high efficiency rectifier voltage range 50 to 1000 volts HER251 thru her258 current 2.5ampere e-mail: sales@cnmic.com web site: www.cnmic.com features low coat construction fast switching for high efficency. low reverse leakage high forward surge current capability high temperature soldering guaranteed: 260 /10 secods/.375 (9.5mm)lead length at 5 lbs(2.3kg) tension mechanical data case: transfer molded plastic epoxy: ul94v-o rate flame retardant polarity: color band denotes cathode end lead: plated axial lead, solderable per mil-std-202e method 208c mounting position: any weight: 0.020ounce, 0.56 grams maximum ratings and electrical characteristics ratings at 25 o c ambient temperature unless otherwise specified single phase, half wave, 60hz, resistive or inductive load for capacitive load derate current by 20% symbols her 251 her 252 her 253 her 254 her 255 her 256 her 257 her 258 units maximum repetitive peak reverse voltage v rrm 50 100 200 300 400 600 800 1000 volts maximum rms voltage v rms 35 70 140 210 280 420 560 700 volts maximum dc blocking voltage v dc 50 100 200 300 400 600 800 1000 volts maximum average forward rectified current 0.375 (9.5mm) lead length at t a = 50 i (av) 2.5 amp peak forward surge current 8.3ms single half sine wave superimposed on rated load (jedec method) i fsm 100 amps maximum instantaneous forward voltage @ 2.5a v f 1.0 1.3 1.5 1.7 volts t a = 25 5.0 maximum dc reverse current at rated dc blocking voltage t a = 125 i r 250 a maximum full load recovery current,full cycle average 0.375 (9.5mm)lead length at tl=55 ir (av) 100 a maximum reverse recovery time test conditions if=0.5a,ir=1.0a,irr=0.25a trr 50 75 ns typical thermal resistance (note 2) c j 30 35 pf typical thermal resistance(note 1) r ja 35 /w operating junction temperature range t j (-55 to +150) storage temperature range t stg (-55 to +150) notes: 1 thermal resistance from junction to ambient with .375 (9.5mm)lead length, pcb. mounted. . 2. measured at 1.0 mhz and applied reverse of 4.0 v r-3 dia. .042(1.1) .038(0.96) dia. .160(4.1) .138(3.5) .160(4.1) .138(3.5) 1.0(25.4) min. 1.0(25.4) min. dimensions in inches and (millimeters)
high efficiency rectifier voltage range 50 to 1000 volts HER251 thru her258 current 2.5ampere e-mail: sales@cnmic.com web site: www.cnmic.com characteristics fig.4-typical reverse derating curve fig.1-typical forward current 150 175 125 75 100 2.0 50 1.0 0 0 single phase inductive load half wave 60hz resistive or 25 a v e r a g e f o r w a r d c u r r e n t , ( a ) ambient temperature, ( c) 0.375"(9.5mm)lead length forward characteristics fig.3-typical instantaneous 4 6 40 forward surge current (jedec method) tj=tjmax 8.3ms single half sine-wave number of cycles at 60 hz p e a k f o r w a r d s u r g e c u r r e n t , ( a ) 0 1 50 100 150 28 102060 100 fig.2-maximum non-repetitive peak 1 cycle fig.6-test circuit diagram and reverse rexovery time characteristic note: 1.rise time =7ns max.input impedance=1megohm.22pf 2.rise time=10ns max.source impedance=50 ohms set time base for 50 /100ns /cm -1.0a 0.25a 0 +0.5a oscilloscope (note 1) pulse generatior (note 2) (-) 1 non inductive 10 noninductive 50 noninductive d . u.t (-) approx 25 vdc (+) 100 1.2 tj =25 c 1.0 0.8 0.6 0.4 1% duty cycle pulse width=300us 1.0 0.01 ( a ) ( a ) instantaneous forward voltage,(v) 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 , 1.41.61.8 10 100 80 40 60 100 10 1.0 20 0 ( u a ) percent of rated peak reverse voltage,(%) i n s t a n t a n e o u s r e v e r s e c u r r e n t , 140 120 t =25 c j 0.1 j t =125 c trr 1cm 3.0 5 0 / 1 0 0 / 2 0 0 v 3 0 0 / 4 0 0 v 6 0 0 v 8 0 0 v 1 0 0 0 v vsig=50mvp-p j u n c t i o n c a p a c i t a n c e , ( p f ) tj=25 c f=1mhz reverse voltage,(v) 1 0.1 1.0 10 fig.5-typical junction capacitance 100 h e r 2 5 6 - h e r 2 5 8 h e r 2 5 1 - h e r 2 5 5 100 10 rating and chracteristic curves HER251 thru her258
|
