LA-301 B / L Series LED displays Single Digit LED Numeric Display LA-301 B / L Series zDimensions (Unit : mm) 7.0 10˚ (2.0) φ0.8 5.0 1.0 4.0 0.5 +0.1 0 8.0 11.0 zFeatures 1) The height of a letter is 8mm. 2) The light don’t leak from the segment in spite of the small package. 3) The package of surface color is black. Color of segment is colored in emitting color. (Blue color is only milky white) 4) Each color has anode common and cathode common respectively. (8.0) 1.0 LA-301 B / L series is developed because of the demand for small single digit LED Numeric Display. Materials of emission are GaAsP on GaP, AlGalnP, GaP and GaN. This is the height of a letter 8mm, single digit LED Numeric Display that is packed by epoxy resin. 3.8±0.5 0.25 +0.1 0 (5.3) Tolerance are ±0.3 unless otherwise noted: zSelection guide Emitting color Red Common Anode Cathode Red Orange Yellow (High brightness) (High brightness) (High brightness) LA-301VB LA-301VL LA-301AB LA-301AL zPin assignments 1 + 1 2 3 4 5 6 7 8 9 10 + 10 a 2 + f b 3 + 5 + LA-301XB LA-301XL Pin No. Pin No. 4 + LA-301EB LA-301EL e + 9 + 8 g + 7 c + 6 d D.P zEquivalent circuit (anode common) Green Blue LA-301MB LA-301ML LA-301BB LA-301BL Function Segment "a" Segment "f" Segment "g" Segment "e" Segment "d" D.P Cathode D.P Anode Segment "c" Common Segment "b" (cathode common) COM 9 7 COM 9 7 a b c d e f g 1 10 8 5 4 2 3 D.P 6 a b c d e f g 1 10 8 5 4 2 3 D.P 6 Rev.C 1/4 LA-301 B / L Series LED displays zAbsolute maximum ratings (Ta=25°C) Symbol Parameter PD PD / seg IF IFP VR Topr Tstg Power dissipation Power dissipation Forward current Peak forward current Reverse voltage Operating temperature Storage temperature Orange Yellow Red Blue Green (High brightness) (High brightness) (High brightness) LA-301VB / VL LA-301AB / AL LA-301EB / EL LA-301XB / XL LA-301MB / ML LA-301BB / BL 480 336 320 520 520 520 60 42 40 65 65 65 20 10 15 25 25 25 60 ∗1 50 ∗2 60 ∗1 50 ∗2 50 ∗2 50 ∗2 5 5 5 5 5 5 −25 to +75 −30 to +85 Red Unit mW mW mA mA V ˚C ˚C ∗1 Pulse width 1ms Duty 1 / 5 ∗2 Pulse width 0.1ms Duty 1 / 10 zElectrical characteristics (Ta=25°C) Parameter Symbol Conditions Forward voltage Reverse current Peak wavelength Spectral line half width IF=10mA VR=3V IF=10mA IF=10mA VF IR λP ∆λ Orange Yellow Red (High brightness) (High brightness) (High brightness) Typ. Max. Typ. Max. Typ. Max. Typ. Max. 2.0 2.8 2.05 ∗ 2.6 ∗ 2.05 ∗ 2.6 ∗ 2.05 ∗ 2.6 ∗ 100 100 100 100 − − − − 650 626 ∗ 610 ∗ 589 ∗ − − − − 40 18 ∗ 17 ∗ 15 ∗ − − − − Red Green Blue Typ. Max. Typ. Max. 2.1 2.8 3.6 4.2 100 100 − − 563 470 − − 40 26 − − Unit V µA nm nm The products are not radiations resistant. ∗ Shows the number on the condition of IF=20mA. zLuminous intensity Color λP (nm) Red 650 Red (High brightness) 626 Orange (High brightness) 610 Yellow (High brightness) 589 Green 563 Blue 470 Type LA-301VB LA-301VL LA-301AB LA-301AL LA-301EB LA-301EL LA-301XB LA-301XL LA-301MB LA-301ML LA-301BB LA-301BL Min. Typ. Unit 3.6 10 mcd 36 90 mcd 36 90 mcd 36 90 mcd 3.6 10 mcd 14 56 mcd A condition of measurement is IF=10mA. Rev.C 2/4 LA-301 B / L Series LED displays zElectrical and optical characteristic curve 10.00 Ta=25°C LA-301BB LA-301BL LA-301XB LA-301XL LA-301EB LA-301EL LA-301AB LA-301AL LA-301MB LA-301ML LA-301VB LA-301VL 10 1 4 0.10 0.01 5 1 10 Fig.2 Relative Luminous Intensity - Forward Current 1.2 1 0.8 0.6 15 25 35 45 55 65 75 1 1 ) 100Hz 10000 10000 10 30Hz 100Hz 300Hz 30kHz 100kHz ( LA-301MB LA-301ML 300kHz 100Hz 200Hz 500Hz 2kHz 5kHz 10kHz 20kHz 50kHz 1kHz 1000 IF peak Max. Ratio of Maximum Tolerable peak IF Max. Current to Maximum Forward Current ) ( IF peak Max. Ratio of Maximum Tolerance Peak IF Max. Current to Maximum Tolerance DC Current LA-301XB LA-301XL LA-301EB LA-301EL LA-301AB LA-301AL 100 1000 Fig.4 Ratio of Maximum Tolerable Peak Current - Pulse Duration ( Ι ) 10 10 100 Pulse Duration tw(µs) Fig.3 Relative Luminous Intensity - Case Temperature 1 200Hz 10 Case Temparature (°C) 1 500Hz 2kHz 5kHz 5 1kHz 5 LA-301BB LA-301BL 10kHz Relative Luminous Intensity 1.4 10 20kHz LA-301BB LA-301BL LA-301XB LA-301XL LA-301EB LA-301EL LA-301AB LA-301AL LA-301MB LA-301ML LA-301VB LA-301VL 50kHz IF=10mA ( 1.6 IF peak Max. Ratio of Maximum Tolerance Peak IF Max. Current to Maximum Tolerance DC Current ) Fig.1 Forward Current - Forward Voltage 0.4 -25 -15 -5 100 Forward Current:IF(mA) Forward Voltage:VF(V) 3kHz 3 LA-301BB LA-301BL LA-301XB LA-301XL LA-301EB LA-301EL LA-301AB LA-301AL LA-301MB LA-301ML LA-301VB LA-301VL 1.00 1kHz 2 Ta=25°C 10kHz 0.1 1 Relative Luminous Intensity Forward Current:IF(mA) 100 1 1 10 100 1000 10000 100000 Pulse Duration : Tw (µs) Pulse Duration : tw(µs) Fig.5 Ratio of Maximum Tolerable Peak Current - Pulse Duration ( ΙΙ ) Fig.6 Ratio of Maximum Tolerable Peak Current - Pulse Duration ( ΙΙΙ ) Rev.C 3/4 LA-301 B / L Series 120% 10 100% Forward Current (%) 100Hz 200Hz 500Hz 1kHz 2kHz 5kHz 10kHz 50kHz 20kHz LA-301VB LA-301VL ( IF peak Max. Ratio of Maximum Tolerable peak IF Max. Current to Maximum Forward Current ) LED displays 80% 60% 40% 20% 1 1 10 100 1000 10000 Pulse Duration : tw(µs) Fig.7 Ratio of Maximum Tolerable Peak Current - Pulse Duration ( ΙV ) 0% -25 -15 -5 5 15 25 35 45 55 65 75 85 Ambient Temperature(°C) Fig.8 Derating Rev.C 4/4 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 which 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. It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the NOTES specified in this catalog. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact your nearest sales office. ROHM Customer Support System www.rohm.com Copyright © 2008 ROHM CO.,LTD. THE AMERICAS / EUROPE / ASIA / JAPAN Contact us : webmaster@ rohm.co. jp 21 Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan TEL : +81-75-311-2121 FAX : +81-75-315-0172 Appendix1-Rev2.0