CHENMKO ENTERPRISE CO.,LTD SCM34SLPT SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER VOLTAGE RANGE 40 Volts CURRENT 3.0 Amperes 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 SMC-S Cathode 0.276(7.0) 0.260(6.6) 0.152(3.8) 0.144(3.6) 0.012(0.3) Typ. 0.189(4.8) 0.173(4.4) MECHANICAL DATA (1) Case: JEDEC SMC-S molded plastic Terminals: Solder plated, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Weight: 0.0056 ounce 0.20 gram (2) 0.244(6.2) 0.228(5.8) 0.032(0.8) Typ. MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25oC ambient temperature unless otherwise specified. Single phase, half wave, 60 HZ, resistive or inductive load. For capacitive load, derate current by 20%. 0.087(2.2) 0.071(1.8) 0.040(1.0) Typ. 0.040 (1.0) Typ. Dimensions in inches and (millimeters) SMC-S MAXIMUM RATINGES ( At TA = 25oC unless otherwise noted ) RATINGS SYMBOL SCM34SLPT UNITS Maximum Recurrent Peak Reverse Voltage VRRM 40 Volts Maximum RMS Voltage VRMS 28 Volts Maximum DC Blocking Voltage VDC 40 Volts IO 3.0 Amps IFSM 100 Amps CJ 250 pF 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 15 -65 to +125 o C/W o C ELECTRICAL CHARACTERISTICS ( At TA = 25oC unless otherwise noted ) CHARACTERISTICS SYMBOL Maximum Instantaneous Forward Voltage at 3.0 A DC Maximum Average Reverse Current VF o @ TA = 25 C SCM34SLPT UNITS 0.40 Volts 0.5 mAmps 20 mAmps IR at Rated DC Blocking Voltage o @ TA = 100 C NOTES : 1. Thermal Resistance ( Junction to Lead ) : PC Board Mounted on 0.55 X 0.55" ( 14 X 14mm ) copper pad area. 2. Measured at 1.0 MHZ and applied reverse voltage of 4.0 volts. 2002-9 RATING CHARACTERISTIC CURVES ( SCM34SLPT ) 3.0 2.5 2.0 1.5 1.0 Single Half Wave 60HZ Resistive or Inductive Load 0.5 0 0 25 50 75 100 125 150 175 FIG. 2 - MAXIMUM NON-REPETIVE FORWARD SURGE CURRENT PEAK FORWARD SURGE CURRETN(A) AVERAGE FORWARD CURRENT, (A) FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE 120 8.3ms Single Half Sine-Wave (JEDEC Method) 100 80 60 40 20 0 1 2 5 10 20 50 NUMBER OF CYCLES AT 60 Hz LEAD TEMPERATURE, ( oC ) FIG. 3 - TYPICAL REVERSE CHARACTERISTICS FIG. 4 - INSTANTANEOUS FORWARD CURRENT, (A) INSTANTANEOUS FORWARD CURRENT, ( A ) 100 10 o TJ = 100 C 1.0 .10 .01 o TJ = 25 C 10 TJ =25oC 1.0 Pulse Width = 300uS 1% Duty Cycle 0.1 0 20 40 60 80 INSTANTANEOUS REVERSE VOLTAGE, (V) 100 0 .2 .4 .6 .8 1.0 1.2 INSTANTANEOUS FORWARD VOLTAGE,(V) FIG. 5 - TYPICAL JUNCTION CAPACITANCE 500 JUNCTION CAPACITANCE, ( pF ) INSTANTANEOUS REVERSE CURRENT, (mA) 100 .001 100 TJ =25oC 100 10 .1 .4 1.0 4 10 REVERSE VOLTAGE, ( V ) 40 80 1.4