SK34B

BL FEATURES GALAXY ELECTRICAL SK32B- - -SK3A0B REVERSE VOLTAGE: 20 - 100 V FORWARD CURRENT: 3.0 A SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS SMB Schottky barrier rectifier Guardring protection Low forward voltage Reverse energy tested High current capability Extremely low thermal resistance MECHANICAL DATA Case: SMB molded plastic body 1111 Polarity: Color band denotes cathode end Mounting position: ANY Weight: 0.003 ounces, 0.093 gram inch(mm) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25oC ambient temperature unless otherwise specified SK32B SK33B SK34B SK35B SK36B SK38B SK39BSK3A0B UNITS Device marking code Maximum repetitive peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forward rectified current at TL=90 Peak forward surge current 8.3ms single halfsine-wave Maximum instantaneous forward voltage at IFM=3.0A (NOTE1) Maximum DC reverse current at rated DC blocking voltage Maximum thermal resistance Operating temperature range Storage temperature range TJ=25 TJ=100 SK32B SK33B SK34B SK35B SK36B SK38B SK39BSK3A0B VRRM VRWS VDC IF(AV) IFSM VF IR R JL 20 14 20 30 21 30 40 28 40 50 35 50 3.0 100.0 60 42 60 80 56 80 90 63 90 100 70 100 V V V A A 0.50 0.70 0.5 20.0 17.0 - 55 ---- +125 - 55 ---- +150 0.85 V mA o C/W o o TJ TSTG C C NOTE: 1.Pulse test: Pulse width 300us,duty cycle 1 % www.galaxycn.com Document Number 0281008 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES SK32B- - -SK3A0B FIG.1 -- FORWARD DERATING CURVE AVERAGE FORWARD RECTIFIED CURRENT PEAK FORWARD SURGE CURRENT AMPERES FIG.2 -- PEAK FORWARD SURGE CURRENT 80 70 60 50 40 30 20 10 4 3 TJ=TJMAX 8.3ms Single Half Sine-Wave AMPERES 2 1 Resistive or Inductive Load 0.375"(9.5mm)Lead Length 0 0 25 50 75 100 125 150 175 1 10 100 LEAD TEMPERATURE, NUMBER OF CYCLES AT 60Hz FIG.3 -- TYPICAL INSTANTANEOUS FORWARD XXXXXXXXX----CHARACTERISTICS INSTANTANEOUS FORWARD CURRENT FIG.4 -- TYPICAL JUNCTION CAPACITANCE 20 SK32B-SK34B SK38B-SK3A0B 1000 CAPACITANCE, pF 10 T J =25 ℃ f=1.0MHz Vsig=50mVp-p 100 AMPERES 1 SK35B-SK36B T J= 2 5 P u ls e w id t h = 3 0 0 1 % D u t y C y c le s .1 .1 .3 .5 .7 .9 1 .1 1 .3 1 .5 1 .7 1 .9 2 .1 10 0.1 1 10 100 INSTANTANEOUS FORWARD VOLTAGE, VOLTS REVERSE VOLTAGE,VOLTS www.galaxycn.com Document Number 0281008 BLGALAXY ELECTRICAL 2.