BRIGHT BQ

BRIGHT LED ELECTRONICS CORP.
BQ-M28DRD
SINCE 1981
●
Features :
●
Package Dimensions :
4.5(.177)
1.
0.28 inch (7.00mm) 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.
10
7.0(.275)
10.0(.394)
8.0(.315)
PIN 1.
1.0(.039)
32.1(1.63)
MARK
●
1.
XXXXX
0.50(.020)
5.8(.228)
6.7±0.5(.263±020)
2.54x5=12.70(.500)
Description :
The BQ-M28DRD is a 7.00mm (0.28")
Notes:
1. All dimensions are in millimeters(inches).
high four digit seven segments display.
2. Tolerance is ±0.25mm(.01")unless otherwise
2. This product use super red chips, which
specified.
are made from AlGaAs on GaAs substrate. 3. Specifications are subject to change without
notice.
3. This product have a black face and white
segments.
4.
●
This product doesn't contain restriction
substance, comply ROHS standard.
Internal Circuit Diagram :
佰鴻工業股份有限公司
http://www.brtled.com
Ver.1.0 Page 1 of 3
BRIGHT LED ELECTRONICS CORP.
BQ-M28DRD
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
-
5.5
-
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
佰鴻工業股份有限公司
http://www.brtled.com
Ver.1.0 Page 2 of 3
BRIGHT LED ELECTRONICS CORP.
BQ-M28DRD
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
600
630
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
3.0
690
3.0
720
750
Fig.3 Relative Luminous
Intensity VS.
Ambient Temperature
2.5
2.0
1.5
1.0
0.5
0
-40
-20
0
20
40
60
Ambient Temperature Ta( C)
Forward Voltage (V)
Fig.4 Relative Luminous
Intensity VS.
Forward Current
50
Fig.5 Forward Current
Derating Curve VS.
Ambient Temperature
佰鴻工業股份有限公司
http://www.brtled.com
Forward Current(mA)
Relative Luminous Intensity
(@20mA)
●
2.0
1.0
0.0
10
20
30
40
Forward Current(mA)
50
40
30
20
10
0
20
40
60
80
100 120
Ambient Temperature Ta( C)
Ver.1.0 Page 3 of 3