dimensions in inches and (millimeters) - 68 - version: c07 sras2020 - sras20150 20.0 amps. surface mount schottky barrier rectifiers d 2 pak features for surface mounted application ideal for automated pick & place low power loss, high efficiency high current capability, low vf high reliability epitaxial construction guard-ring for transient protection mechanical data cases: d 2 pak molded plastic epoxy: ul 94v-0 rate flame retardant terminals: pure tin plated, lead solderable per mil-std-202, method 208 guaranteed polarity: as marked high temperature soldering guaranteed: 260 o c/10 seconds at terminals weight: 1.70 grams maximum ratings and electrical characteristics rating 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% type number symbol sras 2020 sras 2030 sras 2040 sras 2050 sras 2060 sras 2090 sras 20100 sras 20150 units maximum recurrent peak reverse voltage v rrm 20 30 40 50 60 90 100 150 v maximum rms voltage v rms 14 21 28 35 42 63 70 105 v maximum dc blocking voltage v dc 20 30 40 50 60 90 100 150 v maximum average forward rectified current see fig. 1 i (av) 20 a peak forward surge current, 8.3 ms single half sine-wave superimposed on rated load (jedec method ) i fsm 330 a maximum instantaneous forward voltage @ 20a @ 40a v f 0.57 0.73 0.70 0.85 0.92 1.02 1.02 1.12 v 0.5 0.1 maximum d.c. reverse current @ tj=25 o c at rated dc blockin g volta g e @ tj=125 o c i r 15 10 5.0 ma ma typical junction capacitance (note 2) pf 1400 pf typical thermal resistance (note 1) r jc 1.5 o c/w operating junction temperature range t j -65 to +150 o c storage temperature range t stg -65 to +150 o c notes: 1. mounted on heatsink size of 2? x 3? x 0.25? al-plate 2. measured at 1mhz and applied reverse voltage of 4.0v d.c.
ratings and characteristic curves (sras2020 thru sras20150) fig.2- maximum non-repetitive forward surge current per bridge element p e a k f o r w a r d s u r g e c u r r e n t . ( a ) 1 2 3 4 1.5 5 6 9 8 7 10 25 20 15 30 100 60 40 80 20 100 300 400 200 number of cycles at 60hz 60 80 40 2.5 fig.1- forward current dera ting curve a v e r a g e f o r w a r d c u r r e n t . ( a ) 0 50 100 150 0 4.0 8.0 12.0 16.0 20.0 o case temperature. ( c) version: c07 fig.4- typical reverse characteristics per leg i n s t a n t a n e o u s r e v e r s e c u r r e n t . ( m a ) 0 20 40 60 80 100 120 140 .001 .01 .10 1.0 10 percent of rated peak reverse volt age. (%) 0 tj=125 c 0 tj=2 5 c 0 tj=7 5 c fig.6- typical transient thermal impedance per leg o t r a n s i e n t t h e r m a l i m p e d a n c e . ( c / w ) 1 0.01 0.1 10 100 0.1 10.0 1 100 t, pulse duration. (sec) fig.3- typical forward characteristics per leg i n s t a n t a n e o u s f o r w a r d c u r r e n t . ( a ) .2 .3 .4 .5 .6 .7 .8 .9 0.1 1.0 10 100 instantaneous forw ard voltage. (v) fig.5- typical junction capacit ance per leg j u n c t i o n c a p a c i t a n c e . ( p f ) 0.1 1 10 100 100 1,000 5,000 reverse voltage. (v) 0 tj =2 5c f= 1. 0m hz vs ig= 50 m vp -p 1.0 sr as 20 20 -2 04 0 s r a s 20 50 -2 06 0 s r a s 2 0 9 0 -2 0 1 0 0 0 tj=25 c pulse width-300 s1% duty cycle s r a s 2 0 1 5 0
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