRENT, (mA) .2 INSTANTANEOUS FORWARD VOLTAGE,(V) 1.0 4 10 REVERSE VOLTAGE, ( V ) 40 80 80 100