surface mount glass passivated voltage range 50 to 200 volts current 3.0 amperes rectron semiconductor technical specification features maximum ratings and electrical characteristics ratings at 25 o c ambient temperature unless otherwise specified. single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20%. electrical characteristics (at t a = 25 o c unless otherwise noted) UFM301 thru ufm304 maximum ra tings (at t a = 25 o c unless otherwise noted) super fast silicon rectifier notes : 1. t est conditions: i f =0.5a, i r =-1.0a, i rr =-0.25a. 2. measured at 1 mh z and applied reverse voltage of 4.0 volts. dimensions in inches and (millimeters) 2002-4 ratings maximum recurrent peak reverse voltage maximum rms volts maximum dc blocking voltage maximum average forward current at t a = 55 o c peak forward surge current i fm (surge): 8.3 ms single half sine-wave superimposed on rated load (jedec method) typical junction capacitance (note 2) operating and storage temperature range symbol v rrm v dc i o i fsm c j t j , t stg v rms volts volts volts amps 3.0 100 45 -55 to + 150 amps pf 0 c units UFM301 ufm304 ufm302 ufm303 50 200 100 150 35 140 70 105 50 200 100 150 at rated dc blocking voltage characteristics maximum reverse recovery time (note 1) v f symbol i r trr units 0.9 10 uamps nsec maximum dc reverse current maximum forward voltage at 3.0a dc volts @t a = 25 o c @t a =100 o c UFM301 ufm304 ufm302 ufm303 500 20 do-214ab 0.006 ( 0.152 ) 0.012 ( 0.305 ) 0.008 ( 0.203 ) 0.004 ( 0.102 ) 0.320 ( 8.13 ) 0.305 ( 7.75 ) 0.030 ( 0.76 ) 0.060 ( 1.52 ) 0.079 ( 2.06 ) 0.103 ( 2.62 ) 0.260 ( 6.60 ) 0.280 ( 7.11 ) 0.220 ( 5.59 ) 0.245 ( 6.22 ) 0.125 ( 3.17 ) 0.115 ( 2.92 ) mechanical data * glass passivated device * for surface mounted applications * ultrafast recovery times for high efficiency * low forward voltage, low power loss * low leakage current * epoxy : device has ul flammability classification 94v-0 * metallurgically bonded construction * mounting position: any * weight: 0.24 grams
rectron rating and characteristic curves ( UFM301 thru ufm304 ) fig. 6 - typical junction capacitance junction capacitance, (pf) reverse voltage, ( v ) 200 100 60 40 20 10 6 4 2 1 .1 .2 .4 1.0 2 4 10 20 40 100 t j = 25 fig. 1 - test circuit diagram and reverse recovery time characteristic 50 noninductive 10 noninductive d.u.t 25 vdc (approx) ( - ) ( - ) ( + ) ( + ) 1 non- inductive oscilloscope (note 1) pulse generator (note 2) notes: 1 rise time = 7ns max. input impedance = 1 megohm. 22pf. 2. rise time = 10ns max. source impedance = 50 ohms. trr +0.5a 0 -0.25a -1.0a 1cm set time base for 10 ns/cm fig. 2 - typical forward current derating curve average forward curent, (a) ambient temperature ( ) 6.0 5.0 4.0 2.0 3.0 1.0 0 25 50 75 100 125 150 175 0 single phase half wave 60hz resistive or inductive load fig. 3 - typical reverse characteristics instantaneous reverse current, (ua) percent of rated peak reverse voltage, (%) t j = 25 t j = 100 t j = 150 100 10 1.0 .1 .01 40 0 20 60 80 100 120 140 fig. 5 - maximum non-repetitive forward surge current peak forward surge current, (a) number of cycles at 60hz 175 150 125 100 75 50 25 0 1 2 5 10 20 50 100 8.3ms single half sine-wave ( jedec method ) instantaneous forward voltage, (v) fig. 4 - typical instantaneous instantaneous forward current, (a) 0 .2 .4 .6 .8 1.0 1.2 1.4 .01 .1 1 10 100 forward characteristics pulse width = 300us 1% duty cycle t j = 25
mounting pad layout rectron dimensions in inches and (millimeters) 0.121 min. (3.07 min.) 0.060 min. (1.52 min.) 0.320 ref 0.185 max. (4.69 max.)
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