MR820 thru mr826 page: 1 frontier electronics corp. 667 e. cochran street, simi valley, ca 93065 tel: (805) 522-9998 fax: (805) 522-9989 e-mail: frontiersales@frontierusa.com web: http://www.frontierusa.com 5a fast recovery plastic rectifier MR820 thru mr826 features z the plastic package carries underwriters laboratory flammability classification 94v-0 z high surge current capability z high current operation z fast switching for high efficiency z diffused junction z completely insulated case z uniform molded body z high temperature soldering guaranteed: 265c/10s /0.375? (9.5mm) lead length/5 lbs, (2.3 kg) tension mechanical data z case: molded plastic, p6, dime nsions in inches and (millimeters) z terminals: plated axial leads, solderable per mil-std-202, method 208 z polarity: color band denotes cathode z mounting position: any z weight: 2.1 grams maximum ratings and electrical characteristics ratings at 25 c ambient temperature unless otherwise specified single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20% ratings symbol MR820 mr821 mr822 mr824 mr826 units maximum recurrent peak reverse voltage v rrm 50 100 200 400 600 v maximum rms voltage v rms 35 70 140 280 420 v maximum dc blocking voltage v dc 50 100 200 400 600 v maximum average forward rectified current 0.375? (9.5mm) lead length at ta=55 c i o 5.0 a peak forward surge current, 8.3ms single half sine-wave superimposed on rated load i fsm 300 a typical junction capacitance (note 1) c j 300 pf typical thermal resistance (note 2) r ja 10 /w storage temperature range t stg - 55 to + 150 operating temperature range t op - 55 to + 150 electrical characteristics (a t t a =25 c unless otherwise noted) characteristics symbol MR820 mr821 mr822 mr824 mr826 units maximum forward voltage at i o dc v f 1.1 v maximum reverse current at 25 i r 10 a maximum reverse current at 100 i r 100 a maximum reverse recovery time (note 3) t rr 120 ns note: 1. measured at 1 mhz and applied reverse voltage 0f 4.0 volts 2. both leads attached to heat sink 63.5x63.5x1t(mm) copper plate at lead length 5mm 3. reverse recovery test conditions: i f =0.5a, i r =1.0a, i rr =0.25a .360(9.1) .340 ( 8.6 ) .052(1.3) .048(1.2) .360(9.1) .340(8.6) 1.0(25.4) min 1.0(25.4) min
MR820 thru mr826 page: 2 6.0 5. 0 4.0 2.0 0 300 200 100 ratings and characteristic curve MR820 thru mr826 +0.5a 0 -0.25a -1.0a trr 1cm set time base for 10/20 ns/cm fig. 1-test circuit diagram and reverse recovery time characteristic pulse generator ( note 2 ) (+) 25 v dc (approx) (-) d.u.t. 1 non inductive oscilloscope ( note 1 ) 50 no inductive 10 no inductive (-) (+) note: 1. rise time=7ns max. input impedance=1 mohms 22pf 2. rise time =10ns max. source impedance=50 ohms t a -ambient temperature ( o c) fig. 2-maximum current derating curve 0 20 40 60 80 100 120 140 160 180 200 io-average rectified current ( a ) single phase half wave 60hz resistive or inductive load fig. 3-maximum forward surge number of cycles peak forward surge current amperes 8.3 ms single half sine wave (jedec method) 1 10 50 100 no of cycles at 60 hz capacitance , pf 10 1 0.1 0.01 0 20 40 60 80 100 120 140 ig. 4-typical reverse characteristics percent of rated peak reverse voltage , % tj=100 o c t j =50 o c tj=25 o c 100 10 1 0.1 fig. 5-typical instantaneous forward characteristics 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 instantaneous forward voltage, volts instantaneous forward current amperes tj=25 o c pulse width =300us 1% duty cycle
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