features guard ring for transient protection low power loss,high efficiency high current capability,low vf high surge capacity mechanical dat a case: to-220ac molded plastic polarity: as marked on the body mounting position :any dimensions in inches and (millimeters) maximum ratings and electrical characteristics rating at 25 ambient temperature unless otherwise specified. single phase, half wave ,60hz, resistive or inductive load. for capacitive load, derate current by 20% maximum recurrent peak reverse voltage v rrm v maximum rms voltage v rms v maximum dc blocking voltage v dc v maximum average forward rectified current ( see fig.1) @t c =95 peak forward surge current 8.3ms single half sine-wave super imposed on rated load (jedec method) peak forward voltage at 20a dc(note1) v f v maximum dc reverse current @t j =25 at rated dc bolcking voltage @t j =125 typical thermal resistance(note2) r jc /w operating temperature range t j storage temperature range t stg 3.the typical data above is for reference only( ?). rev. 7, 16-mar-2017 2.thermal resistance junction to case(without heatsink). 1.5 -55 to +200 -55 to +200 notes:1.300us pulse width,2% dudy cycle. i r 0.5 ma 50 i fsm 300 a 0.62 i (av) 20 a 40 45 unit sda2040a SDA2045A 40 28 45 31.5 for use in low voltage,high frequency inverters,free wheeling,and polarity protection applications characteristics symbol metal of silicon rectifier , majority carrier conduction plastic package has ul flammability classification 94v-0 sda2040a thru SDA2045A photovoltaic solar cell protection schottky rectifier reverse voltage - 40 to 45 volts forward current - 20 amperes to-220ac .012(0.3) .024(0.6) .055(1.4) .047(1.2) .531(13.5) .583(14.8) .610(15.5) .583(14.8) .230(5.8) .270(6.9) .091(2.3) .102(2.6) .043(1.1) .032(0.8) .057(1.45) .045(1.14) .04 max (1.0) .153(3.9) .146(3.7) .374(9.5) .413(10.5) .177 (4.5) max .135(3.44) .103 (2.62) .173(4.4) .189(4.8) max (3.5) .138
rating and charactertic curves sda2040a thru SDA2045A the cruve graph is for reference only, can't be the basis for judgment( ?)! rev. 7, 16-mar-2017 fig. 2 ? maximum non-repetitive surge current number of cycles at 60hz peak forward surge current, amperes pulse width 8.3 ms single half-sine-wave (jedec method) 1 150 50 0 300 10 25 20 50 100 250 200 100 instantaneous reverse current,(ma) percent of rated peak reverse voltage,(%) fig.3-typical reverse characteristics 40 60 80 100 120 140 20 0.1 1.0 1000 10 0.01 0 100 t j =75 t j =100 t j =25 0 fig. 1 ? forward current derating curve case temperature ( ) a verage forward current amperes 5 25 15 20 50 75 100 125 150 175 10 30 25 200 35 40 single phase half wave 60hz resistive or inductive load instantaneous forward voltage,volts fig.4-typical forward characteristics instantaneous forward current, (a) 0.1 0.3 0.5 0.7 1.1 1.51.3 0.9 1.7 100 10 0.1 1.0 t j = 25c pulse width 300us 2% duty cycle
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