SS34LB R LOW VF SCHOTTKY BARRIER RECTIFIER Reverse Voltage - 40 Volts Forward Current - 3.0Amperes S E M I C O N D U C T O R SMB(DO-214AA) FEATURES Plastic package has Underwriters Laboratory Flammability Classification 94V-0 Metal silicon junction ,majority carrier conduction Guard ring for overvoltage protection Pb Low power loss ,high efficiency High current capability ,low forward voltage drop COMPLIANT High surge capability High temperature soldering guaranteed:260℃/10 seconds at terminals Component in accordance to RoHS 2011/65/EU and WEEE 2012/19/EU 0.155(3.94) 0.130(3.30) RoHS 0.086(2.2) 0.075(1.91) 0.187(4.76) 0.160(4.06) JF B 4L SS3 0.012(0.305) 0.006(0.152) 0.096(2.44) 0.083(2.13) MECHANICAL DATA 0.008(0.203) MAX 0.060(1.52) 0.030(0.76) Case: JEDEC SMB(DO-214AA) molded plastic body 0.220(5.59) 0.200(5.08) Terminals: Solder Plated, solderable per MIL-STD-750,method 2026 Polarity: Color band denotes cathode end Weight: 0.003ounce, 0.093 gram Suggested PAD Layout 0.065(1.65)MIN 0.080(2.03)MAX TYPICAL APPLICATIONS For use in low voltage ,high frequency inverters ,DC/DC converters, free wheeling ,and polarity protection applications 0.060(1.52)MIN 0.220(5.59)REF Dimensions in inches and (millimetrers) MAXIMUM RATINGS (Ratings at 25℃ ambient temperature unless otherwise specified ) Symbol SS34LB Unit Maximum repetitive peak reverse voltage VRRM 40 V Maximum average forward rectified current IF(AV) 3.0 A Peak forward surge current 8.3ms single half sine-wave superimposed on rated load (JEDEC method at rated TL) IFSM 80 A TJ -55 to+150 ℃ Tstg -55 to+150 ℃ Parameter Operating junction temperature range Storage temperature range JINAN JINGHENG ELECTRONICS CO., LTD. 3-1 HTTP://WWW.JINGHENGGROUP.COM RATINGS AND CHARACTERISTIC OF SS34LB ELECTRICAL CHARACTERISTCS（TA=25℃ Unless otherwise noted) Test Conditions Parameter Symbol T A =25℃ Instaneous forward voltage T A =100℃ I F =3.0A V F 1) T A =125℃ 0.45 0.47 0.39 0.41 0.37 0.39 60 200 5 10 15 30 T A =25℃ V R =40V Reverse current T A =100℃ IR MAX. TYP. 2) Unit V μA mA T A =125℃ 4V,1MHz Typical junction capacitance pF 240 CJ Notes: 1.Pulse test: 300 μs pulse width,1% duty cycle 2.Pulse test: pulse width≤40ms THERMAL CHARACTERISTCS（TA=25℃ Unless otherwise noted) Parameter Symbol Typical thermal resistance 3) SS34LB R JA 70.0 R JL 25.0 Unit ℃/W 3. Unit mounted on PC board with 5.0mm×5.0 mm (0.013 mm thick) copper pads as heat sink AVAILABALE PACK INFORMATION Product code SS34LB-SMB Quantity Pack Reel Size (mm) (pcs/reel) T/R Φ300 3000 JINAN JINGHENG ELECTRONICS CO., LTD. 3-2 Box Size L×W×H (mm) Quantity (reel/box) Carton Size L×W×H (mm) Quantity (box/carton) 340×340×40 2 370×370×370 8 HTTP://WWW.JINGHENGGROUP.COM RATINGS AND CHARACTERISTIC OF SS34LB FIG.2-MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT FIG.1-FORWARD CURRENT DERATING CURVE 120 4.0 Resistive or Inductive Load PEAK FORWARD SURGE CURRENT(AMPERES) AVERAGE FORWARD CURRENT AMPERES 5.0 3.0 2.0 1.0 0 0 20 40 60 80 100 120 TJ=TJMAX 8.3ms SINGLE HALF SINE-WAVE (JEDEC Method) 100 80 60 40 20 140 150 0 1 LEAD TEMPERATURE (℃) 10 100 NUMBER OF CYCLES AT 60Hz FIG.3-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS FIG.4-TYPICAL REVERSE CHARACTERISTICS 200 INSTANTANEOUS REVERSE CURRENT (mA) INSTANTANEOUS FORWARD CURRENT( AMPERES) 50 TJ=100℃ 10 PULSE WIDTH=300 S 1% DUTY CYCLE 1 TJ=125℃ TJ=25℃ 0.1 100 TJ=125℃ 10 TJ=100℃ 1 0.1 TJ=25℃ 0.01 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.01 0 INSTANTANEOUS FORWARD VOLTAGE (VOLTS) 20 40 60 80 100 PERCENT OF RATED PEAK REVERSE VOLTAGE% FIG.5-TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE(pF) 4000 1000 100 0.1 1 10 100 REVERSE VOLTAGE. VOLTS JINAN JINGHENG ELECTRONICS CO., LTD. 3-3 HTTP://WWW.JINGHENGGROUP.COM