- 260 - her101s thru her108s 1.0 amp. high efficient rectifiers voltage range 50 to 1000 volts current 1.0 ampere features low forward voltage drop high current capability high reliability high surge current capab ility mechanical data cases: molded plastic a-405 epoxy: ul 94v-o rate flame retardant lead: axial leads, solderable per mil-std-202, method 208 guaranteed polarit y : color band denotes cathode end high temperature soldering guaranteed: 260 o c/10 seconds/.375?,(9.5mm) lead lengths at 5 lbs., (2.3kg) tension weight: 0.22gram a-405 dimensions in inches and (millimeters) maximum ratings and electrical characteristics rating at 25 ambient temperature unless otherwise specified. single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20% type number symbol her 101s her 102s her 103s her 104s her 105s her 106s her 107s her 108s units maximum recurrent peak reverse voltage v rrm 50 100 200 300 400 600 800 1000 v maximum rms voltage v rms 35 70 140 210 280 420 560 700 v maximum dc blocking voltage v dc 50 100 200 300 400 600 800 1000 v maximum average forward rectified current .375 (9.5mm) lead length @t a = 55 i (av) 1.0 a peak forward surge current, 8.3 ms single half sine-wave superimposed on rated load(jedec method) i fsm 30 a maximum instantaneous forward voltage @ 1.0a v f 1.0 1.3 1.7 v maximum dc reverse current @ t a =25 at rated dc blocking voltage @ t a =100 i r 5.0 100 ua ua maximum reverse recovery time ( note 1 ) trr 50 75 ns typical junction capacitance ( note 2 ) cj 20 15 pf typical thermal resistance ( note 3 ) r ja 100 / w operating temperature range t j -65 to +150 storage temperature range t stg -65 to +150 notes: 1. reverse recovery test conditions: i f =0.5a, i r =1.0a, i rr =0.25a 2. measured at 1 mhz and applied reverse voltage of 4.0 v d.c. 3. mount on cu-pad size 5mm x 5mm on pcb.
- 261 - fig.2- maximum average forward current derating fig.1- reverse recovery time characteristic and test circuit diagram average for ward current . (a) 25 50 75 100 125 150 175 1.0 2.0 ambient temperature. ( c) o 50 noninductive non inductive oscilloscope (note 1) pulse generator (note 2) dut (+) 50vdc (approx) (-) notes: 1. rise time=7ns max. input impedance= 1 megohm 22pf 2. rise time=10ns max. sourse impedance= 50 ohms (-) (+) 10 noninductive -1.0a -0.25a 0 +0.5a trr 1cm set time base for 5/ 10ns/ cm single phase half wave 60hz resistive or inductive load 0.375" (9.5mm) lead length ratings and characteristic curves (her101s thru her108s) fig.5- maximum non-repetitive forward surge current peak for ward surge current . (a) 1 2 5 10 20 100 50 10 0 15 20 30 25 35 number of cycles at 60hz 8.3ms single half sine wave jedec method fig.3- typical reverse characteristics instantaneous reverse current .( a) 0 20 40 60 80 100 120 0.1 1.0 10 100 1000 percent of rated peak reverse voltage. (%) tj=25 c 0 tj=100 c 0 fig.6- typical junction capacitance junction cap acitance.(pf) .1 .5 1 5 2 10 20 50 100 200 500 1000 10 0 20 30 40 50 60 70 reverse voltage. (v) her101s~her105s her106s~her108s fig.4- typical forward characteristics instantaneous for ward current . (a) .2 .4 .6 .8 1.0 1.2 1.4 0.001 0.01 0.1 1.0 10 forward voltage. (v) her101s~her104s her105s her106s~her108s tj=25 c 0
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