LB-303AK Series LED displays High efficiency, three-digit numeric displays LB-303AK Series zDimensions (Unit : 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) 5.0±0.5 5.0 zFeatures 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. Tolerances are ±0.3 unless otherwise noted: zSelection guide Emitting color Red Orange Green Anode LB-303VA LB-303DA∗ LB-303MA Cathode LB-303VK LB-303DK∗ LB-303MK Common ∗Order-based production. zPin assignments 11 10 9 8 7 + + + a + + a f e b g c d 1 2 b g e Digit 1 D.P1 + + Pin No. f a c d f e b g d c Digit 2 D.P2 Digit 3 D.P3 + + + + 3 4 5 6 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" Rev.A 1/2 LB-303AK Series LED displays zInternal 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 zAbsolute 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 Reverse voltage VR 3 3 3 V Operating temperature Topr −25 to +75 °C Storage temperature Tstg −30 to +85 °C ∗ Pulse width 1ms duty 1 / 5 z 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. z 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 LB-303MK Note : Measured at IF = 10mA Rev.A 2/2 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.1