BRIGHT BM

BRIGHT LED ELECTRONICS CORP.
BM-11457ND
SINCE 1981
1.252 inch (31.80mm) matrix height.
2.
Dot size 3.0mm.
3.
Low power requirement.
4.
Excellent characters appearance.
5.
Solid state reliability.
6.
Multiplex drive , column cathode com.
Package Dimensions :
4.57x4=18.28(.720)
PIN 1.
and row anode com.
7.
Single color available.
8.
Categorized for luminous intensity.
9.
Stackable vertically and horizontally.
22.86(.900)
1.
●
31.80(1.252)
Features :
4.57x6=27.42(1.080)
●
+
22.75(.896)
3.0x35
(.118x35)
8.00(.315)
3.0(.118)MIN
0.50(.020)
2.54x6=15.24(.600)
●
1.
Description :
The BM-11457ND is a 31.8mm(1.252")
matrix height 5×7 dot matrix display.
2.
This product use hi-eff red chips, which
are made from GaAsP on GaP substrate.
3.
This product have a black face and
white dots.
4.
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.
This product doesn't contain restriction
substance, comply ROHS standard.
●
Internal Circuit Diagram :
Ver.2.0 Page 1 of 3
BRIGHT LED ELECTRONICS CORP.
BM-11457ND
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
-
1.9
2.5
V
Luminous Intensity Per Dot
Iv
IF=10mA
-
9.0
-
mcd
Reverse Current Per Dot
IR
VR=5V
-
-
100
µA
Peak Wave Length
λp
IF=10mA
-
640
-
nm
Dominant Wave Length
λd
IF=10mA
626
-
636
nm
Spectral Line Half-width
∆λ
IF=10mA
-
40
-
nm
Ver.2.0 Page 2 of 3
BRIGHT LED ELECTRONICS CORP.
BM-11457ND
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
560
590
620
Fig.2 Forward Current VS.
Forward Voltage
40
30
20
10
0
650
Wavelength(nm)
Relative Luminous Intensity
(@20mA)
Forward Current (mA)
50
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
710
740
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
680
-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
0
20
40
60
80
100 120
Ambient Temperature Ta( C)
Ver.2.0 Page 3 of 3