50v-600v 3.0a mr850 thru mr856 mechanical data web site: www.taychipst.com 1 of 2 features e-mail: sales@taychipst.com maximum ratings and electrical characteristics 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 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 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 fast recovery rectifier diodes
ratings and characteristic curves mr850 thru mr856 e-mail: sales@taychipst.com web site: www.taychipst.com 2 of 2 50v-600v 3.0a mr850 thru mr856 fast recovery rectifier diodes fig.1 - reverse recovery time characteristic and test circuit diagram + notes : 1. rise time = 7 ns max., input impedance = 1 megaohm, 22 pf. 2. rise time = 10 ns max., source impedance = 50 ohms. 3. all resistors = non-inductive types. fig.2 - derating curve for output fig.3 - maximum non-repetitive peak rectified current forward surge current 0 25 50 75 100 125 150 175 1 2 4 6 10 20 40 60 100 ambient temperature, ( c) number of cycles at 60hz fig.4 - typical forward characteristics fig.5 - typical reverse characteristics 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 60hz resistive or inductive load 2.4 1.8 1.2 0.6 3.0 100 10 1.0 80 0 100 0 60 40 20 0.1 10 80 0.01 0.01 1.0 0.1 100 140 0 20 40 60 120 percent of rated reverse voltage, (%) peak forward surge current, amperes average forward output current, amperes forward current, amperes reverse current, microamperes t j = 25 c t j = 100 c t j = 25 c pulse width = 300 m s 2% duty cycle 8.3 ms single half sine wave ta = 50 c se t time base for 50 ns/cm 50 vdc (approx) oscilloscope ( note 1 ) 1 w 50 w 10 w d.u.t. pulse generator ( note 2 ) for ward voltage, volts trr + 0.5 0 - 0.25 - 1.0 a 1
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