features low cost diffused junction low leakage low forward voltage drop high current capability and s im ilar s olvents mechanical data case:jedec do-15,molded plastic terminals: axial lead ,solderable per mil- std-202,method 208 polarity: color band denotes cathode weight: 0.014 ounces,0.39 grams mounting position: any maximum ratings and electrical characteristics ratings at 25 ambient temperature unless otherwise specified. single phase,half wave,60 hz,resistive or inductive load. for capacitive load,derate by 20%. units maximum recurrent peak reverse voltage v rrm v max imum rms v olta ge v rms v maximum dc blocking voltage v dc v maximum average f orw ard rectif ied current 9.5mm lead length, @t a =75 peak f orw ard surge current 8.3ms single half -sine-w ave superimposed on rated load @t j =125 maximum instantaneous f orw ard voltage @ 1.0 a v f v maximum reverse current @t a =25 at rated dc blocking voltage @t a =100 maximum reverse recovery time (note1) t rr ns typical junction capacitance (note2) c j pf typical thermal resistance (note3) r ja k/w operating junction temperature range t j storage temperature range t stg note:1. measured with i f =0.5a, i r =1a, i rr =0.25a. byv37- - - BYV38 galaxy electrical do - 15 800 1000 560 700 800 1000 byv 37 easily cleaned with freon,alcohol,isopropanol a i fsm 3. thermal resistance from junction to ambient,i=10mm,t l =constant. a 2. measured at 1.0mhz and applied rev erse v oltage of 4.0v dc. - 55---- +150 - 55---- +150 45 i r 300 50.0 5.0 100 1.1 15 voltage range: 800 --- 1000 v current: 2.0 a byv 38 2.0 a fast recovery rectifier i f(av) the plastic material carries u/l recognition 94v-0 www.galaxycn.com bl bl galaxy electrical document number 0261074 1.
0.6 0.7 0.8 0.9 1.0 1.1 0.01 0.02 0.06 0.04 0.1 0.2 0.4 1.0 2 4 10 100 t j =25 pulse width=300 ratings and characteristic curves fi g. 2 --typi cal forward characteri sti c number of cycles at 60hz reverse voltage,volts byv37- - - BYV38 instantaneous forward current fig.3-- forward derating current instantaneous forward voltage,volts ambient temperature, 1 .1 1.0 2 4 6 10 40 20 100 60 200 4 10 20 40 100 .2 .4 2 t j =25 f=1mhz 10 20 30 50 10 0 50 5 0.1 40 8.3ms single half sine-wave
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