LightKey
Datasheet of 0.25 inch Four Digit 7 Segment LED Display
LD2541U/V Series - 0.25 inch dual Digit 7 Segment LED Display
ATTENTION
OBSERVE PRECAUTIONS
FOR HANDLING
ELECTROSTATIC
DISCHARGE
SENSITIVE
DEVICES
Features
6.20 mm (0.25inch) digit high
Excellent digit appearance
Wide viewing angle
Range of emitted colors
I.C. compatible
Low power consumption
White segment
RoHS compliant
Available options
Alternative emitting luminosity:
Standard or high brightness version
Alternative emitted color
Alternative segment color
Alternative font
Common Cathode is available
Cropped terminal pins
Package Dimensions
10.0
°
3.50
0.80
DIG.1
A
11.00
DIG.2
D1
DIG.3
DIG.4
6.2(.25")
F
E
G B
C
D
D2
D3
PIN1
6.00
6.00
36.00
6.00
5.10
0.50
2.54*5=12.70
7.40
0.45
8.10
Notes:
1. All dimensions are in millimeters(inches), Tolerance is + 0.25mm(0.01inch)unless other wise noted.
2. Specifications are subject to change without notice.
3. The gap between the reflector and PCB shall not exceed 0.25mm
SPEC NO: DS10121536
REV: A.4
CHECKED: Emily Zhou
APPROVED: M.H. Lin
PAGE: 1/3
HTTP://WWW.DISPLAY-LEDS.COM
TEL: 0086-574-86322282
DATE: Jul/20/2011
LightKey
Internal Circuit Diagram
LD2541U (Common Cathode)
Datasheet of 0.25 inch Four Digit 7 Segment LED Display
LD2541V (Common Anode)
Selection Guide
Four Digits 7 Segment LED Display, Digit Height: 6.20mm(0.25inch), External Dimensions:
36.00x11.00x5.10mm (Lx W x H)
Part No.
Common
Cathode
LD2541UR
LD2541UD
LD2541UO
LD2541UY
LD2541UG
LD2541UUR
LD2541UUO
LD2541UUA
LD2541UUY
LD2541UUG
LD2541UPG
LD2541UUB
LD2541UUW
Unit:
Common
Anode
LD2541VR
LD2541VD
LD2541VO
LD2541VY
LD2541VG
LD2541VUR
LD2541VUO
LD2541VUA
LD2541VUY
LD2541VUG
LD2541VPG
LD2541VUB
LD2541VUW
\
Material
GaAlAs
GaAlAs
GaAsP
GaAsP
GaP
AlGaInP
AlGaInP
AlGaInP
AlGaInP
AlGaInP
InGaN
InGaN
InGaN
\
Chip
Color
Super Red
Hi-Red
Orange
Yellow
Green
Ultra Red
Ultra Orange
Ultra Amber
Ultra Yellow
Ultra Green
Pure Green
Ultra Blue
Ultra White
\
WLD
640
640
625
588
568
640
625
65
595
573
525
470
\
nm
Iv@IF=20mA
One Seg
Min.
8
18
7
8
7
30
45
30
30
30
120
30
100
mcd
Typ.
10
25
9
10
9
45
60
45
45
45
300
45
120
mcd
Iv@IF=20mA
One DP
Min.
8
18
7
8
7
30
45
30
30
30
120
30
100
mcd
Typ.
10
25
9
10
9
45
60
45
45
45
300
45
120
mcd
SPEC NO: DS10121536
REV: A.4
CHECKED: Emily Zhou
APPROVED: M.H. Lin
PAGE: 2/3
HTTP://WWW.DISPLAY-LEDS.COM
TEL: 0086-574-86322282
DATE: Jul/20/2011
LightKey
Datasheet of 0.25 inch Four Digit 7 Segment LED Display
Electrical Characteristics & Absolute Maximum Ratings
Electrical Characteristics
[1]
Forward
Color
Voltage@
IF=20mA
Typ.
Super Red
Per Seg.
Per DP
Hi-Red
Per Seg.
Per DP
Orange
Per Seg.
Per DP
Yellow
Per Seg.
Per DP
Green
Per Seg.
Per DP
Ultra Red
Ultra
Orange
Ultra
Amber
Ultra
Yellow
Ultra
Green
Pure
Green
Ultra Blue
Per Seg.
Per DP
Per Seg.
Per DP
Per Seg.
Per DP
Per Seg.
Per DP
Per Seg.
Per DP
Per Seg.
Per DP
Per Seg.
Per DP
Ultra White
Unit:
Notes:
1. At Ta=25 °C.
2. Peak forward current at 1/10 Duty Cycle, 0.1ms Pulse.
Absolute Maximum Ratings
[1]
DC
Forward
Current
25
25
25
25
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
mA
Peak
Forward
Current
[2]
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
mA
Reverse
Current
VR=5V
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
uA
Power
Dissipation
Max.
2.2
2.2
2.2
2.2
2.5
2.5
2.5
2.5
2.5
2.5
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
4
4
4
4
4
4
V
60
60
60
60
80
80
80
80
80
80
60
60
65
65
65
65
65
65
75
75
110
110
120
120
120
120
mW
1.8
1.8
1.8
1.8
2.1
2.1
2.1
2.1
2.2
2.2
1.9
1.9
2
2
2
2
2
2
2.1
2.1
3.5
3.5
3.5
3.5
3.5
3.5
V
Per Seg.
Per DP
\
SPEC NO: DS10121536
REV: A.4
CHECKED: Emily Zhou
APPROVED: M.H. Lin
PAGE: 3/3
HTTP://WWW.DISPLAY-LEDS.COM
TEL: 0086-574-86322282
DATE: Jul/20/2011
