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