www.galaxycn.com bl document number 0281040 1. bl galaxy electrical features metal-semiconductor junction with guard ring epitaxial construction low forward voltage drop,low switching losses high surge capability mechanical data case:jedec do--214ac,molded plastic terminals: solderable per mil- std-202,method 208 polari ty: color band denotes cathode weight: 0.002 ounces, 0.064 gram mounting position: any 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 ma x imu m rms v o lt a g e v rms v maximum dc blocking voltage v dc v maximum average f orw ard rectif ied current @t l =90 peak forw ard surge current 8.3ms single half-sine-w ave superimposed on rated load maximum reverse current @t a =25 at rated dc blocking voltage @t a =100 typical junction capacitance (note2) c j pf typical thermal resistance (note3) r ja /w operating junction temperature range t j storage temperature range t stg galaxy electrical S5817- - -s5819 a for use in low voltage,high frequency inverters free xxxx wheeling,and polarity protection applications i f(av) schottky barrier rectifier voltage range: 20 --- 40 v current: 1.0 a sma(do-214ac) the plastic material carries u/l recognition 94v-0 maximum ratings and electrical characteristics S5817 3.thermal resistance junction to ambient ma i r i fsm note: 1. pulse test : 300 s pulse width,1% duty cy cle. 2. measured at 1.0mh z and applied rev erse v oltage of 4.0v dc. a 50 - 55 ---- + 125 - 55 ---- + 150 110 1.0 10 1.0 40 maximum instantaneous f orw ard voltage @ 1.0a z (note 1) @ 3.0a v f 14 20 v s5818 s5819 40 28 30 21 30 25 20 0.90 0.60 0.45 0.75 0.55 0.875 s17 s18 s19 device marking code
www.galaxycn.com document number 0281040 2. amperes amperes capacitance, pf amperes instantaneous forward current S5817 - - - s5819 lead temperature, number of cycles at 60hz instantaneous forward voltage, volts fig.1 -- forward derating curve fig.2 -- peak forward surge current ratings and characteristic curves average forward rectified current fig.3 -- typical instantaneous forward x - characteristics peak forward surge current reverse voltage,volts fig.4 -- typical junction capacitance t j =25 ?? f=1.0mhz vsig=50mvp-p 10 100 400 0.1 1 10 100 0 25 11 01 0 0 25 30 20 10 5 t j =t j max 8.3ms single half sine-wave 0.5 1.0 0 25 50 75 100 125 150 0 0.75 0.25 resistive or inductive load 0.375"(9.5mm)lead length bl galaxy electrical .1 .3 .5 .7 .9 1.1 1.3 1.5 1.7 1.9 2.1 .1 1 10 20 S5817 s5819 s5818 t j =25 pulse width=300 s 1% duty cycle
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