lightkey spec no: ds10121536 rev : a.4 checke d: emil y zh ou appr oved: m.h. lin p a ge: 1/3 http://www .displa y -leds.com tel: 0 086- 574- 863 2228 2 da te: jul/20/201 1 dat a shee t of 0.25 inch four digit 7 segment led displa y ld254 1u/v series - 0.25 inch dua l 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 3 . 5 0 1 1 . 0 0 6 . 2 ( . 2 5 " ) pi n1 6. 0 0 6. 00 6. 00 d d2 36 .0 0 0. 8 0 d3 d1 a b c e f g 5 . 1 0 2. 5 4 * 5 =1 2. 70 7 . 4 0 0 . 5 0 10 . 0 dig. 2 8. 10 di g.1 dig. 4 dig. 3 0. 45 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: ds10121536 rev : a.4 checke d: emil y zh ou appr oved: m.h. lin p a ge: 2/3 http://www .displa y -leds.com tel: 0 086- 574- 863 2228 2 da te: jul/20/201 1 dat a shee t of 0.25 inch four digit 7 segment led displa y internal circuit diagram l d 2 5 4 1 u ( c o m m o n c a t h o d e ) ld25 41v (common ano d e) selection guide four digits 7 segment le d display , digit he igh t: 6. 20mm(0.25in c h), exte rnal dimensions : 36.00x 11.00 x 5 .10mm (lx w x h) 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 . ty p. ld25 41 ur ld25 41vr gaalas super r e d 640 8 10 8 10 ld25 41 ud ld25 41vd gaalas h i - r e d 6 4 0 1 8 2 5 1 8 2 5 ld25 41 uo ld25 41vo gaasp oran ge 625 7 9 7 9 ld25 41 uy ld25 41vy gaasp yellow 588 8 10 8 10 ld25 41 ug ld25 41vg g a p gree n 568 7 9 7 9 ld25 41 uur ld25 41vur algainp u ltra red 640 30 45 3 0 45 ld25 41 uuo ld25 41vuo algainp u ltra o r an ge 625 45 60 4 5 60 ld25 41 uua ld25 41vua algainp u ltra ambe r 65 30 45 3 0 45 ld25 41 uuy ld25 41vuy algainp u ltra yello w 595 30 45 3 0 45 ld25 41 uug ld25 41vug algainp u ltra g r ee n 573 30 45 3 0 45 ld25 41 upg ld25 41vpg ingan pure g r e e n 525 120 300 120 300 ld25 41 uub ld25 41vub ingan ultra b l u e 470 30 45 3 0 45 ld25 41 uuw ld25 41vuw ingan ultra white \ 100 120 100 120 u n i t : \ \ \ n m m c d m c d m c d m c d
lightkey spec no: ds10121536 rev: a.4 checked: emil y zhou approved: m.h. lin page: 3/3 http://www.display-leds.com tel: 0086-574- 86322282 date: jul/20/2011 datasheet of 0.25 inch four digit 7 segment led display electrical characteristics & absolute maximum ratings electrical characteristics [1] absolute maximum ratings [1] forward voltage@ if=20ma 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 c. 2. peak forward current at 1/10 duty cycle, 0.1ms pulse.
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