NANYA ROAD,MUGANG ZHAOQING
CITY GUANGDONG CHINA.
TEL:86-758-2875541,2870651,2877464,2876185,2877017
FAX:86-758-2878014
Http://www.ledtech.com.tw
LEDTECH ELECTRONICS CORP.
SPECIFICATION
PART NO. :
LA(C)5121-K2 EWEW
5.0"(127.0mm) SINGLE DIGIT DISPLAY
Approved by
Checked by
Prepared by
Sam
Jimmy
Danny
LA(C)5121-K2
Dimensions
10°
10
5.0" SINGLE DIGIT
DISPLAY
76.0
6
9.0
15.6
0.8 DIA.
127.0
9.0 DIA.
1
5
180.0
132.0
A
108.0
3.5 MIN.
5.08
X
4=20.32
E
F
G
C
D
B
DP
COMMA
Notes:
1. THE SLPE ANGLE OF ANY PIN MAY BE ±5.0° MAX.
2. ALL DIMENSIONS ARE IN mm,TOLERANCE IS ±0.25mm UNLESS OTHERWISE NOTED.
Internal Circuit Diagram
LA5121-K2
LC5121-K2
8
COM MA
8
COM MA
A
B
C
D
E
F
G DP
A
B
C
D
E
F
G DP
7
6
5
2
1
10
9
4 3
7
6
5
2
1
10
9
4 3
REV.: 01 Date: 2005/12/09
Page: 1/5
LA(C)5121-K2
Description
LED Chip
Part
No.
Material
GaP/GaP
5.0" SINGLE DIGIT
DISPLAY
Face Color
Surface
Grey
Segments
White
Emitting Color
Green
LA5121-K2 EWEW
LC5121-K2 EWEW
GaP/GaP
Green
Grey
White
Absolute Maximum Ratings at Ta=25
℃
Parameter
Power Dissipation Per Segment
COMMA.DP.
Symbol
P
D
I
FP
I
F
Ir
V
R
Topr.
Tstg.
Tsol.
Rating
234
1560
100
30
100
5
-25 to +85
-40 to +100
260 for 5s MAX.
Unit
mW
mA
mA
uA
V
℃
℃
℃
SEG..
Pulse Current(1/10Duty Cycle,0.1ms Pulse Width.)Per Chip
Forward Current Per Chip
Reverse (Leakage)Current Per Chip
Reverse Voltage Per Chip
Operating Temperature Range
Storage Temperature Range
Lead Soldering Temperature.(1.6mm from seating plane)
REV.: 01 Date: 2005/12/09
Page: 2/5
LA(C)5121-K2
Electrical and Optical Characteristics:
Parameter
Luminous Intensity Per Segment
5.0" SINGLE DIGIT
DISPLAY
Symbol
I
V
COMMA.DP.
Condition
If=10mA/seg.
If=20mA/seg.
If=20mA/seg.
If=20mA/seg.
If=20mA/seg.
Vr=5V
If=20mA/seg.
-----------
Min.
7.6
Typ.
12.2
6.3
21.0
567
572
Max.
Unit
mcd
7.8
V
26.0
nm
nm
100
µA
nm
ns
Forward Voltage
Vf
SEG.
Peak Wavelength
Dominant Wavelength
Reverse Current Per Chip
(Leakage Current Per Chip)
Spectrum Line Halfwidth
Response Time
λP
λD
Ir
∆
λ
T
30
250
REV.: 01 Date: 2005/12/09
Page: 3/5
LA(C)5121-K2
Typical Electrical/Optical Characteristic Curves
5.0" SINGLE DIGIT
DISPLAY
(25℃ Ambient Temperature Unless Otherwise Noted)
1.0
Relative Intensity
Ratio of Maximum
Operating Peak Current to
Temperature
Derated DC Current
100
OPERATION IN THIS
REGION REOUIRES
TEMPERATURE
DERATING OF I
DC
MAXIMUM
0.5
10
I
F
PEAK
I
DC
MAX
0
10
KH
10
H
Z
1K
H
3K
0
30
H
Z
H
Z
Z
500
560
620
680
1
Z
1
Wavelength (nm)
1000
tp - Pulse Duration -
μ
s
10
100
10000
Fig.1 RELATIVE INTENSITY VS.
WAVELENGTH
Fig.2 MAXIMUM TOLERABLE PEAK
CURRENT VS. PULSE DURATION
50
Forward Current IF(mA)
50
Forward Current IF(mA)
40
30
20
10
40
30
20
10
0
20
40
60
80
100
1.6
1.8
2.0
2.2
2.4
Forward Voltage VF(V)
2.6
Fig .3 FORWARD CURRENT VS.
FORWARD VOLTAGE PER CHIP
Ambient Temperature Ta (°C)
Fig.4 FORWARD CURRENT VS.
DERATING CURVE
25
Relative Luminous Intensity
Normalized at 10mA
20
15
10
5.0
Relative Luminous Intensity
2.0
1.0
0.5
0.2
0.1
-30 -20 -10
0
10
20
30
40
50
60
70
0
10
20
30
40
Forward Current (mA)
Ambient Temperature Ta (°C)
Fig.6 LUMINOUS INTENSITY VS.
AMBIENT TEMPERATURE
Fig.5 RELATIVE LUMINOUS INTENSITY
VS. FORWARD CURRENT
REV.: 01 Date: 2005/12/09
Page: 4/5