la-401 d / n series led displays rev.d 1/4 single digit led numeric display la-401 d / n series la-401 d / n series is developed because of the demand for small single digit led numeric display. materials of emission are gaasp on gap, algalnp gap and gan. this is the height of a letter 10.16mm, single digit led numeric display that is packed by epoxy resin. z features 1) the height of a letter is 10.16mm. 2) dimension is 9.6 13.0 7.0mm. 3) the package of surface color is black. color of segment is colored in emitting color. (blue color is only milky white) 4) each color has anode common and cathode common respectively. z dimensions (unit : mm) 10? 13.0 10.16 1.0 1.0 0.5 (10.16) 0.25 (7.62) 7.0 3.5min. 5.57 9.6 1.0 (2.54) tolerance are 0.2 unless otherwise noted: z selection guide anodecathode emitting color common red la-401vdla-401vn red high brightness la-401adla-401an orange high brightness la-401edla-401en yellow high brightness LA-401XDla-401xn green la-401mdla-401mn blue la-401bdla-401bn z pin assignments pin no. 1 + 2 + 3 + 4 + 5 109 8 7 6 + ++ + + + a g d f b ec d.p function pin no. 12 3 4 5 6 7 8 9 10 commonsegment "f" segment "g" segment "e" segment "d" common d.p segment "c" segment "b" segment "a" z equivalent circuit (anode common) (cathode common) com 1,6 a 10 b9 c 8 d5 e4 f 2 g3 d.p 7 com 1,6 a 10 b9 c 8 d5 e4 f 2 g3 d.p 7 downloaded from: http:///
la-401 d / n series led displays rev.d 2/4 z absolute maximum ratings (ta=25 c) parameter red la-401vd / vn unit mwmw mama v ?c?c 320 4015 60 5 red high brightness yellow high brightness la-401ad / an 520 6525 50 5 orange high brightness la-401ed / en 520 6525 50 5 LA-401XD / xn 520 6525 50 5 la-401md / mn 480 6020 60 5 la-401bd / bn 336 4210 50 5 p d p d / seg i f i fp v r topr tstg ? 25 to + 75 ? 30 to + 85 peak forward currentoperating temperature storage temperature symbol ? 1 pulse width 1ms duty 1 / 5 ? 2 pulse width 0.1ms duty 1 / 10 ? 1 ? 2 ? 2 ? 2 ? 1 ? 2 power dissipationpower dissipation forward current reverse voltage green blue z electrical characteristics (ta=25 c) parameter red typ. unit v a nmnm 2.0 ? 650 40 max. 2.8 100 ?? v f i r p ? peak wavelengthspectral line half width symbol i f = 10ma v r = 3v i f = 10ma i f = 10ma conditions typ. 2.05 ? 626 18 max. 2.6 100 ?? typ. 2.05 ? 610 17 max. 2.6 100 ?? typ. 2.05 ? 589 15 max. 2.6 100 ?? typ. 2.1 ? 563 40 max. 2.8 100 ?? typ. 3.6 ? 470 26 max. 4.2 100 ?? ? ? ? ? ? ? ?? ? ? ? ? reverse current the products are not radiations resistant. ? shows the number on the condition of i f = 20ma . forward voltage red high brightness yellow high brightness orange high brightness green blue z luminous intensity p (nm) unit color 650 type la ? 401vd min. 5.6 typ. 16 mcd 626 la ? 401ad 36 90 mcd 610 la ? 401ed 36 90 mcd 589 la ? 401xd 36 90 mcd 563 la ? 401md 5.6 16 mcd 470 la ? 401bd la ? 401vn la ? 401an la ? 401en la ? 401xn la ? 401mn la ? 401bn 14 56 mcd a condition of measurement is i f = 10ma. redhigh brightness red high brightness orange high brightness yellow green blue downloaded from: http:///
la-401 d / n series led displays rev.d 3/4 z electrical and optical characteristic curves fig.1 forward current - forward voltage la-401mdla-401mn la-401vdla-401vn la-401bdla-401bn LA-401XDla-401xn 1 2 3 4 5 forward current:i f (ma) forward voltage:v f (v) ta=25 c 0.1 100 1 10 la-401edla-401en la-401adla-401an LA-401XDla-401xn fig.2 relative luminous intensity - forward current 0.01 0.10 1.00 10.00 1 10 100 relative luminous intensity forward current:i f (ma) LA-401XDla-401xn la-401edla-401en la-401adla-401an la-401mdla-401mn la-401vdla-401vn LA-401XDla-401xn la-401bdla-401bn ta=25 c fig.3 relative luminous intensity - case temperature 0.4 0.6 1.2 1.4 1.6 case temparature ( c) i f =10ma -25 -15 -5 5 15 25 35 45 55 65 75 relative luminous intensity 0.8 1 la-401mdla-401mn la-401vdla-401vn la-401bdla-401bn LA-401XDla-401xn LA-401XDla-401xn la-401edla-401en la-401adla-401an fig.4 ratio of maximum tolerable peak current - pulse duration ( ) 1 10 1 10 100 1000 10000 5 pulse duration tw(s) 50khz 10khz 20khz 5khz 1khz 200hz 500hz100hz 2khz ratio of maximum tolerance peakcurrent to maximum tolerance dc current ( ) if peak max. if max. la-401bdla-401bn fig.5 ratio of maximum tolerable peak current - pulse duration ( ? ) ratio of maximum tolerance peakcurrent to maximum tolerance dc current ( ) if peak max. if max. 1 10 1 10 100 1000 10000 pulse duration : tw (s) 50khz 20khz 10khz 5khz 2khz 1khz 500hz 200hz 100hz LA-401XDla-401xn la-401edla-401en la-401adla-401an LA-401XDla-401xn fig.6 ratio of maximum tolerable peak current - pulse duration ( ?? ) la-401mbla-401ml 1 10 100 1000 10000 100000 pulse duration : tw(s) 30hz 100hz 300hz 1khz 3khz 10khz 30khz 100khz 300khz ratio of maximum tolerable peakcurrent to maximum forward current ( ) i f peak max. i f max. 1 10 downloaded from: http:///
la-401 d / n series led displays rev.d 4/4 fig.7 ratio of maximum tolerable peak current - pulse duration ( v ? ) 1 10 1 10 100 1000 10000 pulse duration : tw(s) 100hz 200hz 500hz 1khz 2khz 5khz 10khz 20khz 50khz ratio of maximum tolerable peakcurrent to maximum forward current ( ) i f peak max. i f max. la-401vdla-401vn fig.8 derating 0% 20% 40% 60% 80% 100% 120% forward current (%) ambient temperature( c) -25 -15 -5 5 15 25 35 45 55 65 75 85 downloaded from: http:///
appendix1-rev3.0 thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact your nearest sales office. rohm customer support system the americas / europe / asia / japan contact us : webmaster@ rohm.co. jp www.rohm.com copyright ? 2008 rohm co.,ltd. 21 saiin mizosaki- cho, ukyo-ku, kyoto 615-8585, japan tel : +81-75-311-2121 fax : +81-75-315-0172 appendix notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specified herein is subject to change for improvement without notice. the content specified herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specifications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specified in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no respon- sibility for such damage. the technical information specified herein is intended only to show the typical functions of and examples of application circuits for the products. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). the products are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possi bility of physical injury, fire or any other damage caused in the event of the failure of any product, such as derating, redundancy, fire control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which re quires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specified herein that may be controlled under the f oreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law. downloaded from: http:///
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