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參數(shù)資料
| 型號： | IPD2548A |
| 元件分類： | 顯示用LED |
| 英文描述： | 5X7 DOT MATRIX DISPLAY, YELLOW, 6.4 mm |
| 封裝： | ROHS COMPLIANT, HERMETIC SEALED, CERAMIC PACKAGE-20 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 869K |
| 代理商： | IPD2548A |
2006-03-03
4
IPD2545A, IPD2547A, IPD2548A
Optical Characteristics
Notes:
1)
The displays are categorized for luminous intensity with the intensity category designated by a letter code on the
bottom of the package.
2)
Dominant wavelength
λ
dom is derived from the CIE chromaticity diagram and represents the single wavelength
which defines the
color of the device.
3)
The luminous stearance of the LED may be calculated using the following relationships.
L
V (cd/m
2) = I
V (Candela) /A (Meter)
2
L
V (Footlamberts) = π IV (Candela) /A (Foot)
2
A=8.4 x 10
–7 ft2, 7.8 x 10–8 m2
4)
All typical values specified at V
CC=5.0 V and TA=25°C unless otherwise noted.
High Efficiency Red IPD2545A
Description
Symbol
Min.
Typ.
4)
Units
Test Conditions
Peak Luminous Intensity per LED
1) 3)
(Character Average)
I
V ave
75
150
cd
V
CC=5.0 V, # sign ’’ON’’ on all
digits at full brightness,
T
A=25°C
Peak Wavelength
λ
peak
—
635
nm
—
Dominant Wavelength
2)
λ
dom
—
626
nm
—
Green IPD2547A
Description
Symbol
Min.
Typ.
4)
Units
Test Conditions
Peak Luminous Intensity per LED
1) 3)
(Character Average)
IV ave
75
150
cd
V
CC=5.0 V, # sign ’’ON’’ on all
digits at full brightness,
T
A=25°C
Peak Wavelength
λ
peak
—
568
nm
—
Dominant Wavelength
2)
λ
dom
—
574
nm
—
Yellow IPD2548A
Description
Symbol
Min.
Typ.
4)
Units
Test Conditions
Peak Luminous Intensity per LED
1) 3)
(Character Average)
IV ave
75
150
cd
V
CC=5.0 V, # sign ’’ON’’ on all
digits at full brightness,
T
A=25°C
Peak Wavelength
λ
peak
—
585
nm
—
Dominant Wavelength
2)
λ
dom
—
590
nm
—
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