BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BM-40258MD
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1. 2. 3. 4. 5. 6. 7. 8. 9.
Features :
4.78 inch (121.50mm) matrix height. Dot size 10.0 mm. Low power requirement. Excellent characters appearance. Solid state reliability. Multiplex drive , column anode com. and row cathode com. Single color available. Categorized for luminous intensity. Stackable vertically and horizontally.
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Package Dimensions :
121.50(4.783)
91.40(3.598)
PIN 1.
+
75.80(2.984)
10.0(.394)
13.30(.524) 0.80(.031) 6.1±0.5(.240±020) 5.08x6=30.48(1.200)
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1. 2. 3. 4.
Description :
The BM-40258MD is a 121.5mm (4.78") matrix height 5×8 dot matrix display. This product use green chips, which are made from GaP on GaP substrate. This product have a black face and white dots. This product doesn't contain restriction substance, comply ROHS standard. Notes: 1. All dimensions are in millimeters(inches). 2. Tolerance is ±0.25mm(.01")unless otherwise specified. 3. Specifications are subject to change without notice.
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Internal Circuit Diagram :
佰鴻工業股份有限公司 http://www.brtled.com
Ver.1.0 Page 1 of 3
BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BM-40258MD
●
Absolute Maximum Ratings(Ta=25℃) Parameter
Power Dissipation Per Dot Forward Current Per Dot Peak Forward Current Per Dot Reverse Voltage Per Dot Operating Temperature Storage Temperature Soldering Temperature (1/16" From Body)
Symbol
Pd IF IFP (Duty 1/10, 1KHZ) VR Topr Tstg Tsol
Rating
160 30 150 5 -40℃~80℃ -40℃~85℃ 260℃ For 5 Seconds
Unit
mW mA mA V -
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Electrical And Optical Characteristics(Ta=25℃) Parameter
Forward Voltage Per Dot Luminous Intensity Per Dot Reverse Current Per Dot Peak Wave Length
Symbol Condition
VF Iv IR IF=10mA IF=10mA VR=5V
Min.
-
Typ.
4.2 12.0 -
Max.
5.0 100 -
Unit
V mcd µA nm nm nm
Dominant Wave Length
Spectral Line Half-width
佰鴻工業股份有限公司 http://www.brtled.com
λp IF=10mA 568 λd IF=10mA 569 ∆λ IF=10mA 30 -
574
Ver.1.0 Page 2 of 3
BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BM-40258MD
●
Typical Electro-Optical Characteristics Curves
(25℃ Ambient Temperature Unless Otherwise Noted)
Fig.1 Relative Radiant Intensity VS. Wavelength
1.0
Relative Radiant Intensity
0.5
0 460
490
520
Wavelength(nm)
550
580
610
640
Relative Luminous Intensity (@20mA)
1 2 3 4 5
50
Fig.2 Forward Current VS. Forward Voltage
3.0 2.5 2.0 1.5 1.0 0.5
Fig.3 Relative Luminous Intensity VS. Ambient Temperature
Forward Current (mA)
40 30 20 10 0
Forward Voltage (V) Fig.4 Relative Luminous Intensity VS. Forward Current
0 -40
Ambient Temperature Ta( C) Fig.5 Forward Current Derating Curve VS. Ambient Temperature
-20
0
20
40
60
Relative Luminous Intensity (@20mA)
3.0
50 40 30
2.0
佰鴻工業股份有限公司 http://www.brtled.com
20 1.0 10 0 0.0 0 10 20 30 40 50 20 40 60 80
Forward Current(mA)
100 120
Forward Current(mA)
Ambient Temperature Ta( C)
Ver.1.0 Page 3 of 3
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