High efficiency, single-digit numeric displays LA-501DN Series The LA-501DN series were designed to meet the need for 13mm single-digit numeric displays. These LED numeric displays use GaAsP on GaP for the emitting material (with the exception of green) and are housed in an epoxy resin package. They are single-digit displays with a character height of 13.0mm. Dimensions (Unit : mm) Features 1) Height of character: 13.0mm 2) Common anode and common cathode configurations are available for each color. 3) High-efficiency reflectors are used to achieve a bright, clear display. 4) The package surface is painted black and the segments are colored the display color. 12.5 φ1.25 (15.24) 0.25 1.25 13.0 17.5 1.25 10° 0.5 (2.54) (10.16) 3.5Min. 7.0 7.4 Tolerances are ±0.2 unless otherwise noted: Selection guide Emitting color Red Green Common Anode LA-501VD LA-501MD Cathode LA-501VN LA-501MN Pin assignments Pin No. 10 9 8 7 6 + + + + + a f b g e c d D.P + + + + + Pin No. 1 2 3 4 5 1 2 3 4 5 6 7 8 9 10 www.rohm.com c 2011 ROHM Co., Ltd. All rights reserved. ○ Function Segment "e" Segment "d" Common Segment "c" D.P Segment "b" Segment "a" Common Segment "f" Segment "g" 1/3 2011.04 - Rev.B LA-501DN Series Data Sheet Internal circuit schematic (example of common cathode) COM 3,8 a b c d e f g D.P 7 6 4 2 1 9 10 5 Absolute maximum ratings (Ta = 25C) Parameter Red Symbol Green Unit LA-501VD / VN LA-501MD / MN Power dissipation PD 480 480 mW Power dissipation PD / seg 60 60 mW 20 60∗ mA Forward current IF 20 Peak forward current IFP 60∗ VR 5 Reverse voltage mA 5 V Operating temperature Topr −25~+75 °C Storage temperature Tstg −30~+85 °C ∗ Pulse width 1ms duty 1 / 5 Electrical and optical characteristics (Ta = 25C) Red Symbol Conditions Parameter Min. VF Forward voltage Green Typ. Max. Min. Typ. Max. Unit IF = 10mA − 2.0 2.8 − 2.1 2.8 − 100 − − 100 μA V Reverse current IR VR = 5V − Peak wavelength λP IF = 10mA − 650 − − 563 − nm Spectral line half width Δλ IF = 10mA − 40 − − 40 − nm Not designed for radiation resistance. Luminous intensity Color Red λP 650 Type LA-501VD Min. Typ. Max. Unit 5.6 16 − mcd 5.6 16 − mcd LA-501VN Green 563 LA-501MD LA-501MN Note : Measured at IF = 10 mA www.rohm.com c 2011 ROHM Co., Ltd. All rights reserved. ○ 2/3 2011.04 - Rev.B LA-501DN Series Data Sheet Electrical and optical characteristic curves Ta=25°C 10.00 LA-501MD LA-501MN LA-501VD LA-501VN Relative Luminous Intensity 10 1 0.1 1 1.5 2 2.5 3 Ta=25°C 1.00 0.10 0.01 1 10 Forward Voltage:VF(V) Fig.1 Forward Current - Forward Voltage ) Fig.2 Relative Luminous Intensity - Forward Current IF peak Max. Ratio of Maximum Tolerable peak IF Max. Current to Maximum Forward Current 1.6 IF=10mA 10 0.8 0.6 0.4 -25 -15 -5 5 15 25 35 45 55 65 75 30Hz 100Hz 300Hz 1kHz 10kHz 30kHz 1 300kHz 1.2 100kHz ( 1.4 Relative Luminous Intensity 100 Forward Current:IF(mA) 3kHz Forward Current:IF(mA) 100 1 1 10 100 1000 10000 100000 Pulse Duration : tw(µs) Case Temparature (°C) Fig.4 Ratio of Maximum Tolerable Peak Current - Pulse Duration Fig.3 Relative Luminous Intensity - Case Temperature 120% Forward Current (%) 100% 80% 60% 40% 20% 0% -25 -15 -5 5 15 25 35 45 55 65 75 85 Ambient Temperature(°C) Fig.5 Derating www.rohm.com c 2011 ROHM Co., Ltd. All rights reserved. ○ 3/3 2011.04 - Rev.B Notice Notes Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us. ROHM Customer Support System http://www.rohm.com/contact/ www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. R1120A