LB-303AK Series LED displays High efficiency, three-digit numeric displays LB-303AK Series !External dimensions (Units : mm) 22.0 7.0 7.0 1.0 3- φ 0.9 (9.2) φ 0.5 1.0 10° 8.0 13.0 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. 4.0 φ 0.5 (2.54) (12.7) Tolerances are ±0.3 unless otherwise noted: !Selection guide Emitting color Red Orange Green Anode LB-303VA LB-303DA∗ LB-303MA Cathode LB-303VK LB-303DK∗ LB-303MK Common ∗Order-based production. !Pin assignments 11 + 10 + 9 + a f d Digit 1 + Pin No. 1 7 + a b g e 8 + c D.P1 + 2 f e a b g d Digit 2 + 3 c f e D.P2 + 4 b g d Digit 3 + 5 c D.P3 + 6 5.0±0.5 5.0 !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, orange and green. 4) The package surface is painted black and the segments are colored the display color. Pin No. Function 1 2 3 4 5 6 7 8 9 10 11 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" LB-303AK Series LED displays !Internal circuit schematic (example of common anode) a 9 b 7 c 1 d 3 e 10 f 8 g D.P 11 6 2 Dig.1 4 Dig.2 5 Dig.3 !Absolute maximum ratings (Ta = 25°C) Parameter Symbol Red Orange Green LB-303VA / VK LB-303DA / DK LB-303MA / MK Unit Power dissipation PD 960 960 1440 mW Power dissipation PD / seg 40 40 60 mW Forward current IF 15 15 20 mA Peak forward current IFP 60∗ 60∗ 60∗ mA VR 3 3 3 Reverse voltage V Operating temperature Topr −25~+75 °C Storage temperature Tstg −30~+85 °C ∗ Pulse width 1ms duty 1 / 5 ! Electrical and optical characteristics (Ta = 25°C) Parameter Symbol Conditions Red Min. Orange Typ. Max. Min. Green Typ. Max. Min. Typ. Max. Unit Forward voltage VF IF = 10mA − 2.0 2.8 − 2.0 2.8 − 2.1 2.8 V Reverse current IR VR = 3V − − 100 − − 100 − − 100 µA Peak wavelength λP IF = 10mA − 650 − − 610 − − 563 − nm Spectral line half width ∆λ IF = 10mA − 40 − − 40 − − 40 − nm Not designed for radiation resistance. ! Luminous intensity Color Red λP 650 Type LB-303VA Min. Typ. Max. Unit 1.4 4.0 − mcd 1.4 4.0 − mcd 2.2 6.3 − mcd LB-303VK Orange 610 Green 563 LB-303DA LB-303DK LB-303MA Note : Measured at IF = 10mA LB-303MK