maximum ratings and electrical chara cteristics rating 25 c ambient temperature uniess otherwies specified. single phase half wave, 60hz, resistive or inductive load.for capacitive load, derate current by 20%. type number maximum recurrent peak reverse voltage maximum rms voltage maximum dc blocking voltage maximum average forward rectified current peak forward surge current, 8.3 ms single half sine-wave superimposed on rated load (jedec method) maximum instantaneous forward voltage at 3.0a maximum dc reverse current t a=25 c at rated dc blocking voltage t a=100 c maximum reverse recovery time (note 1) typical junction capacitance (note 2) notes: 1. reverse recovery time test condition: if=0.5a, ir=1.0a, irr=0.25a 2. measured at 1mhz and applied reverse voltage of 4.0v d.c. SMH301C thru smh308c vol t age range current 3.0 amp surf ace mount high efficiency rectifiers mechanical da t a * case: molded plastic * epoxy: ul 94v-0 rate flame retardant * metallurgically bonded construction * polarity: color band denotes cathode end * mounting position: any fea tures * ideal for surface mount applications * easy pick and place * built-in strain relief * fast switching speed operating and storage t emperature range t j , t stg dimensions in inches and (millimeters) do-214ab(smc) .320(8.13) .305(7.75) .280(7.11) .260(6.60) .012(0.31) .006(0.15) .124(3.15) .108(2.75) .103(2.62) .079(2.00) .050(1.27) .030(0.76) .245(6.22) .220(5.59) .008 (.203) max. at t l =75 c 3.0 1.0 1.3 1.85 150 10 200 50 75 75 -65 +150 v 50 100 200 300 400 600 800 1000 50 100 200 300 400 600 800 1000 35 70 140 210 280 420 560 700 v v a a v ns pf c units smh smh smh smh smh smh smh smh 301c 302c 303c 304c 305c 306c 307c 308c a a 50 to 1000 volts 468 3.0 amperes
rating and characteristic curves (SMH301C thru smh308c) .4 .6 .8 1.0 1.2 1.4 .001 .01 .1 1.0 10 fig.1-typical forward characteristics fig.4-maximum non-repetitive forward surge current p e a k f o r w a r d s u r g e c u r r e n t , ( a ) fig.5-typical junction capacit ance i n s t a n t a n e o u s f o r w a r d c u r r e n t , ( a ) forward volt age,(v) pulse width 300us 1% duty cycle 0 30 60 120 150 90 (+) (+) 25vdc (approx.) ( ) ( ) pulse generator (note 2) oscilliscope (note 1) 1 non-inductive w notes: 1. rise time= 7ns max., input impedance= 1 megohm.22pf. 2. rise time= 10ns max., source impedance= 50 ohms. +0.5a 0 -0.25a -1.0a | || | | | | | 1cm set time base for 50 / 10ns / cm trr d.u.t. fig.3- test circuit diagram and reverse recovery time characteristics 10 noninductive 50 noninductive w w tj=25 c 1.6 1.8 sm h 30 6c ~s m h 30 8c s m h 3 0 4 c ~ s m h 3 0 5 c s m h 3 0 1 c ~ s m h 3 0 3 c reverse voltage,(v) j u n c t i o n c a p a c i t a n c e , ( p f ) 175 150 125 100 75 50 25 0 .01 .05 .1 .5 1 5 10 50 100 number of cycles at 60hz 1 10 5 50 100 tj=25 c 8.3ms single half sine wave jedec method fig.2-typical forward current dera ting curve a v e r a g e f o r w a r d c u r r e n t , ( a ) 0.5 1.0 1.5 2.0 2.5 3.0 single phase half wave 60hz resistive or inductive load 0 20 40 60 80 100 120 140 160 180 200 0 lead temperature ( c) 469
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