
1257 red color LED dot matrix
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Basic Info
Place of Origin: | Guangdong, China (Mainland) |
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Product Description
Product Description
1257 red color LED dot matrix Features : 1)Industrial standard size. 2)Low power consumption. 3)Categorized for luminous intensity. 4)Pb free 5)The product itself will remain within RoHS compliant version Applications : 1)Audio equipment 2)Instrument panels 3)Digital read out display 4)indoor display package size :
Initial Electrical/Optical Characteristics (Ta=25°C)

Item | Symbol | condition | Min | Type | Max | Unit |
forward Voltage Per segment | VF | I=20mA | 1.8 | 2.3 | V | |
forward Voltage Per decimal point | ||||||
reverse Current | IR | V=5V | ---- | ---- | 100 | μA |
Chromaticity coordinates* | λ | I=20mA | 620 | 625 | nm | |
Spectrum Radiation Bandwidth | Δλ | I=20mA | ---- | 20 | ---- | Nm |
Luminous Intensity Per segment | IV | I=20mA | 30 | ---- | 50 | mcd |
Luminous Intensity Per decimal point | ||||||
50%Power Angle | 2θ1/2 | I=20mA | ---- | 120 | ---- | deg |
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