high efficiency, single-digit numeric displays sim-013stw1 la-101ak series the la-101ak series are led numerical displays designed to allow use even in bright locations. the height of the character is 25.4 mm, and two colors are available: red and green. these displays are designed for use in large numerical displays. l features 1) height of character: 25.4 mm 2) dimensions: 24 x 34 x 10.5 mm 3) a common anode configuration and a common cathode configuration are available for each color. 4) the package surface is painted black and the segments are colored the display color. 5) high luminance, clear display. l dimensions (unit : mm) l pin assignments 1 segment "e" 2 segment "d" 3 common 4 segment "c" 5 d.p 6 segment "b" 7 segment "a" 8 common 9 segment "f" segment "g" l internal circuit schematic l selection guide anode cathode 10 pin no. function la-101va la-101vk la-101ma la-101mk green red common emitting color 1/4 2017.03 - rev.c data s heet www.rohm.com ? 2015 rohm co., ltd. all rights reserved.
la-101ak series power dissipation power dissipation forward current peak forward current reverse voltage operating temperature storage temperature * pulse width 1ms, duty 1 / 5 ( ) is d.p value l electrical and optical characteristics (t a = 25c) reverse current v r =3v i f =10ma spectral line half width i f =10ma not designed for radiation resistance. the forward voltage and reverse current values are the guaranteed values per element. l luminous intensity condition i f =10ma l absolute maximum ratings (t a = 25c) typ. min. - - - unit v m a max. green min. typ. max. nm nm v ma green la-101ma / mk la-101va / vk red c c parameter symbol unit mw mw p d / seg p d i f 640 85 (45) 20 640 85 (45) 15 ma typ. red 4.0 2.0 i fp v r t opr t stg - 30 to + 85 - 25 to + 75 60 * 5 60 * 5 - - 5.6 2.8 min. - - parameter i r l p dl conditions i f =10ma symbol v f elements 2 1 peak wavelength 100 - - 4.2 2.1 - 563 40 parameter - - - - 650 40 5.6 2.8 100 - - - - - forward voltage red green type la-101va la-101vk la-101ma la-101mk l p 650 563 unit mcd mcd max. - - 16 5.6 10 3.6 2/4 2017.03 - rev.c www.rohm.com ? 2015 rohm co., ltd. all rights reserved. datasheet
la-101ak series l electrical and optical characteristics curves fig.1 forward current vs. forward voltage fig.2 relative luminous intensity vs. forward current forward current : i f [ma] relative luminous intensity fig.3 relative luminous intensity vs. case temperature fig.4 ratio of maximum tolerable peak current vs. pulse duration ( i ) relative luminous intensity case temperature : [ c] pulse duration : tw [ m s ] forward voltage : v f [v] forward current : i f [ma] ratio of maximum tolerable peak current to maximum forward current i f peak max . i f max . 1 10 1 10 100 1000 10000 20khz 10khz 5khz 2khz 1khz 500hz 200hz 100hz 50khz la - 101ma la - 101mk 3/4 2017.03 - rev.c www.rohm.com ? 2015 rohm co., ltd. all rights reserved. datasheet
la-101ak series l electrical and optical characteristics curves fig.5 ratio of maximum tolerable peak current vs. pulse duration ( i i ) fig.6 derating forward current : i f [%] pulse duration : tw [ m s ] ambient temperature : t a [ c] ratio of maximum tolerable peak current to maximum forward current i f peak max . i f max . 1 10 1 10 100 1000 10000 20khz 10khz 5khz 2khz 1khz 500hz 200hz 100hz 50khz la - 101va la - 101vk 4/4 2017.03 - rev.c www.rohm.com ? 2015 rohm co., ltd. all rights reserved. datasheet
r1102 a www.rohm.com ? 2015 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 the information contained herein is subject to change without notice. before you use our products, please contact our sales representative and verify the latest specifica- tions : although rohm is continuously working to improve product reliability and quality, semicon- ductors can break down and malfunction due to various factors. therefore, in order to prevent personal injury or fire arising from failure, please take safety measures such as complying with the derating characteristics, implementing redundant and fire prevention designs, and utilizing backups and fail-safe procedures. rohm shall have no responsibility for any damages arising out of the use of our poducts beyond the rating specified by rohm. examples of application circuits, circuit constants and any other information contained herein are provided only to illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. 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 or any other parties. rohm shall have no responsibility whatsoever for any dispute arising out of the use of such technical information. the products are intended for use in general electronic equipment (i.e. av/oa devices, communi- cation, consumer systems, gaming/entertainment sets) as well as the applications indicated in this document. the products specified in this document are not designed to be radiation tolerant. for use of our products in applications requiring a high degree of reliability (as exemplified below), please contact and consult with a rohm representative : transportation equipment (i.e. cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and power transmission systems. do not use our products in applications requiring extremely high reliability, such as aerospace equipment, nuclear power control systems, and submarine repeaters. rohm shall have no responsibility for any damages or injury arising from non-compliance with the recommended usage conditions and specifications contained herein. rohm has used reasonable care to ensur the accuracy of the information contained in this document. however, rohm does not warrants that such information is error-free, and rohm shall have no responsibility for any damages arising from any inaccuracy or misprint of such information. please use the products in accordance with any applicable environmental laws and regulations, such as the rohs directive. for more details, including rohs compatibility, please contact a rohm sales office. rohm shall have no responsibility for any damages or losses resulting non-compliance with any applicable laws or regulations. when providing our products and technologies contained in this document to other countries, you must abide by the procedures and provisions stipulated in all applicable export laws and regulations, including without limitation the us export administration regulations and the foreign exchange and foreign trade act. this document, in part or in whole, may not be reprinted or reproduced without prior consent of rohm. 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14)
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