ultr afa st s wi tch ing re ct ifi er s ultr afa st s wi tch ing re ct ifi er s features plastic package has underwriters laboratory flammability classification 94v-o utilizing flame retardant epoxy molding compound. exceeds environmental standards of mil- s-19500/228. low power loss, high efficiency.low forward voltage, high current capability. high surge capacity. ultra fast recovery times, high voltage. mechanical dat a case: to-220ac molded plastic t erminals: lead solderable per mil-std-202, method 208 polarity: as marked.mounting position: any weight: 0.08 ounces, 2.24 grams. c h e n g - y i c h e n g - y i el ec t r o n ic volt age range -50 to 800 vol ts current -8.0 amperes maximum recurrent peak reverse voltage typy number maximum rms voltage maximum dc blocking voltage u f 8 0 0 u f 8 0 1 u f 8 0 2 u f 8 0 3 u f 8 0 4 u f 8 0 6 u f 8 0 8 u n i t s 5 0 1 0 0 2 0 0 3 0 0 4 0 0 6 0 0 8 0 0 v v v v 3 5 7 0 1 4 0 2 1 0 2 8 0 4 2 0 5 6 0 5 0 1 0 0 2 0 0 3 0 0 4 0 0 6 0 0 8 0 0 m a x i m u m r a t i n g s a n d e l e c t r i c a l c h a r a c t e r i s t i c s 0 r a t i n g s a t 2 5 c a m b i e n t t e m p e r a t u r e u n l e s s o t h e r w i s e s p e c i f i e d . s i n g l e p h a s e , h a l f w a v e , 6 0 h z , r e i s t i v e o r i n d u c t i v e l o a d . f o r c a p a c i t i v e l o a d , d e r a t e c u r r e n t b y 2 0 % . typical junction capacitance (note 2) maximum reverse recovery time (note 1) maximum instantaneous forward voltage at 8.0a typical junction resistance (note 3) r ja operating and storage temperature ra nge t j , t stg peak forward surge current, 8.3 ms single half sine-wavesuperimposed on rated load (jedec method) maximum average forward rectified current 0 .375"(9.5mm) lead length @ t c =100 c 0 maximum d.c reverse current @ t a= 25 c 0 at rated d.c blocking voltage @ t a =125 c 0 c 0 c / w a p f n s a 1 0 5 0 0 - 5 0 t o + 1 5 0 1 5 8 0 5 0 5 0 1 0 0 8 . 0 1 . 0 1 . 3 1 . 7 1 2 5 notes : 1. reverse recovery test conditions: i f =0.5a, i r =1.0a, i rr =0.25a 2. measured at 1 mh z and applied reverse voltage of 4.0v d.c. 3. thermal resistance from j unction to ambient and from j unction to lead length 0.375" (9.5mm) p .c.b. mounted. a a u f 8 0 0 t h r u u f 8 0 8 t o - 2 2 0 a c
fig. 1 - typical forward current derating curve fig. 2 - typical reverse characteristics fig. 1 - reverse recovery time characteristic and test circuit diagram 2 0 1 6 1 2 84 0 1 2 5 1 0 0 7 5 5 0 2 5 8 0 4 0 2 0 1 0 3 . 0 1 . 0 0 . 3 0 . 1 0 . 0 3 0 . 0 1 1 2 5 1 0 2 0 5 0 1 0 0 1 0 0 0 1 0 0 1 0 1 . 0 0 . 1 0 5 0 1 0 0 1 5 0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 0 . 4 0 . 6 0 . 8 1 . 0 1 . 2 1 . 4 1 . 8 fig. 5 - typical forward characteristics o case temperature, c forward volt age, volts munber of cycles at 60 h z 50 noninductive 1 non-inductive notes:1. rise time=7ns max. input impedance=1 megohm. 22pf 2. rise time=10ns max. source impedance=50 ohms. 10 noninductive d.u.t. oscilloscope note 1 pulse generator note 2 25 vdc (approx) (+) (+) () () set time base for10ns/cm 1cm -1.0 -0.25 0 +0.5a t rr i n s t a n t a n e o u s r e c t i f i e d c u r r e n t , m i c r o a m p e r e s . 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 ) percent of rated peak reverse vol tage p e a k f o r w a r d c u r r e n t . a m p e r e s p e a k f o r w a r d c u r r e n t . a m p e r e s 0 t = 25c j 0 t = 12 5 c j 0 t j =25 c 8.3ms single half since-wavejedec method fig. 3 - maximum non-repetitive forward surge current 2 1 0 2 0 0 1 6 0 1 2 0 8 0 4 0 0 1 2 5 1 0 2 0 5 0 1 0 0 2 0 0 5 0 0 fig. 4 - typicl junction capa citance reverse volt age, volts c a p a c i t a n c e . ( p f ) uf800 uf808 uf808 uf800 rating and characteristics curves uf800 thru uf808 c h e n g - y i c h e n g - y i el ec t r o n ic ultr afa st s wi tch ing re ct ifi er s ultr afa st s wi tch ing re ct ifi er s u f 8 0 0 t h r u u f 8 0 8
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