page . 1 stad-sep.11.2003 data sheet features ? plastic package has underwriters laboratory flammability classification 94v-o ? for surface mounted applications ? low profile package ? built-in strain relief ? low power loss, high efficiency ? high surge capacity ? for use in low voltage high frequency inverters, free wheeling, and polarity protection applications sd320yt~sd3100yt surface mount schottky barrier rectifiers .098(2.5) .032(0.8) .264(6.7) .09 .09 .216(5.5) .024(0.6) .071(1.8) .02(0.5) .225(5.7) .307(7.8) .063(1.6) .082(2.1) .012(0.3) .248(6.3) (2.3) (2.3) .200(5.1) .016(0.4) .051(1.3) .209(5.3) .283(7.2) .047(1.2) to-251ab unit : inch (mm) voltage 20 to 100 volts current 3.0 ampere mechanical data case: to-251ab molded plastic terminals: solder plated, solderable per mil-std-750,method 2026 polarity: as marking weight: 0.015 ounces, 0.4grams. maximum ratings and electrical characteristics ratings at 25c ambient temperature unless otherwise specified. single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20% r e t e m a r a pl o b m y st y 0 2 3 d st y 0 3 3 d st y 0 4 3 d st y 0 5 3 d st y 0 6 3 d st y 0 8 3 d st y 0 0 1 3 d ss t i n u e g a t l o v e s r e v e r k a e p t n e r r u c e r m u m i x a m v rrm 0 20 30 40 50 60 80 0 1v e g a t l o v s m r m u m i x a m v rms 4 11 28 25 32 46 50 7v e g a t l o v g n i k c o l b c d m u m i x a m v dc 0 20 30 40 50 60 80 0 1v ) m m 5 . 9 ( " 5 7 3 . t n e r r u c d e i f i t c e r d r a w r o f e g a r e v a m u m i x a m t t a h t g n e l d a e l c 5 7 = o c i av 0 . 3a e v a w - e n i s f l a h e l g n i s s m 3 . 8 : t n e r r u c e g r u s d r a w r o f k a e p ) d o h t e m c e d e j ( d a o l d e t a r n o d e s o p m i r e p u s i fsm 5 7a a 0 . 3 t a e g a t l o v d r a w r o f m u m i x a m v f 0 5 . 04 6 . 05 8 . 0v t e g a t l o v g n i k c o l b c d d e t a r t a t n e r r u c e s r e v e r c d m u m i x a m c 5 2 = o c t e g a t l o v g n i k c o l b c d d e t a r t a t n e r r u c e s r e v e r c d m u m i x a m c 0 0 1 = o c i r 2 . 0 0 2 a m c n a t s i s e r l a m r e h t l m u m i x a me r c j0 . 5 o w / c g n a r e r u t a r e p m e t n o i t c n u j g n i t a r e p o t j 5 2 1 + o t 0 5 - g n a r e r u t a r e p m e t e g a r o t s t stg 0 5 1 + o t 5 6 - o c c y
page . 2 stad-sep.11.2003 rating and characteristic curves fig.1- forward current derating curve fig.4- typical instantaneous forward characteristics fig.2- maximum non - repetitive surge current fig.3- typical reverse characteristics instantaneous reverse current ,ma percent of instantaneous reverse voltage,(%) instantaneous forward current amperes instantaneous forward voltage, volts peak forward surge current , amperes no. of cycle at 60hz case temperature, c o average forward current, amperes 4.0 0 20 40 60 80 100 120 140 2.0 1.0 3.0 5.0 resisttive or inductive load .4 .5 .6 .8 1.0 .7 .9 1.1 50 0.1 10 1.0 .3 .2 tj=25 c f=1.0mhz visg=5mvp-p o 20-40v 50-60v 80-100v 120 140 10 1.0 0.1 .01 .001 020406080100 t =100 c j o t= j 75 c o t= j 25 c o 1 10 100 60 80 30 45 75 15 0
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