1/3 www.rohm.com c 2010 rohm co., ltd. all rights reserved. 2010.12 - rev.a single digit high brightness led numeric display lap-301 b / l series lap-301 b / l series are the numberical display units ? dimensions (unit : mm) featuring rohm?s in-house 4-element(algainp) high-brightness led dies.their luminous intensity is top class in the industry while degradation is considerably slow, which helps to keep illumination vividness almost unchanged and the image of sets high over a long period of time. ? features 1) 8mm for letter height, single-line led numerical displays. 2) about 10 times more luminous intensity than the conventional products by use of 4-element led dies. (in case of orange color) 3) the same luminous intensity as the conventional products at their 1/10 of current, which contributes lots to energy-saving of sets. 4) light-leakage from segments probable with the small display packages is very rare. 5) both anode common type and cathode common type are available in lineup for each color. ? selection guide anode cathode emitting color common red lap-301vb lap-301vl orange lap-301db lap-301dl yellow lap-301yb lap-301yl green LAP-301MB lap-301ml ? pin assignments p in no. 1 + 2 + 3 + 4 + 5 1 0 9 8 7 6 + + + + + + a g d f b ec d.p function pin no. 1 2 3 4 5 6 7 8 9 10 segment "a" segment "f" segment "g" segment "e" segment "d" d.p cathode d.p anode segment "c" common segment "b" ? inner circuit (anode common) com 9 7 a 1 b 10 c 8 d 5 e 4 f 2 g 3 d .p 6 com 9 7 a 1 b 10 c 8 d 5 e 4 f 2 g 3 d .p 6 10? 7.0 0.5 0 + 0.1 0.25 0 + 0.1 11.0 8.0 1.0 0.8 (2.0) (8.0) (5.3) 5.0 3.8 0.5 4.0 1.0 tolerance are 0.3 unless otherwise noted:
2/3 www.rohm.com c 2010 rohm co., ltd. all rights reserved. 2010.12 - rev.a data sheet lap-301b / l series ? absolute maximum ratings (ta=25 ? c) parameter unit mw mw ma ma v ?c ?c red lap-301vb / vl 448 56 20 60 5 green LAP-301MB / ml 448 56 20 60 5 p d p d / seg i f i fp v r topr tstg ? 25 to + 75 ? 30 to + 85 power dissipation power dissipation forward current peak forward current reverse voltage operating temperature storage temperature symbol ? 1 pulse width 1ms duty 1 / 5 ? 1 ? 1 ? 1 ? 1 lap-301db / dl 448 56 20 60 5 orange lap-301yb / yl 448 56 20 60 5 yellow ? electrical characteristics (ta=25 ? c) the products are not radiations resistant. parameter red unit v a nm nm typ. 1.9 ? 650 20 max. 2.6 100 ? ? v f i r p ? forward voltage reverse current peak wavelength spectral line half width symbol i f = 10ma v r = 3v i f = 10ma i f = 10ma conditions typ. 1.9 ? 605 20 max. 2.6 100 ? ? typ. 1.9 ? 590 20 max. 2.6 100 ? ? typ. 1.9 ? 572 20 max. 2.6 100 ? ? green yellow orange ? luminous intensity p (nm) unit color 650 red orange yellow green type lap-301vb min. 14 typ. 36 mcd 605 lap-301db 56 250 mcd 590 lap-301yb 90 450 mcd 572 LAP-301MB 36 100 mcd lap-301vl lap-301dl lap-301yl lap-301ml a condition of measurement is i f = 10ma.
3/3 www.rohm.com c 2010 rohm co., ltd. all rights reserved. 2010.12 - rev.a data sheet lap-301b / l series ? electrical and optical characteristic curve fig.5 derating fig.3 relative luminous intensity - case temperature( ) fig.1 forward current - forward voltage fig.2 relative luminous intensity - forward current fig.4 ratio of maximum tolerable peak current- pulse duration 0.1 1 10 100 1 1.2 1.4 1.6 1.8 2 2.2 2.4 forward voltage : v f (v) forward current : i f ma) ta=25 0.01 0.1 1 10 110100 forward current(ma) relative luminous intensit y 0.4 0.6 0.8 1 1.2 1.4 1.6 -20 0 20 40 60 80 case temperature : tc( ) relative luminous intensit y i f =10ma 1 10 1 10 100 1000 10000 pulse duration : tw ( s) ratio of maximum tolerance peak current to maximum tolerance dc cerrent i f peak max. i f max. 20khz 10khz 5khz 2khz 1khz 500hz 200hz 100hz 50khz ta=25 0 20 40 60 80 100 120 -25 -15 -5 5 15 25 35 45 55 65 75 85 ambient temperature forward current %)
r1010 a www.rohm.com ? 2010 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specied herein is subject to change for improvement without notice. the content specied 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 specications, 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 specied in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specied 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 specied in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, ofce-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specied in this document 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 possibility of physical injury, re or any other damage caused in the event of the failure of any product, such as derating, redunda ncy, re 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 requires 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, aerospac e 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 specied herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law.
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