LB-303MA

High efficiency, three-digit numeric displays LB-303AK Series The LB-303AK series were designed to meet the need for multi-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 three-digit displays with a character height of 8.0 mm. Features 1) Height of character : 8.0 mm 2) High efficiency in a compact package. 3) Common anode and common cathode configurations are available for red and green. 4) The package surface is painted black and the segments are colored the display color. Dimensions (Unit : mm) 22.0 7.0 7.0 10° 8.0 13.0 1.0 4.0 3- φ 0.9 (2.54) (12.7) 5.0±0.5 φ 0.5 5.0 Tolerances are ±0.3 unless otherwise noted: Selection guide Emitting color Common Anode Cathode Red LB-303VA LB-303VK Green LB-303MA LB-303MK Pin assignments Pin No. 11 + a f e g c b e f 10 + 9 + a g c 8 + 7 + a b e f g c b Function Segment "c" Digit 1 Common Segment "d" Digit 2 Common Digit 3 Common Segment D.P Segment "b" Segment "f" Segment "a" Segment "e" Segment "g" d d d Digit 1 D.P1 + + Pin No. 1 2 Digit 2 D.P2 Digit 3 D.P3 + + + + 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 www.rohm.com c ○ 2011 ROHM Co., Ltd. All rights reserved. φ 0.5 1/3 (9.2) 1.0 2011.04 - Rev.C LB-303AK Series Internal circuit schematic (example of common anode) a 9 b 7 c 1 d 3 e 10 f 8 g D.P 11 6 Data Sheet 2 Dig.1 4 Dig.2 5 Dig.3 Absolute maximum ratings (Ta = 25C) Red Parameter Power dissipation Power dissipation Forward current Peak forward current Reverse voltage Operating temperature Storage temperature Symbol PD PD / seg IF IFP VR Topr Tstg LB-303VA / VK 960 40 15 60∗ 3 −25 to +75 −30 to +85 Green LB-303MA / MK 1440 60 20 60∗ 3 Unit mW mW mA mA V °C °C ∗ Pulse width 1ms duty 1 / 5  Electrical and optical characteristics (Ta = 25C) Parameter Forward voltage Reverse current Peak wavelength Spectral line half width Symbol Conditions VF IR λP Δλ IF = 10mA VR = 3V IF = 10mA IF = 10mA Red − − − − − − − − Green Min. Typ. Max. Min. Typ. Max. 2.0 − 650 40 2.8 100 − − 2.1 − 563 40 2.8 100 − − Unit V μA nm nm Not designed for radiation resistance.  Luminous intensity Color Red λP 650 Type LB-303VA LB-303VK LB-303MA Green Note : Measured at IF = 10mA Min. 1.4 Typ. 4.0 Max. − − Unit mcd 563 LB-303MK 2.2 6.3 mcd www.rohm.com c ○ 2011 ROHM Co., Ltd. All rights reserved. 2/3 2011.04 - Rev.C LB-303AK Series Electrical and optical characteristic curves 100 Ta=25°C Data Sheet 10.00 Relative Luminous Intensity Forward Current:IF(mA) LB-303MA LB-303MK LB-303VA LB-303VK Ta=25°C 10 1.00 1 0.10 0.1 1 1.5 2 2.5 3 0.01 1 10 Forward Current:IF(mA) 100 Forward Voltage:VF(V) Fig.1 Forward Current - Forward Voltage Fig.2 Relative Luminous Intensity - Forward Current ) IF=10mA IF peak Max. Ratio of Maximum Tolerable peak IF Max. Current to Maximum Forward Current 1.6 1.4 Relative Luminous Intensity 1.2 1 0.8 0.6 0.4 -25 -15 -5 10 LB-303MA LB-303MK ( 100kHz 300Hz 100Hz 30kHz 10kHz 5 15 25 35 45 55 65 75 1 1 300kHz 10 100 1000 30Hz 3kHz 1kHz 10000 100000 Case Temparature (°C) Pulse Duration : tw(µs) Fig.3 Relative Luminous Intensity - Case Temperature Fig.4 Ratio of Maximum Tolerable Peak Current - Pulse Duration ( Ι ) IF peak Max. Ratio of Maximum Tolerable peak IF Max. Current to Maximum Forward Current 10 120% ) LB-303VA LB-303VK 500Hz 200Hz 100Hz 50kHz 20kHz 10kHz 100% 80% 60% 40% 20% ( 5kHz 2kHz 1kHz Forward Current (%) 1 1 10 100 1000 10000 0% -25 -15 -5 5 15 25 35 45 55 65 75 85 Ambient Temperature(°C) Pulse Duration : tw(µs) Fig.5 Ratio of Maximum Tolerable Peak Current - Pulse Duration ( ΙΙ ) Fig.6 Derating www.rohm.com c ○ 2011 ROHM Co., Ltd. All rights reserved. 3/3 2011.04 - Rev.C 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