2.0 amp super fast rectifier features * ideal for surface mounted applications * low leakage curren t * metallurgically bonded construction * mechanical data * case: do-214ac /sma molded plastic * epoxy: ul 94v-o rate flame retardant * lead: mil-std-202e method 208c guaranteed * mounting position: any * weight: 0.066 gram ratings at 25 ambient temperature unless otherwise specified. single phase half wave, 60hz, resistive of inductive load. for capacitive load, derate current by 20% ratings symbol EFM201A efm202a efm203a efm204a efm205a efm206a efm208a unit marking code 2e1 2e2 2e3 2e4 2e5 2e6 2e8 maximum recurrent peak reverse voltage v rrm 50 100 150 200 300 400 600 volts maximum rms voltage v rms 35 70 105 140 210 280 420 volts maximum dc blocking voltage v dc 50 100 150 200 300 400 600 volts maximum average forward curren t at t a = 55 peak forward surge current 8.3 ms single half sine-wave superimposed on rated load (jedec method) typical thermal resistance r ja /w typical junction capacitance (note 2) c j p f operating temperature range t j storage temperature rang e t s t g symbol EFM201A efm202a efm203a efm204a efm205a efm206a efm208a unit maximum forward voltage at 2.0a dc(note 3) v f 1.75 volts maximum average reverse current at @ta=25 rated dc blocking voltage @ta=100 maximum reverse recovery time (note 1) tr r ns notes :1. test conditions: if = 0.5a, ir = -1.0a, irr = -0.25a 2. measured at 1 mhz and applied reverse voltage of 4.0 volts. 2012.10 0.95 1.25 amps 5.0 150 willas electronic corp. 35 do-214ac / sma package efm208a 30 20 2.0 -65 to +175 50 85 -55 to +175 i r maximum ratings and electrical characteristics EFM201A willas characteristics amps amps i o i fsm thru rohs product for packing code suffix "g" halogen free product for packing code suffix "h" . . .181(4.60) .160(4.06) .110(2.79) .086(2.18) .067(1.70) .049(1.23) .208(5.28) .188(4.80) .091(2.31) .067(1.70) .012(.305) .006(.150) .059(1.51) .030(0.75) .008 (.203) max. dimensions in inches and (millimeters)
2.0 amp super fast rectifier 2012.10 willas electronic corp. willas EFM201A thru efm208a fig. 1 - test circuit diagram and reverse recovery time characteristic 50 noninductive 10 non-inductive 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. 22 pf. 2. rise time = 10ns max. source impedance = 50 ohms. trr +0.5a 0 -0.25a -1.0a 1cm set time base for 5/10 ns/cm fig. 2 - typical forward current derating curve average forward curent, (a) ambient temperature ( ) 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. 4 - typical instantaneous forward characteristics instantaneous forward current, (a) instantaneous forward voltage, (v) 10 1.0 .1 .01 .001 0 .2 .4 .6 .8 1.0 1.2 1.4 1.6 1.8 pulse width = 300us 1% duty cycle t j = 25 efm 208 a EFM201A~efm204a efm205a~efm206a fig. 6 - typical junction capacitance 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 junction capacitance, (pf) fig. 5 - maximum non-repetitive forward surge current peak forward surge current, (a) number of cycles at 60hz 105 90 75 60 45 30 15 0 .1 .5 1 2 5 10 20 50 400200100 t j = 25 0 25 50 75 100 125 150 175 3.0 2.0 1.0 0s do-214ac / sma package
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