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  Datasheet File OCR Text:
 BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BL-BF331-AT
Features:
1. Chip material: AlGaAs/ AlGaAs 2. Emitted color : Super Red 3. Lens Appearance : Water Clear 4. Low power consumption. 5. High efficiency. 6. Versatile mounting on P.C. Board or panel. 7. Low current requirement. 8. 3mm diameter package. 9. This product don't contained restriction substance, compliance ROHS standard. Package dimensions:
Applications:
1. TV set 2. Monitor 3. Telephone 4. Computer 5. Circuit board
Notes: 1. All dimensions are in millimeters (inches). 2. Tolerance is 0.25mm (0.01") unless otherwise specified. 3. Lead spacing is measured where the leads emerge from the package. 4. Specifications are subject to change without notice.
Absolute Maximum Ratings(Ta=25)
Parameter Power Dissipation Forward Current Peak Forward Current*1 Reverse Voltage Operating Temperature Storage Temperature Soldering Temperature Symbol Pd IF IFP VR Topr Tstg Tsol Rating 80 30 150 5 -40~80 -40~85 260(for 5 seconds) Unit mW mA mA V
*1Condition for IFP is pulse of 1/10 duty and 0.1msec width. Ver.1.0 Page: 1 of 3
BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BL-BF331-AT
Unit V mcd
Electrical and optical characteristics(Ta=25)
Parameter Forward Voltage Luminous Intensity Symbol VF Iv IR p d 21/2 Condition IF=20mA IF=20mA VR=5V IF=20mA IF=20mA IF=20mA IF=20mA Min. Typ. 2.1 500 660 643 20 25 Max. 2.6 100 -
Reverse Current
Peak Wave Length Dominant Wave Length Spectral Line Half-width Viewing Angle
A
nm nm nm deg
Typical electro-optical characteristics curves
Fig.1 Relative intensity vs. Wavelength
1.0 60
Fig.2 Forward current derating curve vs. Ambient temperature
50
Relative radiant intensity
Forward current(mA)
40
0.5
30
20
10
0
610
660
710
0
20
40
60
80
100
Wavelength (nm)
Ambient temperature Ta()
Fig.3 Forward current vs. Forward voltage
50 3.0
Fig.4 Relative luminous intensity vs. Ambient temperature
40
Relative luminous intensity
1 2 3 4 5
2.5
Forward current(mA)
2.0
30
1.5
20
1.0
10
0.5
0
0 -40
-20
0
20
40
60
Forward voltage(V)
Ambient temperature Ta()
Fig.5 Relative luminous intensity vs. Forward current
2.0
Fig.6 Radiation diagram
0 10 20 30
Relative luminous intensity(@20mA)
1.5
Relative radiant intensity
1.0
40
1.0
0.9 0.8
50 60 70
0.5
0.7
80 90
0
10
20
30
40
50
0.5
0.3
0.1
0.2
0.4
0.6
Forward current (mA)
Ver.1.0 Page: 2 of 3
BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BL-BF331-AT
Bin Limits 1. Intensity Bin Limits (At IF= 20mA)
Bin Code
S T U V W
Min. (mcd)
180 250 410 620 930
Max. (mcd)
360 550 820 1230 1840
Bin x
Intensity bin code
Ver.1.0 Page: 3 of 3


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