dated : 01/12/2005 h semtech electronics ltd. ( subsidiary of sino-tech internati onal holdings limited, a company listed on the hong kong stock exchange, stock code: 724 ) ? DB151 thru db157 single-phase glass passivated silicon bridge rectifier reverse voltage ? 50 to 1000 volts forward current ? 1.5 ampere features ? high surge overload rating of 50 amperes peak ? ideal for printed circuit board ? low forward voltage drop ? glass passivated chip junction mechanical data ? case molded plastic, db ? mounting position: any maximum ratings and electrical characteristics ratings at 25 o c ambient temperature unless otherwise specifi ed. single phase, half wave, 60hz, resistive or inductive load. for capacitive load, derate current by 20%. parameter symbols DB151 db152 db153 db154 db155 db156 db157 units maximum recurrent peak reverse voltage v rrm 50 100 200 400 600 800 1000 v maximum rms voltage v rms 35 70 140 280 420 560 700 v maximum dc blocking voltage v dc 50 100 200 400 600 800 1000 v maximum average forward rectified current at t a = 40 o c 2) i (av) 1.5 a peak forward surge current 8.3 ms single half- sine-wave superimposed on rated load (jedec method) i fsm 50 a maximum forward voltage at 1.5a dc and 25 o c v f 1.1 v @t a = 25 o c 5 maximum reverse current at rated dc blocking voltage @t a =125 o c i r 500 a typical junction capacitance 1) c j 25 pf typical thermal resistance 2) r ja 40 o c/w typical thermal resistance 2) r jl 15 o c/w operating and storage temperature range t j ,t stg -55 to +150 o c 1) measured at 1 mhz and applied reverse voltage of 4 vdc. 2) thermal resistance from junction to ambient and j unction to lead mounted on p.c.b. with 0.5 x 0.5" (13x13mm) copper pads.
dated : 01/12/2005 h semtech electronics ltd. ( subsidiary of sino-tech internati onal holdings limited, a company listed on the hong kong stock exchange, stock code: 724 ) ? DB151 thru db157
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