lightkey spec no: ds10121509 rev : a.4 checke d: emil y zh ou appr oved: m.h. lin p a ge: 1/3 http://www .l tkey .c om tel: 0086-574 -863 222 82 da te: jul/20/201 1 dat a shee t of 0.25 inch three digit 7 segment led display ld253 1a/b series - 0.25 inch thr ee digit 7 segment led displa y at t e n t i o n ob ser ve pr ec a u t i o n s fo r h a ndl i n g e l e c tro s t a ti c di s c h a rg e sen s i t i v e d evi c e s available options ? alternativ e emi tting lumi nosit y: standar d or hi gh bri ghtn e ss versio n ? alternativ e emi tted color ? alternativ e seg m ent color ? alternativ e font ? common c a th ode is av ail a b l e ? crop ped termi nal p i ns f e a t u r e s ? 6.20 mm (0.25i nch) di git hig h ? e x c e l l e n t d i g i t a p p e a r a n c e ? w i d e v i e w i n g a n g l e ? r a n g e o f e m i t t e d c o l o r s ? i . c . c o m p a t i b l e ? l o w p o w e r c o n s u m p t i o n ? w h i t e s e g m e n t ? rohs com p li a n t package di mensions a b c d e f g notes: 1. all dim ens ion s are in mil limet ers(inche s ), t o lerance is + 0.25mm(0.01i nch)unl e ss other w i se noted. 2. specific ation s are subj ect to change w i thout notice. 3. t he ga p between the reflector and pcb s hall not ex ceed 0.2 5 mm
lightkey spec no: ds10121509 rev : a.4 checke d: emil y zh ou appr oved: m.h. lin p a ge: 2/3 http://www .l tkey .c om tel: 0086-574 -863 222 82 da te: jul/20/201 1 dat a shee t of 0.25 inch three digit 7 segment led display internal circuit diagram l d 2 5 3 1 a ( c o m m o n c a t h o d e ) a aa bb b cc c dd d eee ff ggg f 79 2 3 41 5 10 8 6 di g . 1 di g. 2 di g . 3 ld25 31 b (common ano d e) selection guide three digits 7 segment led display , digit he ight: 6.20m m(0.25inch ) , external dimensions : 15.00x 8.00x 4 . 00mm (lxwxhmm) part no. chip iv @if=20ma iv @if=20ma one seg one dp common cathode common anod e material c o l o r w l d m i n . ty p. m i n . t y p. ld25 3 1 a r ld25 3 1 b r g a a l a s s u p e r r e d 6 4 0 8 1 0 8 1 0 ld25 31ad ld25 31bd gaalas hi-red 640 18 25 18 2 5 ld25 31ao ld25 31bo gaasp oran g e 625 7 9 7 9 ld25 31ay ld25 31by g a a s p y e l l o w 5 8 8 8 1 0 8 1 0 ld25 31ag ld25 31bg gap gree n 568 7 9 7 9 ld25 31aur ld25 31bur algainp u ltra red 640 30 45 30 4 5 ld25 31auo ld25 31buo algainp u ltra o r an ge 625 45 60 45 6 0 ld25 31aua ld25 31bua algainp u ltra ambe r 65 30 45 30 4 5 ld25 31auy ld25 31buy algainp u ltra yello w 595 30 45 30 4 5 ld25 31aug ld25 31bug algainp u ltra g r ee n 573 30 45 30 4 5 ld25 31apg ld25 31bpg ingan pure g r e e n 525 120 3 0 0 120 300 ld25 31aub ld25 31bub ingan ultra blue 470 30 45 30 4 5 ld25 31auw ld25 31buw i n g a n ultra w h i t e \ 1 0 0 1 2 0 1 0 0 1 2 0 u n i t : \ \ \ n m m c d m c d m c d m c d
lightkey spec no: ds10121509 rev: a.4 checked: emil y zhou approved: m.h. lin page: 3/3 http://www.ltkey.com tel: 0086-574-86322282 date: jul/20/2011 datasheet of 0.25 inch three digit 7 segment led display electrical characteristics & absolute maximum ratings parameter electrical optical characteristics [1] absolute maximum ratings [1] forward voltage @ if=20ma emitted color typ. max. reverse current vr=5v power dissipation dc forward current peak forward current [2] per seg. 1.8 2.2 30 60 25 100 super red per dp 1.8 2.2 30 60 25 100 per seg. 1.8 2.2 30 60 25 100 hi-red per dp 1.8 2.2 30 60 25 100 per seg. 2.1 2.5 30 80 30 100 orange per dp 2.1 2.5 30 80 30 100 per seg. 2.1 2.5 30 80 30 100 yellow per dp 2.1 2.5 30 80 30 100 per seg. 2.2 2.5 30 80 30 100 green per dp 2.2 2.5 30 80 30 100 per seg. 1.9 2.6 30 60 30 100 ultra red per dp 1.9 2.6 30 60 30 100 per seg. 2 2.6 30 65 30 100 ultra orange per dp 2 2.6 30 65 30 100 per seg. 2 2.6 30 65 30 100 ultra amber per dp 2 2.6 30 65 30 100 per seg. 2 2.6 30 65 30 100 ultra yellow per dp 2 2.6 30 65 30 100 per seg. 2.1 2.6 30 75 30 100 ultra green per dp 2.1 2.6 30 75 30 100 per seg. 3.5 4 30 110 30 100 pure green per dp 3.5 4 30 110 30 100 per seg. 3.5 4 30 120 30 100 ultra blue per dp 3.5 4 30 120 30 100 per seg. 3.5 4 30 120 30 100 ultra white per dp 3.5 4 30 120 30 100 unit: \ v v ua mw ma ma notes: 1. at ta=25 deg. 2. peak forward current at 1/10 duty cycle, 0.1ms pulse
|
