dated : 23/12/2008 j semtech electronics ltd. ( subsidiary of sino-tech internati onal holdings limited, a company listed on the hong kong stock exchange, stock code: 724 ) ? lm5817 thru LM5819 surface mount schottky barrier rectifier features ? metal silicon junction, majority carrier conduction ? low power loss, high efficiency ? guard ring for overvoltage protection ? high current capability, low forward voltage drop ? high surge capability ? for use in low voltage, high frequency inverters, free wheeling, and polarity protection applications mechanical data ? case: minimelf (do-213aa), molded plastic body ? terminals: solder plated, solderable per mil-std-750, method 2026 ? polarity: color band denotes cathode end ? mounting position: any absolute maximum ratings and characteristics ratings at 25 o c ambient temperature unless otherwise specified, single phase, half wave, resistive or inductive load. for capacitive load, derate by 20% parameter symbols lm5817 lm5818 LM5819 units maximum repetitive peak reverse voltage v rrm 20 30 40 v maximum rms voltage v rms 14 21 28 v maximum dc blocking voltage v dc 20 30 40 v maximum average forward rectified current i f(av) 1 a peak forward surge current 8.3 ms single half sine wave superimposed on rated load(jedec methode) i fsm 25 a maximum instantaneous forward voltage at i f = 1 a at i f = 3 a v f 0.45 0.75 0.55 0.875 0.6 0.9 v maximum instantaneous reverse current at rated dc blocking voltage 1) t a = 25 o c t a = 100 o c i r 0.5 10 ma typical junction capacitance 2) c j 110 pf typical thermal resistance, junction to ambient 3) typical thermal resistance, junction to terminal 4) r ja r jl 75 30 o c/w operating junction temperature range t j - 55 to + 125 o c storage temperature range t stg - 55 to + 150 o c 1) pulse test: 300 s pulse width, 1% duty cycle 2) mearsured at 1 mhz and reverse voltage of 4 v 3) thermal resistance junction to ambient 0.24" x 0.24"(6 x 6 mm) copper pads to each terminals 4) thermal resistance junction to terminal 0.24" x 0.24"(6 x 6 mm) copper pads to each terminals 3.7 3.3 0.6 0.25 d1= 1.7 1.5 d2 d2 = d1 +0 -0.203 dimensions in millimeters solderable ends minimelf (do-213aa)
dated : 23/12/2008 j semtech electronics ltd. ( subsidiary of sino-tech internati onal holdings limited, a company listed on the hong kong stock exchange, stock code: 724 ) ? lm5817 thru LM5819
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