BRIGHT BM

BRIGHT LED ELECTRONICS CORP.
BM-10257MD
SINCE 1981
●
Features :
1.
1.54 inch (39.10mm) matrix height.
2.
Dot size 3.0 mm.
3.
Low power requirement.
4.
Excellent characters appearance.
5.
Solid state reliability.
6.
Multiplex drive , column anode com.
and row cathode com.
7.
Single color available.
8.
Categorized for luminous intensity.
9.
Stackable vertically and horizontally.
●
Package Dimensions :
39.10(1.539)
33.00(1.299)
+
PIN 1.
22.30(.878)
3.0(.118)
7.90(.311)
0.50(.02)
3.0(.118) MIN.
2.54x6=15.24(.600)
●
1.
Description :
The BM-10257MD is a 39.10mm (1.54")
matrix height 5×7 dot matrix display.
2.
This product use green chips, which
are made from GaP on GaP substrate.
3.
This product have a black face and
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.
white dots.
●
Internal Circuit Diagram :
Ver.1.0 Page 1 of 3
BRIGHT LED ELECTRONICS CORP.
BM-10257MD
SINCE 1981
●
Absolute Maximum Ratings(Ta=25℃)
Parameter
Symbol
Rating
Unit
Power Dissipation Per Dot
Pd
80
mW
Forward Current Per Dot
IF
30
mA
IFP
(Duty 1/10, 1KHZ)
150
mA
VR
5
V
Operating Temperature
Topr
-40℃~80℃
-
Storage Temperature
Tstg
-40℃~85℃
-
Soldering Temperature
(1/16" From Body)
Tsol
260℃ For 5 Seconds
-
Peak Forward Current Per Dot
Reverse Voltage Per Dot
●
Electrical And Optical Characteristics(Ta=25℃)
Parameter
Symbol Condition
Min.
Typ.
Max.
Unit
Forward Voltage Per Dot
VF
IF=10mA
-
2.1
2.5
V
Luminous Intensity Per Dot
Iv
IF=10mA
-
8.0
-
mcd
Reverse Current Per Dot
IR
VR=5V
-
-
100
µA
Peak Wave Length
λp
IF=10mA
-
568
-
nm
Dominant Wave Length
λd
IF=10mA
569
-
574
nm
Spectral Line Half-width
∆λ
IF=10mA
-
30
-
nm
Ver.1.0 Page 2 of 3
BRIGHT LED ELECTRONICS CORP.
BM-10257MD
SINCE 1981
Typical Electro-Optical Characteristics Curves
(25℃ Ambient Temperature Unless Otherwise Noted)
Fig.1 Relative Radiant Intensity VS. Wavelength
Relative Radiant Intensity
1.0
0.5
0
460
490
520
550
Wavelength(nm)
Fig.2 Forward Current VS.
Forward Voltage
Relative Luminous Intensity
(@20mA)
Forward Current (mA)
50
40
30
20
10
0
1
2
3
4
5
Fig.4 Relative Luminous
Intensity VS.
Forward Current
2.0
1.0
0.0
0
10
20
30
40
Forward Current(mA)
3.0
50
610
640
Fig.3 Relative Luminous
Intensity VS.
Ambient Temperature
2.5
2.0
1.5
1.0
0.5
0
-40
50
Forward Current(mA)
3.0
580
-20
0
20
40
60
Ambient Temperature Ta( C)
Forward Voltage (V)
Relative Luminous Intensity
(@20mA)
●
Fig.5 Forward Current
Derating Curve VS.
Ambient Temperature
40
30
20
10
0
20
40
60
80
100 120
Ambient Temperature Ta( C)
Ver.1.0 Page 3 of 3