Single Digit High Brightness LED Numeric Display LAP-401 D / N Series Datasheet LAP-401 D / N series are the numberical display units featuring ROHMs 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) 10.16mm 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. Dimensions (Unit : mm) Pin assignments Pin No. Function 1Common 2 Segment 3 Segment 4 Segment 5 Segment 6Common 7D.P 8 Segment 9 Segment 10 Segment Internal circuit schematic Selection guide Emitting color Yellow Red Orange Green (NRND) Common LAP-401VD LAP-401DD LAP-401YD LAP-401MD Anode LAP-401VN LAP-401DN LAP-401YN LAP-401MN Cathode www.rohm.com 2007 ROHM Co., Ltd. All rights reserved. 2018.05 - Rev.C 1/5Datasheet LAP-401 D / N Series Absolute maximum ratings (T = 25C) a Yellow Red Orange Green (NRND) Parameter Symbol Unit LAP-401VD / VN LAP-401DD / DN LAP-401YD / YN LAP-401MD / MN Power dissipation P 448 448 448 448 mW D P / seg Power dissipation 56 56 56 56 mW D I Forward current 20 20 20 20 mA F 1 1 1 1 Peak forward current I mA FP 60 * 60 * 60 * 60 * V Reverse voltage 5 5 5 5 V R Operating temperature T C 25 to 75 opr Storage temperature T 30 to 85 C stg 1 * Pulse width 1ms, duty 1 / 5 Electrical and optical characteristics (T = 25C) a Yellow Red Orange Green (NRND) Parameter Symbol Conditions Unit Typ. Max. Typ. Max. Typ. Max. Typ. Max. V I =10mA 1.9 2.6 1.9 2.6 1.9 2.6 1.9 2.6 V Forward voltage F F I V =3V Reverse current - 100 - 100 - 100 - 100 A R R I =10mA 650 - 605 - 590 - 572 - nm Peak wavelength p F Spectral line halfwidth I =10mA 20 - 20 - 20 - 20 - nm F Not designed for radiation resistance. www.rohm.com 2007 ROHM Co., Ltd. All rights reserved. 2018.05 - Rev.C 2/5