BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BL-B4537N
●
Features:
1. Chip material: GaAsP/GaP
2. Emitted color : Hi-Eff Red
3. Lens Appearance : Red Diffused
4. Low power consumption.
5. High efficiency.
6. Versatile mounting on P.C. Board or panel.
7. Low current requirement.
9. This product don’t contained restriction
substance, compliance ROHS standard.
8. 4.8mm diameter package.
●
Package dimensions
4 .8 ( .1 8 9 )
8 .6 ( .3 3 9 )
1 .5 0 ( .0 5 9 )
M A X .
4 .8 ( . 1 8 9 )
2 5 . 4 (
1 .0 )
M I N .
C a th o d e
0 .5 ( .0 2 )
S Q . T Y P .
1 .0 ( .0 1 )
M I N .
2 . 5 4 ( . 1 0 )
N O M .
●
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
I
F
I
FP
V
R
Topr
Tstg
Tsol
Rating
80
30
150
5
-40
℃
~80
℃
-40
℃
~85
℃
260
℃
(for 5 seconds)
Unit
mW
mA
mA
V
-
-
-
*
1
Condition for I
FP
is pulse of 1/10 duty and 0.1msec width.
Ver.2.0 Page: 1 of 2
BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BL-B4537N
Unit
V
mcd
●
Electrical and optical characteristics(Ta=25℃)
Parameter
Forward Voltage
Luminous Intensity
Symbol
V
F
Iv
I
R
λp
λd
∆λ
2θ
1/2
Condition
I
F
=20mA
I
F
=20mA
V
R
=5V
I
F
=20mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
Min.
-
-
-
-
617
-
-
Typ.
2.1
65
-
640
-
40
45
Max.
2.6
-
100
-
638
-
-
Reverse Current
Peak Wave Length
Dominant Wave Length
Spectral Line Half-width
Viewing Angle
µA
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
540
640
740
0
20
40
60
80
100
Wavelength
λ(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
2.5
Forward current(mA)
2.0
30
1.5
20
1.0
10
0.5
0
1
2
3
4
5
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.2.0 Page: 2 of 2
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