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LA-301 B / L Series
LED displays
Single Digit LED Numeric Display
LA-301 B / L Series
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. External dimensions (Unit : mm)
7.0 10
1.0
Features 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.
0.5 +0.1 0
1.0 4.0
0.8
(5.3)
Selection guide
Emitting color Common Anode Cathode Red LA-301VB LA-301VL
Orange Yellow Red (High brightness) (High brightness) (High brightness)
LA-301AB LA-301AL
3.80.5
0.25 +0.1 0
5.0
Tolerance are 0.3 unless otherwise noted:
Green LA-301MB LA-301ML
Blue LA-301BB LA-301BL
LA-301EB LA-301EL
LA-301XB LA-301XL
Pin assignments
Pin No. 1+ 2+ 3+ 4+ 5+ e d D.P f g c a b + 10 +9 +8 +7 +6
Pin No. 1 2 3 4 5 6 7 8 9 10
Function Segment "a" Segment "f" Segment "g" Segment "e" Segment "d" D.P Cathode D.P Anode Segment "c" Common Segment "b"
Equivalent circuit (anode common)
COM 9 7
(cathode common)
COM 9 7
abcdefg 1 10 8 5 4 2 3
D.P 6
abcdefg 1 10 8 5 4 2 3
D.P 6
Rev.B
(2.0)
(8.0)
11.0
8.0
1/2
LA-301 B / L Series
LED displays
Absolute maximum ratings (Ta=25C)
Parameter Power dissipation Power dissipation Forward current Peak forward current Reverse voltage Operating temperature Storage temperature
1 Pulse width 1ms Duty 1 / 5 2 Pulse width 0.1ms Duty 1 / 10
Symbol
PD PD / seg IF IFP VR Topr Tstg
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
Electrical characteristics (Ta=25C)
Parameter Forward voltage Reverse current Peak wavelength Spectral line half width Symbol Conditions
VF IR P
IF=10mA VR=3V IF=10mA IF=10mA
Orange Yellow Red (High brightness) (High brightness) (High brightness) Typ. Max. Typ. Max. Max. Typ. Max. Typ. 2.05 2.6 2.05 2.6 2.05 2.6 2.0 2.8 100 100 100 100 - - - - 589 610 626 650 - - - - 15 17 18 40 - - - -
Red
Green
Blue
Unit
Typ. Max. Typ. Max. 3.6 4.2 2.1 2.8 100 100 - - 470 563 - - 26 40 - -
V A nm nm
Shows the number on the condition of IF=20mA.
The products are not radiations resistant.
Luminous intensity
Color
Red Red (High brightness) Orange (High brightness) Yellow (High brightness) Green Blue
P (nm)
650
626
610
589
563
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. 3.6
Typ. 10
Unit 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.B
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

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