BRIGHT BT

BRIGHT LED ELECTRONICS CORP.
BT-M556RD
SINCE 1981
●
Features :
1.
0.56 inch (14.20mm) Digit Height.
2.
Continuous uniform segments.
3.
Low power requirement.
4.
Excellent characters appearance.
5.
Solid state reliability.
6.
Categorized for luminous intensity.
7.
Multiplex drive common anode.
●
1.
The BT-M556RD is a 14.20 mm (0.56")
This product use super red chips, which
are made from AlGaAs on GaAs
substrate.
3.
Package Dimensions :
Description :
high three digit seven segments display.
2.
●
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 segments.
4.
This product doesn't contain restriction
substance, comply ROHS standard.
●
Internal Circuit Diagram :
Ver.2.0 Page 1 of 3
BRIGHT LED ELECTRONICS CORP.
BT-M556RD
SINCE 1981
●
Absolute Maximum Ratings(Ta=25℃)
Parameter
Symbol
Rating
Unit
Power Dissipation Per Segment
Pd
80
mW
Forward Current Per Segment
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 Segment
Reverse Voltage Per Segment
●
Electrical And Optical Characteristics(Ta=25℃)
Parameter
Symbol Condition
Min.
Typ.
Max.
Unit
Forward Voltage Per Segment
Vf
IF=10mA
-
1.7
2.5
V
Luminous Intensity Per Segment
Iv
IF=10mA
-
6.0
-
mcd
Reverse Current Per Segment
IR
VR=5V
-
-
100
µA
Peak Wave Length
λp
IF=10mA
-
660
-
nm
Dominant Wave Length
λd
IF=10mA
638
-
648
nm
Spectral Line Half-width
∆λ
IF=10mA
-
20
-
nm
Ver.2.0 Page 2 of 3
BRIGHT LED ELECTRONICS CORP.
BT-M556RD
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
570
630
600
Fig.2 Forward Current VS.
Forward Voltage
40
30
20
10
0
660
Wavelength(nm)
Relative Luminous Intensity
(@20mA)
Forward Current (mA)
50
1
2
3
4
5
Fig.4 Relative Luminous
Intensity VS.
Forward Current
2.0
1.0
0.0
10
20
30
40
Forward Current(mA)
3.0
50
720
750
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
690
-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.2.0 Page 3 of 3