B320 thru b340 surface mount schottky barrier rectifiers reverse voltage C 20 to 40 volts forward current C 3.0 amperes features ? for surface mounted application ? metal-semiconductor junction with guard ring ? epitaxial construction ? very low forward voltage drop ? high current capability ? plastic material has ul flammability classificati on 94v-0 ? for use in low voltage, high frequency inverters, free wheeling, and polarity protection application mechanical data ? case: molded plastic ? polarity: color band denotes cathode ? weight:0.007 ounces, 0.21 grams smc all dimensions in millimeter smc dim. min. max. a c d e f g h b 6.60 7.11 6.22 5.59 2.92 3.18 0.31 0.15 7.75 8.13 0.05 0.20 2.01 2.50 0.76 1.52 c h e f g d b a maximum ratings and electrical characteristics ratings at 25 c ambient temperature unless otherwise specified. single phase, half wave, 60hz, resistive or inducti ve load. for capacitive load, derate current by 20%. characteristics symbol B320 b330 b340 unit maximum repetitive peak reverse voltage v rrm 20 30 40 v maximum rms voltage v rms 14 21 28 v maximum dc blocking voltage vdc 20 30 40 a maximum average forward rectified current @tl=100c i av 3.0 a peak forward surge 8.3ms single half sine-wave superimposed on rated load i fsm 100 a maximum forward voltage at 3.0a dc v f 0.5 v maximum dc reverse current @tj=25c at rated dc blocking voltage @ tj=100c i r 0.5 15 ma typical junction capacitance (note 1) cj 230 pf typical thermal resistance (note 2, 4) r jl 18 c/w typical thermal resistance (note 3, 4) r ja 60 c/w operating junction temperature range tj -55 to +125 c storage temperature range t stg -55 to +150 c rev.1, jul-2010, kshc07 note: (1) measured at 1.0mhz and applied reverse v oltage of 4.0v dc... (2) thermal resistance junction to lead (3) thermal resistance junction to ambient (4) unit mounted on glass epoxy substrate 1oz/ft2 7 x5 mm copper pad.
rating and characteristic curves B320 thru b340 fig.1- forward current de rating curve 0 0.5 1 1.5 2 2.5 3 3.5 0 25 50 75 100 125 lead temperature, ( ) average f orward current, (a) fig.2- maximum non-repetitive surge current 0 10 20 30 40 50 60 70 80 90 100 110 120 1 10 100 number of cycles at 60hz peak forward surge current, (a) fig.3- typical junction capacitance 10 100 1000 0.1 1 10 100 reverse voltage, voltages capacitance, (pf) fig.4- typical forward characteris tics 0.01 0.1 1 10 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 inst antaneous forward volt age, volts instantaneous forward current, (a) fig.5- typical reverse characteristics 0.001 0.01 0.1 1 10 100 0 20 40 60 80 100 120 percent of rat ed peak reverse voltage, ( %) instant aneous reverse current, (ma) fig.6- dc revers e voltag e derating curve 0 20 40 60 80 100 120 0 25 50 75 100 125 ambient temperature, ( ) percent of dc reverse voltage, (%) tj=100 tj=25 tj=25 pulse width 300us 2% duty cycle tj=25 , f=1mhz 8.3ms single half sine-wave mounted on glass-epoxy substrate with 1oz/ft 2 _7x5 mm copper pad. rth j-a in still-air =60 /w mounted on glass-epoxy substrate with 1oz/ft 2 _7x5 mm copper pad.
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