maximum ratings(each diode) rating symbol v alue unit peak reverse voltage v rm 75 vdc d.c reverse voltage MMBD2837G mmbd2838g v r 30 vdc 50 peak forward current i fm 450 madc 300 average rectified current i o 150 madc 100 thermal characteristics characteristic symbol max unit total device dissipation fr? 5 board (1) p d 225 mw t a = 25c derate above 25c 1.8 mw/c thermal resistance, junction to ambient r ja 556 c/w total device dissipation p d 300 mw alumina substrate, (2) t a = 25c derate above 25c 2.4 mw/c thermal resistance, junction to ambient r ja 417 c/w junction and storage temperature t j , t stg ?55 to +150 c electrical characteristics (t a = 25c unless otherwise noted) ( each diode ) characteristic symbol min max unit off characteristics reverse breakdown voltage(i (br) = 100 adc) v (br) 35 ? vdc 75 ? reverse voltage leakage current i r ? adc (v r = 30 vdc) ? 0.1 (v r = 50 vdc) 0.1 diode capacitance c t ? 4.0 pf (v r = 0 v, f = 1.0 mhz) forward voltage(i f = 10 madc) v f ? 1.0 vdc (i f = 50 madc) ? 1.0 (i f = 100 madc) ? 1.2 reverse recovery time (i f =i r =10madc,i r(rec) =1.0madc)(figure 1) t rr ? 4.0 ns 1. fr?5 = 1.0 x 0.75 x 0.062 in. 2. alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina. monolithic dual switching diodes feture z we declare that the material of product compliance with rohs requirements. zowie technology corporation lead free product 1 2 3 sot-23 anode anode cathode 3 1 2 MMBD2837G mmbd2838g MMBD2837G mmbd2838g MMBD2837G mmbd2838g zowie t echnology corporation rev . 0
notes: 1. a 2.0 k ? variable resistor adjusted for a forward current (i f ) of 10ma. notes: 2. input pulse is adjusted so i r(peak) is equal to 10ma. notes: 3. t p ? t rr figure 1. recovery time equivalent test circuit +10 v 2.0 k 820 ? 100 h 0.1 f dut 0.1 f 50 ? output pulse generator t r 50 ? input sampling oscilloscope t p t 10% 90% i f i r t rr t i r(rec) = 1.0 ma output pulse (i f = i r = 10 ma; measured at i r(rec) = 1.0 ma) input signal i f v r i f , forward current (ma) i r , reverse current ( a) 10 1.0 0.1 0.01 0.001 01 02 03 04 05 0 100 10 1.0 0.1 0.2 0.4 0.6 0.8 1.0 1.2 v r , reverse voltage (volts) figure 3. leakage current v f , forward voltage (volts) figure 2. forward voltage t a = ?40c t a = 85c t a = 25c t a =125c t a =150c t a =85c t a =55c t a =25c 1.0 0.9 0.8 0.7 0.6 0 2.0 4.0 6.0 8.0 v r , reverse voltage (volts) figure 4. capacitance c d , diode capacitance (pf) curves applicable to each cathode zowie technology corporation rev. 0 zowie technology corporation MMBD2837G mmbd2838g
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