MR850 thru mr856 soft recoveru, fast switching plastic rectifier voltage - 50 to 600 volts current - 3.0 amperes features l high surge current capability l plastic package has underwriters laboratory flammability classification 94v - o l void - free mo lded plastic package l 3.0 ampere operation at t a =50 with no thermal runaway l exceeds environmental standards of mil - s - 19500/228 l fast switching for high efficiency mechanical data case: jedec do - 201ad molded plastic terminals: plated axial leads, solderable per mil - std - 750, method 2026 polarity: color band denotes end mounting position: any weight: 0.04 ounce, 1.1 gram maximum ratings and electrical characteristics ratings at 25 ambient temperature unless otherwise specified. resistive or inductive load. symbols MR850 mr851 mr852 mr854 mr856 u nits maximum recurrent peak reverse voltage v rrm 50 100 200 400 600 volts maximum rms voltage v rms 35 70 140 280 480 volts maximum dc blocking voltage v dc 50 100 200 400 600 volts maximum average forward rectified current .375"(9.5mm) lead length at t a =50 i (av) 3.0 amps peak forward surge current 10ms single half sine - wave superimposed on rated load at t a =25 i fsm 100.0 amps maximum repetitive peak forward surge(note1) i frm 10.0 amps maximum instantaneous forward voltage at 3.0a v f 1.25 volts maximum dc reverse current t a =25 at rated dc blocking voltage t a =100 i r 10.0 500.0 a a maximum reverse recovery time(note 3) t j =25 t rr 150 ns typical junction capacitance (note 2) c j 60 p f typical thermal resistance (note 4) r ja 15.0 /w operating ju nction temperature range t j - 50 to +125 storage temperature range t stg - 50 to +150 notes: 1. repetitive peak forward surge current at f<15khz 2. measured at 1 mhz and applied reverse voltage of 4.0 volts 3. reverse recovery test conditions: i f =0.5a, i r =1.0a, i rr =0.25a 4. thermal resistance from junction to ambient at 0.375"(9.5mm) lead length with both leads to heat sink do - 201ad
rating and characteristic curves MR850 thru mr856 fig. 1 - forward current derating curve fig. 2 - maximum non - re petitive peak forward surge current fig. 3 - typical instantaneous forward fig. 4 - typical reverse characteristics characteristics fig. 5 - typical junction capacitance
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