MR850 thru mr8510 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 3a fast recovery plastic rectifier MR850 thru mr8510 features z high surge current capability z plastic material carries u/l recognition 94-0 z high current operation 3 amperes at ta=55c z fast switching for high efficiency z high temperature soldering guaranteed: 250 c /10s /0.375? (9.5mm) lead length/5 lbs., (2.3 kg) tension mechanical data z case: molded plastic, do201ad, dimensions in inches and (millimeters z terminals: axial leads, solderable per mil-std- 202,method 208 z polarity: color band denotes cathode z mounting position: any z weight: 1.2 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 MR850 mr851 mr852 mr854 mr856 mr858 mr8510 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 0.375?(9.5mm) lead length at ta=55 c i o 3.0 a peak forward surge current, 8.3ms single half sine-wave superimposed on rated load i fsm 100 a typical junction capacitance (note 1) c j 28 pf typical thermal resistance (note 2) r ja 20 /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 MR850 mr851 mr852 mr854 mr856 mr858 mr8510 units maximum forward voltage at i o dc v f 1.25 1.50 1.75 v maximum reverse current at 25 c i r 10 a maximum reverse current at 100 c 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 .375(9.5) .335(8.5) 1.0(25.4) min .220(5.6) .197(5.0) 1.0(25.4) min .052(1.3) .048(1.2)
MR850 thru mr8510 page: 2 200 100 50 10 ratings and characteristic curve MR850 thru mr8510 +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 ) 3.0 2.0 1.0 0 single phase half wave 60hz resistive or inductive load fig. 3-maximum forward surge number of cycles peak forward surge current amperes 10 1.0 0.1 0.01 instantaneous reverse current, microamperes fig. 4-typical junction capacitance tj=50 o c tj=100 o c tj=25 o c 0 20 40 60 80 100 120 140 percent of rated peak reverse voltage, % 100 10 1. 0 0.1 .01 fig. 5-typical instantaneous forward characteristics instantaneous forward current amperes 8. 3ms single half sine-wave (jedec method) 1 10 100 number of cycles at 60hz 0.4 0.6 .8 1.0 1.2 1.4 1.6 1.8 instantaneous forward voltage, volts tj=25 o c pulse width =300us 1% duty cycle
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