- 46 - features f or s urf ac e m ount ed a pp l i c at i o n e a s y p i c k a n d p l ac e m e ta l to sili co n r e ct i f i e r , m a j o r i t y ca r r i e r co n d u ct i o n low pow e r l o ss , hi g h ef f i ci e n c y h i gh c u r r en t c a pa bi l i t y , l o w v f h i gh s u r g e c u r ren t c ap a bi l i t y p l as t i c ma t e ri al u se d c ar r i e rs u n d er w ri t e rs labor ator y c l a s s i f i c a t i o n 9 4 v - 0 e p i t ax i al c o n s t ru c t i on h i g h t e m p erat ure s o l d er i n g : 260 o c / 10 se co n d s a t te r m in a l s m e c h a n i c a l d a t a c a s e : j e d e c sma/ d o -214a c m o lded plas t i c t e rm inals : pure t i n plat ed , lead f r ee polarit y : i ndic a t e d by c a t h ode band w e ight : 0. 064 gram m axi mum r at i ngs and el ectr i c al c h ar acter i st i cs rati ng at 25 o c am bi ent tem p erature u n less ot herw i s e spec i f i e d . s i ng l e p hase, ha l f w ave, 60 hz, res i st i v e or i n ducti v e l o ad. for cap a c i t i ve l o ad, dera te cur r ent by 20% ty p e n u m b e r symb o l ss 32 a ss 33 a ss 34 a ss 35 a ss 36 a ss 39 a ss 310 a ss 3 20 a un i t s maxim u m r ec u rr e n t p eak r e v er s e v ol t age v rrm 20 30 40 50 60 90 100 20 0 v ma x i m u m r m s v o l t age v rms 14 21 28 35 42 63 70 1 40 v ma x i m u m d c b l oc k i ng v o l t age v dc 20 30 40 50 60 90 100 20 0 v m a x i m u m a v er a g e f or w a r d r e c t i f i e d c u r r e n t at t l (s ee f i g . 1) i ( av) 3.0 a peak f o rw ar d s u r g e c u r r e n t , 8. 3 m s s i n g le h a l f s i n e- w av e s u pe ri mp os e d on r a t ed load (j e d e c m et h od ) i fsm 100 70 a max i m u m i ns t a nta n e o us f orw ar d v o l t age (n o t e 1 ) i f = 3 . 0 a @ 2 5 o c @ 1 0 0 o c v f 0. 5 0. 4 0. 75 0. 65 0. 85 0. 70 0. 95 0. 80 v 0.5 0.1 m a xi m u m dc r e v e r s e c u r r ent @ t a =25 o c at ra t e d dc bl o cki ng vo l t a g e @ t a =125 o c i r 10 5 0. 5 ma ma operat i n g tem p e r at ure r a nge t j - 5 5 to + 1 2 5 - 5 5 to + 1 5 0 o c s t orage tem perat ure r a nge t st g -55 t o + 1 50 o c n ot es : 1. pulse test with pw=300 usec, 1% duty cycle s s3 2 a - s s3 20 a 3 .0 amps. surfa ce mount schottky barrier rectif iers dimensions in inches and (millimeters) sma/do-214ac ty p i ca l t h e r m a l re sis t a n ce ( no t e 2 ) r jl r ja 28 88 o c/w http://www.luguang.cn mail:lge@luguang.cn http://
ratings and characteristic curves (ss32 a thru ss3 20 a ) fig.2- maximum non-repetitive peak forward surge current peak forward surge current. (a) 1 10 100 100 80 60 40 20 0 number of cycles at 60hz at rated tl 8.3ms single half sine wave jedec method fig.1- maximum forward current derati ng curve a verage for w ard current . (a) 50 60 70 80 90 100 110 120 160 150 140 130 0 1 2 3 o lead temperature. ( c) resistive or inductive load ss32 a -ss3 4 a ss35 a -ss3 20 a pcb mounted on 0.6x0.6" (16x16mm) copper pad areas fig.3- typical forward characteristics instantaneous forward current. (a) 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.01 0.1 1 10 40 forward volt age. (v) 0 tj=25 c pulse width=300 s 1% duty cycle fig.4- typical reverse characteristics instantaneous reverse current. (ma) 0 20 40 60 80 100 120 140 0.001 0.01 0.1 1 10 20 percent of rated peak reverse volt age. (%) 0 tj=125c 0 tj =25 c 0 tj=75c ss32 a -ss34 a ss35 a -ss3 20 a fig.5- typical junction capacit ance junction capacitance.(pf) 0.1 1 10 100 10 100 1000 reverse voltage. (v) ss32 a -ss34 a ss35 a -ss36 a ss39 a -ss3 20 a 0 tj =25c f=1.0mhz vsig=50mvp-p ss32 a -ss34 a ss39 a -ss3 2 0 a ss35 a -ss36 a ss3 20 a s s3 2a - s s3 20 a 3 .0 amps. surfa ce mount schottky barrier rectif iers fig.6- typical transient thermal characteristics transient thermal impedance. ( c/w) o 1 0.01 0.1 10 100 100 10 1 0.1 t , pulse dura tion. (sec) http://www.luguang.cn mail:lge@luguang.cn
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