LF-301 A / K Series LED displays Single Digit Surface Mount LED Numeric Display LF-301 A / K Series zExternal dimensions (Unit : mm) 5±0.5 0.2 13 11 8 1 (1) zFeatures 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. 6.8 PIN No.6 P1.27×4=5.08 10-0.4 10˚ (1) Pin No.10 5 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. (1) (1) φ0.8 2.5 Pin No.1 PIN No.5 1 4 02 Tolerance are ±0.3 unless otherwise noted: zSelection guide Emitting color Common Anode Cathode Red Green LF-301VA LF-301VK LF-301MA LF-301MK zPin assignments Pin No. 10 9 + + 8 + 7 + 6 + a f b g e c d + Pin No. 1 + 2 + 3 + 4 D.P + 5 zEquivalent circuit (anode common) 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" (cathode common) Common Common 8 3 8 3 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.A 1/2 LF-301 A / K Series LED displays zAbsolute maximum ratings (Ta=25°C) Parameter Symbol Power dissipation Power dissipation Forward current Peak forward current Reverse voltage Operating temperature Storage temperature PD PD / seg IF IFP VR Topr Tstg 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 ∗Pulse width 1ms Duty 1 / 5 zElectrical characteristics (Ta=25°C) Symbol Conditions Parameter Forward voltage Reverse current Peak wavelength Spectral line half width VF IR λP ∆λ IF=10mA VR=3V IF=10mA IF=10mA Green Red Typ. 2.0 − 650 40 Typ. 2.1 − 563 40 Max. 2.8 100 − − Max. 2.8 100 − − Unit V µA nm nm The products are not radiations resistant. zLuminous intensity Color λP (nm) Red 650 Green 563 Type LF-301VA LF-301VK LF-301MA LF-301MK Min. Typ. Unit 3.6 10 mcd 3.6 10 mcd 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