p4smafj8.5a thru p4smafj170a surface mount transient voltage suppressor stand-off voltage: 8.5-170 volts peak pulse power: 400 watts feature mechanical data maximum ratings and characteristics ratings at 25 ambient temperatur e unle ss otherwise specifi e d. for surface mounted applications in order to o p timize board space low profile packag e g la ss pa ss i v a t ed jun c t ion low ind u ctance plastic p a ckage has underwriters laboratory fla mmability 94 v -0 case: smaf t e rminal: solder plat e d , solderabl e per mil-std-7 5 0, method 20 26 w e ight: 27mg 0.00095oz dimensions in inches and (millimeters) smaf cathode band top view 0.130(3.3) 0.146(3.7) 0.193(4.90) 0.173(4.40) 0.106(2.70) 0.094(2.40) 0.051(1.30) 0.063(1.60) 0.051(1.30) 0.043(1.10) 0.0091(0.23) 0.0071(0.18) 0.051(1.30) 0.039(1.0) p a r a m e t e r p e a k p u l s e p o w e r d i s s i p a t i o n o n t a = 2 ( n o t e 1 , 2 , 4 , f i g 1 ) 5 c ty p i c a l j u n c t i o n c a p a c i t a n c e a t v r = 4 v , f = 1 m h z s y m b o l v a l u e u n i t p p p m 4 0 0 w 3 9 0 c j p e a k f o r w a r d s u r g e c u r r e n t ( n o t e 3 , f i g 5 ) i f s m 4 0 a p e a k p u l s e c u r r e n t o n 1 0 / 1 0 0 0 u s w a v e f o r m ( n o t e 1 , f i g 2 ) i p p m s e e t a b l e 1 e s d vo l t a g e p e r i e c 6 1 0 0 - 4 - 2 c o n t a c t a i r ty p i c a l t h e r m a l r e s i s t a n c e j u n c t i o n t o a m b i e n t ( n o t e 2 ) o p e r a t i n g j u n c t i o n t e m p e r a t u r e a n d s t o r a g e t e m p e r a t u r e r a n g e v e s d 1 v e s d 2 r j a t , t j s t g 8 1 5 1 5 0 c - 5 5 ~ + 1 5 0 c / w a k v p f n o t e s : 1 . n o n - r e p e t i t i v e c u r r e n t p u l s e , p e r f i g . 3 a n d d e r a t e d a b o v e t a = 2 5 p e r f i g . 2 . 2 . m o u n t e d o n f r - 4 p c b s i n g l e - s i d e d c o p p e r , m i n i p a d . 3 . p e a k f o r w a r d s u r g e c u r r e n t : 8 . 3 m s s i n g l e h a l f s i n e - w a v e s u p e r i m p o s e d o n r a t e d l o a d ( j e d e c m e t h o d ) . 4 . p e a k p u l s e p o w e r w a v e f o r m i s 1 0 / 1 0 0 0 s . c
electrical characteristics (t a = 2 5 ) ty p e m a r k i n g r e v e r s e s t a n d - o f f vo l t a g e b r e a k d o w n vo l t a g e v r m w v b r @ i t m i n m a x v v v t e s t c u r r e n t r e v e r s e l e a k a g e m a x . c l a m p vo l t a g e p e a k p u l s e c u r r e n t i t m a a i r @ v r w m v c @ i p p i p p v a 9 . 0 1 0 1 1 1 3 1 4 1 5 1 6 1 7 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 3 3 6 4 0 4 3 4 5 1 2 4 8 8 . 5 7 0 7 5 7 8 9 0 1 0 0 1 1 0 1 2 0 1 3 0 1 5 0 1 6 0 1 7 0 8 5 5 4 5 8 6 0 6 4 5 1 p 4 s m a f j 8 . 5 a p 4 s m a f j 9 . 0 a p 4 s m a f j 1 0 a p 4 s m a f j 1 1 a p 4 s m a f j 1 2 a p 4 s m a f j 1 3 a p 4 s m a f j 1 4 a p 4 s m a f j 1 5 a p 4 s m a f j 1 6 a p 4 s m a f j 1 7 a p 4 s m a f j 1 8 a p 4 s m a f j 2 0 a p 4 s m a f j 2 2 a p 4 s m a f j 2 4 a p 4 s m a f j 2 6 a p 4 s m a f j 2 8 a p 4 s m a f j 3 0 a p 4 s m a f j 3 3 a p 4 s m a f j 3 6 a p 4 s m a f j 4 0 a p 4 s m a f j 4 3 a p 4 s m a f j 4 5 a p 4 s m a f j 4 8 a p 4 s m a f j 5 1 a p 4 s m a f j 5 4 a p 4 s m a f j 5 8 a p 4 s m a f j 6 0 a p 4 s m a f j 6 4 a p 4 s m a f j 7 0 a p 4 s m a f j 7 5 a p 4 s m a f j 7 8 a p 4 s m a f j 8 5 a p 4 s m a f j 9 0 a p 4 s m a f j 1 0 0 a p 4 s m a f j 1 1 0 a p 4 s m a f j 1 2 0 a p 4 s m a f j 1 3 0 a p 4 s m a f j 1 5 0 a p 4 s m a f j 1 6 0 a p 4 s m a f j 1 7 0 a h v h x h z i g i k i m i p i r i t i v i x i z j e j g j k j m j p j r j t j v i e j x h t r r r t r v r z s e s g s k s m s p s r r x r g r k r m r p j z r e 1 0 1 1 . 1 1 2 . 2 1 4 . 4 1 5 . 6 1 6 . 7 1 7 . 8 1 8 . 9 2 0 2 2 . 2 2 4 . 4 2 6 . 7 2 8 . 9 3 1 . 1 3 3 . 3 3 6 . 7 4 0 4 4 . 4 4 7 . 8 5 0 1 3 . 3 5 3 . 3 1 1 . 5 1 2 . 8 1 4 1 6 . 5 1 7 . 9 1 9 . 2 2 0 . 5 2 1 . 7 2 3 . 3 2 5 . 5 2 8 3 0 . 7 3 3 . 2 3 5 . 8 3 8 . 3 4 2 . 2 4 6 5 1 . 1 5 4 . 9 5 7 . 5 1 5 . 3 6 1 . 3 9 . 4 4 1 0 . 8 2 8 9 . 5 9 5 . 8 9 9 . 7 1 1 6 1 2 8 1 4 1 1 5 3 1 6 6 1 9 3 2 0 5 2 1 8 1 0 8 6 0 6 9 7 4 . 1 7 6 . 7 8 1 . 8 5 6 . 7 6 5 . 2 7 7 . 8 8 3 . 3 8 6 . 7 1 0 0 1 1 1 1 2 2 1 3 3 1 4 4 1 6 7 1 7 8 1 8 9 9 4 . 4 6 4 . 4 6 6 . 7 7 1 . 1 5 5 1 7 1 8 . 2 2 1 . 5 2 3 . 2 2 4 . 4 2 7 . 6 2 9 . 2 3 2 . 4 3 5 . 5 3 8 . 9 4 2 . 1 4 5 . 4 4 8 . 4 5 3 . 3 5 8 . 1 6 4 . 5 6 9 . 4 7 2 . 7 1 9 . 9 7 7 . 4 1 1 0 1 4 . 4 1 1 3 1 2 1 1 2 6 1 4 6 1 6 2 1 7 7 1 9 3 2 0 9 2 4 3 2 5 9 2 7 5 1 3 7 8 7 . 1 9 3 . 6 9 6 . 8 1 0 3 8 2 . 4 2 6 2 3 . 5 2 2 1 8 . 6 1 7 . 2 1 6 . 4 1 5 . 3 1 4 . 5 1 3 . 7 1 2 . 3 1 1 . 2 1 0 . 3 9 . 5 8 . 8 8 . 3 7 . 5 6 . 9 6 . 2 5 . 7 5 . 5 2 0 . 1 5 . 2 2 7 . 7 4 . 6 4 . 9 3 . 5 3 . 3 2 . 2 2 . 7 2 . 5 2 . 3 2 1 . 9 1 . 6 1 . 5 1 . 4 2 . 9 4 . 3 4 . 1 3 . 9 1 5 . 4 2 6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
f i g . 1 p e a k p u l s e p o w e r r a t i n g c u r v e 1 0 . 1 0 . 1 1 . 0 1 0 1 0 0 1 0 1 0 0 1 0 0 0 1 0 0 0 0 2 0 4 0 6 0 8 0 1 0 0 0 2 5 5 0 7 5 1 0 0 1 2 5 1 5 0 1 7 5 f i g . 2 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 . 5 m a x i m u m n o n - r e p e t i t i v e p e a k f o r w a r d s u r g e c u r r e n t 1 0 1 0 0 1 0 1 0 2 0 3 0 5 0 4 0 6 0 p , p e a k p u l s e f o r w a r d , k w p p m t d , p u l s e w i d t h , u s n o n - r e p e t i v e p u l s e . w a v e f o m s h o w n i n f i g u r e . 3 t a = 2 5 c i , p e a k f o r w a r d s u r g e c u r r e n t , f s m a m p e r e s n u m b e r o f c y c l e s a t 6 0 h z t = t m a x j j 8 . 3 m s s i n g l e h a l f s i n e p w a v e j e d e c m e t h o d p e a k p u l s e p o w e r ( p p p ) o r c u r r e n t ( i p p ) d e r a t i n g i n p e r c e n t a g e % t , a m b i e n t t e m p e r a t u r e , a c 2 0 4 0 6 0 8 0 1 0 0 0 f i g . 3 p u l s e w a v e f o r m 0 1 . 0 2 . 0 3 . 0 4 . 0 1 2 0 i , p e a k p u l s e c u r r e n t ( % ) p p m t , t i m e , m s t = 1 0 u s e c f p e a k v a l u e i p p m h a l f v a l u e - i p p / 2 1 0 / 1 0 0 0 u s e c w a v e f o r m a s d e f i n e d b y e r . e . a . p u l s e w i d t h ( t d ) i s d e f i n e d a s t h e p o i n t w h e r e t h e p e a k . c u r r e n t d e c a y s t t o 5 0 % o f i p p t a = 2 5 c 2 0 4 0 6 0 8 0 1 0 0 0 f i g . 3 p u l s e w a v e f o r m 0 1 . 0 2 . 0 3 . 0 4 . 0 1 2 0 i , p e a k p u l s e c u r r e n t ( % ) p p m t , t i m e , m s t = 1 0 u s e c f p e a k v a l u e i p p m h a l f v a l u e - i p p / 2 1 0 / 1 0 0 0 u s e c w a v e f o r m a s d e f i n e d b y e r . e . a . p u l s e w i d t h ( t d ) i s d e f i n e d a s t h e p o i n t w h e r e t h e p e a k . c u r r e n t d e c a y s t t o 5 0 % o f i p p t a = 2 5 c ratings and characteristic curves p4smafj8.5a thru p4smafj170a
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