S ON G CH UA N S ONG C HUAN 303 303 Features Ultra Micro ISO Automotive relay. High Rating up to 20A. High Temperature withstand up to 125 ambient. General Purpose for Automotive applications. Type List E n c l o s u r e s t y l e T e r m i n a l C o n t a c t D e s i g n a t i o n S e a l e d t y p e s t y l e f o r m ( p r o v i d e d w i t h ) D u s t c o v e r F lux tight S e a l e d t y p e washable - - - - - - - - - - 3 0 3 - 1 AH- D 3 0 3 - 1 AH- C 3 0 3 - 1 AH- V 3 0 3 - 1 AH- S 1A (1 ) S o c k e t t e r m i n a l R e s i s t o r 3 0 3 - 1 AH- D- R 1 3 0 3 - 1 AH- C- R 1 3 0 3 - 1 AH- V- R 1 3 0 3 - 1 AH- S- R 1 (SPNO) D i o d e 3 0 3 - 1 AH- D- D1 3 0 3 - 1 AH- C- D1 3 0 3 - 1 AH- V- D1 3 0 3 - 1 AH- S- D1 Note( 1 ) 12VDC COIL : 6 8 0 R e s i s t o r i n p a r a l l e l Ordering Information 303 - 1A H - D - R1 1 2 3 4 5 1 . 3 0 3 - - B a s i c s e r i e s d e s i g n a t i o n 5 . B l a n k - - S t a n d a r d t y p e R 1 - - C o i l p a r a l l e l w i t h r e s i s t o r 6 8 0 f o r 2 . 1 A - - S i n g l e p o l e n o r m a l l y o p e n c o i l v o l t a g e 1 2 V D C D 1 - - C o i l p a r a l l e l w i t h d i o d e I N 4 0 0 7 t h e 3 . H - - C o n t a c t m a t e r i a l A g S n O p o s i t i v e p o l e + o n 8 5 t e r m i n a l 4 . D - - D u s t c o v e r C - - F l u x t i g h t V - - S e a l e d t y p e S - - S e a l e d t y p e w a s h a b l e Contact Rating Induct i v e 4A 14VDC O N 3 s / O F F 3 s - 3 0 + 8 0 8 8 0 K o p s . M o t o r f u e l - pump 8 A 14V DC Inrush 3 0A O N 1 s / O F F 3 s - 3 0 + 8 0 1 6 0 K o p s . M o t o r r a d i a t o r - f a n 1 6 A 1 4 V D C I n r u s h 8 0 A O N 2 s / O F F 5 s - 3 0 + 8 0 4 4 0 K o p s . Lamp 1 6 A 1 4 V D C I n r u s h 8 0 A O N 3 s / O F F 3 s - 3 0 + 1 0 0 1 0 0 K o p s . R e s i s t i v e 2 0A 14 V DC +25 1 0 0 K o p s . Max. switching current C o i l 1 6 V D C / C o n t a c t 2 0 A 1 4 V D C + 1 0 0 Coil Rating (DC) R a t e d R a t e d c u r r e n t C o i l r e s i s t a n c e Max . conti nu ou s P ick up D r o p o u t P ower c ons umption v o l t a g e 1 0 % a t 2 3 C 1 0 % a t 2 3 C v o l t a g e v o l t a g e ( Max) v o l t a g e ( M i n ) a t r a t e d (V) (mA) ( ) a t 8 5 C a t 2 3 C a t 2 3 C v o l t a g e 1 3 3 % o f 6 0 % o f 1 0 % o f 1 2 8 0 1 5 0 r a t e d r a t e d r a t e d a p p r o x . 0 . 9 6 W v o l t a g e v o l t a g e v o l t a g e 246S ON G C HU AN S ONG CH UA N 303 303 Specification C o n t a c t m a t e r i a l AgSnO a l l o y ( 1 ) C o n t a c t v o l t a g e d r o p NO:200 mV Max. at 15A NC:250mV Max. at 10A ( 1 ) O p e r a t e t i m e 10 ms MAX ( 1 ) R e l e a s e t i m e 10 ms MAX ( 1 ) I n s u l a t i o n r e s i s t a n c e 2 0 M Min. (DC 500V) B e t w e e n o p e n c o n t a c t : AC 500V , 50/60Hz 1 min. ( 1 ) D i e l e c t r i c s t r e n g t h B e t w e e n c o n t a c t a n d c o i l : AC 500V , 50/60Hz 1 min. O p e r a t i n g e x t r e m e s 1 0 500Hz , 5.0G V i b r a t i o n r e s i s t a n c e Damage limits 1 0 500Hz , 5.0G O p e r a t i n g e x t r e m e s 1 0 G S h o c k r e s i s t a n c e Damage limits 1 0 0 G 1 0 , 0 0 0 , 0 0 0 o p e r a t i o n s M e c h a n i c a l ( f r e q u e n c y 1 8 , 0 0 0 o p e r a t i o n s / h r ) L i f e e x p e c t a n c y 1 0 0 , 0 0 0 o p e r a t i o n s E l e c t r i c a l ( f r e q u e n c y 1 , 8 0 0 o p e r a t i o n s / h r ) O p e r a t i n g a m b i e n t t e m p e r a t u r e - 4 0 ~ + 1 2 5 C ( n o f r e e z i n g ) W e i g h t A p p r o x . 2 0 g N o t e : ( 1 ) I n i t i a l v a l u e Outline Dimensions 1 6 1 5 (0 .6 3 0 ) (0 .5 9 1 ) 0 .8 X5 (0 .0 3 1 ) 8 .1 (0 .3 1 9 ) Wiring Diagram B OTTOM VIE W 1A (R1) 1A 3 0 8 6 3 0 8 6 8 5 8 7 8 5 8 7 247 7 .8 1 1 2 3 .7 (0 .3 0 7 ) (0 .4 3 3 ) (0 .9 3 3 )