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 at t l =110 c peak forward surge current, 8.3 ms single half sine-wave superimposed on rated load (jedec method) maximum instantaneous forward voltage at 2.0a 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. SMU21B thru smu27b vol t age range 50 to 600 volts current 2.0 amp surf ace mount super fast 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 * super fast recovery time for high speed switching operating and storage t emperature range t j , t stg 2.0 50 5.0 500 25 -65 +150 a a v ns pf 35 SMU21B smu22b smu23b smu24b smu25b smu26b smu27b units 50 100 150 200 300 400 600 v 50 100 150 200 300 400 600 v 35 70 105 140 210 280 420 v 0.95 1.3 1.7 c a a dimensions in inches and (millimeters) .220(5.59) .200(5.08) .185(4.70) .160(4.06) .012(0.31) .006(0.15) .083(2.11) .075(1.91) .096(2.44) .083(2.13) .050(1.27) .030(0.76) .155(3.94) .130(3.30) .008 (.203) max. do-214aa(smb) 446 2.0 amperes
rating and characteristic curves (SMU21B thru smu27b) fig.1-typical forward characteristics 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 ) fig.5-typical junction capacit ance reverse voltage,(v) j u n c t i o n c a p a c i t a n c e , ( p f ) 0.4 0.8 1.2 1.6 2.0 2.4 (+) (+) 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 .01 .05 .1 .5 1 5 10 50 100 d.u.t. fig.3- test circuit diagram and reverse recovery time characteristics 10 noninductive 50 noninductive w w fig.4-maximum non-repetitive forward surge current p e a k f o r w a a r d s u r g e c u r r e n t , ( a ) 10 0 20 30 40 50 number of cycles at 60hz 1 10 5 50 100 tj=25 c 8.3ms single half sine wave jedec method single phase half wave 60hz resistive or inductive load 0 20 40 60 80 100 120 140 160 180 200 0 70 60 50 40 30 20 10 0 0.1 1.0 .01 10 50 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 vol tage,(v) pulse width 300us 1% duty cycle .4 .6 .8 1.0 1.2 1.4 1.6 1.8 3.0 s m u 2 5 b ~ s m u 2 6 b s m u 2 7 b s m u 2 1 b ~ s m u 2 4 b tj=25 c 447 lead temperature ( c)
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