LF-301MK

LF-301 A / K Series LED displays Single Digit Surface Mount LED Numeric Display LF-301 A / K Series LF-301 A / K series of Single Digit Surface Mount LED Numeric Display which the height of a letter 8mm have ROHM original structure that realizes re-flow soldering. Dimensions (Unit : mm) Pin No.10 6.8 PIN No.6 P1.27×4=5.08 10-0.4 10˚ 5±0.5 0.2 (1) Features 1) Re-flow soldering ∗ 2) Pb-free availabe 3) Automatic mounting with taping pack ∗Number of re-flow process shall be recommend 1 time by our re-flow condition. (1) 13 11 8 1 φ0.8 (1) Pin No.1 1 4 2.5 PIN No.5 Selection guide Emitting color Common Anode Cathode Red LF-301VA LF-301VK Green LF-301MA LF-301MK 02 Tolerance are ±0.3 unless otherwise noted: Pin assignments 10 9 ++ 8 + a f g e d + Pin No. 1 + 2 + 3 + 4 D.P + 5 c b 7 + 6 + Pin No. 1 2 3 4 5 6 7 8 9 10 Function Segment "e" Segment "d" Common Segment "c" D.P Segment "b" Segment "a" Common Segment "f" Segment "g" Equivalent circuit (anode common) Common 83 (cathode common) Common 83 Segment a b c d e f g D.P PIN No. 7 6 4 2 1 9 10 5 Segment a b c d e f g D.P PIN No. 7 6 4 2 1 9 10 5 Rev.B (1) 5 1/3 LF-301 A / K Series LED displays Absolute maximum ratings (Ta=25°C) Parameter Symbol Red Green LF-301VA / VK LF-301MA / MK 320 480 40 60 15 20 ∗ 60 60 5 5 −25 to +75 −30 to +85 Unit mW mW mA mA V ˚C ˚C Power dissipation Power dissipation Forward current Peak forward current Reverse voltage Operating temperature Storage temperature ∗Pulse width 1ms Duty 1 / 5 PD PD / seg IF IFP VR Topr Tstg ∗ Electrical characteristics (Ta=25°C) Parameter Forward voltage Reverse current Peak wavelength Spectral line half width Symbol Conditions Red Green VF IR λP ∆λ IF=10mA VR=3V IF=10mA IF=10mA Typ. 2.0 − 650 40 Max. 2.8 100 − − Typ. 2.1 − 563 40 Max. 2.8 100 − − Unit V µA nm nm The products are not radiations resistant. Luminous intensity Color Red Green λP (nm) 650 563 Type LF-301VA LF-301VK LF-301MA LF-301MK Min. 3.6 3.6 Typ. 10 10 Unit mcd mcd Rev.B 2/3 LF-301 A / K Series LED displays Electrical and optical characteristic curves 100 Ta=25°C 10.00 10 Relative Luminous Intensity Forward Current:IF(mA) LF-301MA LF-301MK LF-301VA LF-301VK Ta=25°C 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 ) 10 LF-301MA LF-301MK 1.2 1 0.8 0.6 0.4 -25 -15 -5 ( 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% LF-301VA LF-301VK 500Hz 200Hz 100Hz 50kHz 20kHz 10kHz 100% 80% 60% 40% 20% 0% -25 -15 -5 ( 5kHz 2kHz 1kHz 1 1 Forward Current (%) 10 100 1000 10000 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 Rev.B 3/3 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