h er301 her308 thru 3.0 amp high efficiency rectifiers m a x i m u m r atings and electrical characteristics rating 25 c ambient temperature uniess otherwies specified. s ingle phase half wave, 60hz, resistive or inductive load. for capacitive load, derate current by 20%. type number m aximum recurrent peak reverse voltage m aximum rms voltage m aximum dc blocking voltage m aximum average forward rectified current .375"(9.5mm) lead length at ta=50 c features m e chanical data p eak forward surge current, 8.3 ms single half sine-wave s uperimposed on rated load (jedec method) m aximum instantaneous forward voltage at 3.0a m aximum dc reverse current ta=25 c at rated dc blocking voltage ta=100 c m aximum reverse recovery time (note 1) typical junction capacitance (note 2) 3.0 1.0 1.3 1.85 150 10 200 50 7 5 75 - 65 +150 v 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. * low forward voltage drop * high current capability * high reliability * high surge current capability * case: molded plastic * epoxy: ul 94v-0 rate flame retardant * lead: axial leads, solderable per mil-std-202, method 208 guranteed * polarity: color band denotes cathode end * mounting position: any weight: 1.10 grams * v oltage range 50 to 1000 volts current 3.0 amperes her301 her302 her303 her304 her305 her306 her307 her308 units 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 * high speed switching do-27 dimensions in inches and (millimeters) 0.945 (2 4.0 ) min. 0.945 (2 4.0 ) min. .375(9.5) .285(7.2) .052(1.3) .04 3 (1. 1 ) dia. .220(5.6) .197(5.0) dia. operating and storage temperature range t , t j s tg a a v m a m a ns pf c 68 * both normal and pb free product are available: * normal:80~95%sn,5~20%pb * pb free:99 sn above can meet rohs enviroment substance directive request
.4 .6 .8 1.0 1.2 1.4 .001 .01 .1 1.0 10 rating and characteristic curves (her301 thru her308) fig.1-typical forward characteristics fig.4-maximum non-repetitive forward surge current peak forward surge current,(a) fig.5-typical junction capacitance instantaneous forward current,(a) forward voltage,(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 fig.2-typical forward current average forward current,(a) 0.5 0 1.0 1.5 2.0 2.5 3.0 derating curve 1.6 1.8 h e r 3 0 6 ~ h e r 3 0 8 h e r 3 0 4 ~ h e r 3 0 5 h e r 3 0 1 ~ h e r 3 0 3 reverse voltage,(v) j unction capacitance,(pf) 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 single phase half wave 60hz resistive or inductive load 0.375"(9.5mm) lead length ambient temperature ( c) 0 25 50 75 100 125 150 175 69
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