surface mount glass passivated super fast silicon rectifier voltage range 50 to 200 volts current 2.0 ampere 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%. ufm204 thru ufm201 do-214aa maximum ratings (@ t a =25 o c unless otherwise noted) electrical characteristics (@t a =25 o c unless otherwise noted) dimensions in inches and (millimeters) ratings maximum recurrent peak reverse voltage maximum rms voltage maximum dc blocking voltage maximum average forward rectified current at t a = 55 o c peak forward surge current 8.3 ms single half sine-wave superimposed on rated load (jedec method) typical thermal resistance (note 1) typical junction capacitance (note 2) symbol v rrm v dc i fsm c j t stg v rms units volts volts volts amps 2.0 50 75 18 amps 0 c/w 0 c/w 0 c storage temperature range r q ja typical thermal resistance (note 1) 20 r q jl i o pf operating temperature range t j ufm201 50 150 -55 to + 150 0 c UFM202 ufm203 100 150 35 70 105 50 100 150 ufm204 ufm201 UFM202 ufm203 ufm204 200200 140 2006-11 characteristics maximum average reverse current at rated dc blocking voltage v f symbol i r m a maximum instantaneous forward voltage at 2.0a dc volts 5 350 @t a = 25 o c @t a = 100 o c m a units 0.9 trr maximum reverse recovery time (note 4) nsec 20 features * glass passivated device * for surface mounted applications * ultrafast recovery times dor high efficiency * low forward voltage, low power loss * low leakage current * epoxy: device has ul flammability classification 94v-o * metallurgically bonded construction * mounting position: any * weight: 0.098 gram 0.083 (2.11)0.077 (1.96) 0.155 (3.94)0.130 (3.30) 0.180 (4.57)0.160 (4.06) 0.096 (2.44)0.084 (2.13) 0.060 (1.52)0.030 (0.76) 0.220 (5.59)0.205 (5.21) 0.012 (0.305)0.006 (0.152) 0.008 (0.203)0.004 (0.102) mechanical data notes : 1. thermal resistance :mounted on pcb. 2. measured at 1 mhz and applied reverse voltage of 4.0 volts. 3. "fully rohs compliant","100% sn plating (pb-free)". 4. test conditions: i f = 0.5a, i r = -1.0a, i rr = -0.25a. downloaded from: http:///
ambient temperature, ( o c) instantaneous reverse current, ( m a) 25 2.5 0 0 2.01.5 1.0 0.5 75 50 175 100 125 150 rating and characteristics curves ( ufm201 thru ufm204 ) f i g . 2 t y p i c a l f o r w a r d c u r r e n t d e r a t i n g c u r v e f i g . 1 t e s t c i r c u i t d i a g r a m a n d r e v e r s e r e c o v e r y t i m e c h a r a c t e r i s t i c percent of rated peak reverse voltage, (%) average forward current, (a) 0 0.1 10 1.0 1000 100 60 20 40 80 100 120 140 f i g . 3 t y p i c a l r e v e r s e c h a r a c t e r i s t i c s trr +0.5a 50 w noninductive 10 w noninductive 0 -0.25a -1.0a 1cm set time base for 50/100 ns/cm notes: 1 rise time = 7ns max. input impedance = 1 megohm. 22pf. 2. rise time = 10ns max. source impedance = 50 ohms. d.u.t 25 vdc(approx) ( - ) ( - ) ( + ) ( + ) 1non- inductive oscilloscope (note 1) pulse generator (note 2) single phasehalf wave 60hz resistive or inductive load t a = 25 o c t a = 75 o c t a = 100 o c downloaded from: http:///
number of cycles at 60hz peak forward surge current, (a) instantaneous forward voltage, (v) 1 10 30 20 50 100 200 instantaneous forward current, (a) 1.0 0.3 0.1 0.03 0.01 3.0 10 20 10 5 50 100 2.5 2.0 1.5 1.0 0.5 0 3.0 3.5 rating and characteristics curves ( ufm201 thru ufm204 ) f i g . 4 t y p i c a l i n s t a n t a n e o u s f o r w a r d c h a r a c t e r i s t i c s f i g . 5 m a x i m u m n o n - r e p e t i t i v e f o r w a r d s u r g e c u r r e n t reverse voltage, (v) junction capacitance, (pf) 4 6 40 20 10 60 200 100 0.2 0.1 21 0.4 2 1.0 4 10 20 40 100 f i g . 6 t y p i c a l j u n c t i o n c a p a c i t a n c e 8.3ms single half sine-wave (jeded method) pulse width=300us 1% duty cycle t j = 25 o c t j = 25 o c downloaded from: http:///
mounting pad layout dimensions in inches and (millimeters) 0.083min. ( 2.10 min.) 0.220 0.106 max. (2.69 max.) 0.050 max. (1.27 max.) ( 5.58) ref downloaded from: http:///
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