BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BM-10257MD
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1.
2.
3.
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6.
Features :
1.54 inch (39.10mm) matrix height.
Dot size 3.0 mm.
Low power requirement.
Excellent characters appearance.
Solid state reliability.
Multiplex drive , column anode com.
and row cathode com.
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Package Dimensions :
39.10(1.539)
33.00(1.299)
+
PIN 1.
22.30(.878)
3.0(.118)
7.
8.
9.
Single color available.
Categorized for luminous intensity.
Stackable vertically and horizontally.
0.50(.02)
7.90(.311)
3.0(.118) MIN.
2.54x6=15.24(.600)
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Description :
The BM-10257MD is a 39.10mm (1.54")
matrix height 5×7 dot matrix display.
This product use green chips, which
are made from GaP on GaP substrate.
This product have a black face and
white dots.
Notes:
1. All dimensions are in millimeters(inches).
2. Tolerance is ±0.25mm(.01")unless otherwise
specified.
3. Specifications are subject to change without
notice.
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Internal Circuit Diagram :
Ver.1.0 Page 1 of 3
BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BM-10257MD
●
Absolute Maximum Ratings(Ta=25℃)
Parameter
Power Dissipation Per Dot
Forward Current Per Dot
Peak Forward Current Per Dot
Reverse Voltage Per Dot
Operating Temperature
Storage Temperature
Soldering Temperature
(1/16" From Body)
Symbol
Pd
I
F
I
FP
(Duty 1/10, 1KHZ)
V
R
Topr
Tstg
Tsol
Rating
80
30
150
5
-40℃~80℃
-40℃~85℃
260℃ For 5 Seconds
Unit
mW
mA
mA
V
-
-
-
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Electrical And Optical Characteristics(Ta=25℃)
Parameter
Forward Voltage Per Dot
Luminous Intensity Per Dot
Reverse Current Per Dot
Peak Wave Length
Dominant Wave Length
Spectral Line Half-width
Symbol Condition
V
F
Iv
I
R
λp
λd
∆λ
I
F
=10mA
I
F
=10mA
V
R
=5V
I
F
=10mA
I
F
=10mA
I
F
=10mA
Min.
-
-
-
-
569
-
Typ.
2.1
8.0
-
568
-
30
Max.
2.5
-
100
-
574
-
Unit
V
mcd
µA
nm
nm
nm
Ver.1.0 Page 2 of 3
BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BM-10257MD
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Typical Electro-Optical Characteristics Curves
(25℃ Ambient Temperature Unless Otherwise Noted)
Fig.1 Relative Radiant Intensity VS. Wavelength
1.0
Relative Radiant Intensity
0.5
0
460
490
520
Wavelength(nm)
550
580
610
640
Relative Luminous Intensity
(@20mA)
1
2
3
4
5
50
Fig.2 Forward Current VS.
Forward Voltage
3.0
2.5
2.0
1.5
1.0
0.5
Fig.3 Relative Luminous
Intensity VS.
Ambient Temperature
Forward Current (mA)
40
30
20
10
0
Forward Voltage (V)
Fig.4 Relative Luminous
Intensity VS.
Forward Current
0
-40
Ambient Temperature Ta( C)
Fig.5 Forward Current
Derating Curve VS.
Ambient Temperature
-20
0
20
40
60
Relative Luminous Intensity
(@20mA)
3.0
50
40
30
20
10
0
2.0
1.0
0.0
Forward Current(mA)
0
10
20
30
40
50
20
40
60
80
100 120
Forward Current(mA)
Ambient Temperature Ta( C)
Ver.1.0 Page 3 of 3
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