BRIGHT BL

BRIGHT LED ELECTRONICS CORP.
BL-B51V1T
SINCE 1981
● Features:
● Package dimensions
1. Chip material: GaP/GaP
3.55(.140)
2. Emitted color : Bright Red
2.90(.114)
3. Lens Appearance : Red Trans
4. Low power consumption.
5.20(.205)
1.0(.039)
5. High efficiency.
6. Versatile mounting on P.C. Board or panel.
7. Low current requirement.
1.5(.059)
MAX.
25.4(1.0) MIN.
9. This product don’t contained restriction
CATHODE
8. 2.9mm diameter package.
0.5(.02)
SQ. TYP.
substance, compliance ROHS standard.
3.86(.152)
1.0(.04) MIN.
2.54(.10)
NOM.
● Applications:
Notes:
1. TV set
1. All dimensions are in millimeters (inches).
2. Monitor
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.
3. Telephone
4. Computer
5. Circuit board
● Absolute Maximum Ratings(Ta=25℃)
Parameter
Symbol
Rating
Unit
Power Dissipation
Pd
40
mW
Forward Current
IF
15
mA
Peak Forward Current*1
IFP
50
mA
Reverse Voltage
VR
5
V
Operating Temperature
Topr
-40℃~80℃
Storage Temperature
Tstg
-40℃~85℃
Soldering Temperature
Tsol
260℃(for 5 seconds)
1
* Condition for IFP is pulse of 1/10 duty and 0.1msec width.
Ver.1.0 Page: 1 of 2
BRIGHT LED ELECTRONICS CORP.
BL-B51V1T
SINCE 1981
● Electrical and optical characteristics(Ta=25℃)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Forward Voltage
VF
IF=20mA
-
2.2
2.6
V
Luminous Intensity
Iv
IF=20mA
-
6.0
-
mcd
Reverse Current
IR
VR=5V
-
-
100
µA
Peak Wave Length
λp
IF=20mA
-
700
-
nm
Dominant Wave Length
λd
IF=20mA
-
650
-
nm
Spectral Line Half-width
∆λ
IF=20mA
-
100
-
nm
Viewing Angle
2θ1/2
IF=20mA
-
35
-
deg
● Typical electro-optical characteristics curves
Fig.1 Relative intensity vs. Wavelength
Fig.2 Forward current derating curve
vs. Ambient temperature
1.0
60
Forward current(mA)
Relative radiant intensity
50
0.5
40
30
20
10
0
600
700
0
800
20
Wavelength λ(nm)
Fig.3 Forward current vs. Forward voltage
Relative luminous intensity
Forward current(mA)
80
100
3.0
40
30
20
10
1
2
3
4
2.5
2.0
1.5
1.0
0.5
0
-40
5
Forward voltage(V)
-20
0
40
20
60
Ambient temperature Ta(℃)
Fig.5 Relative luminous intensity
vs. Forward current
Fig.6 Radiation diagram
0
2.0
10
20
30
Relative radiant intensity
Relative luminous intensity(@20mA)
60
Fig.4 Relative luminous intensity
vs. Ambient temperature
50
0
40
Ambient temperature Ta(℃)
1.5
1.0
0.5
1.0
40
0.9
50
0.8
60
70
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)
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