Luckylight
0.25" Dual Digit Numeric Displays
Technical Data Sheet
Model No.: KW4-252XSA
Spec No.: R256
Approved: JoJo
Rev No.: V.2
Checked: Wu
Date: Nov/03/2005
Drawn: Zhang
Page: 1 OF 6
Lucky Light Electronics Co., Ltd.
Http://www.luckylight.cn
Luckylight
Features:
◇
◇
◇
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0.25″ (inch) digit height.
Excellent segment uniformity.
Sold state reliability.
Industrial standard size.
Low power consumption.
The product itself will remain within RoHS compliant Version.
Descriptions:
◇
The KW4-252XXX series is a lager 6.20mm (0.25″) high seven segments display
designed for
These displays provide excellent reliability in bright ambient light.
These devices are made with white segments and gray surface
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Applications:
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Audio equipment.
Instrument panels.
Digital read out display.
Device Selection Guide:
Model No.
KW4-252ASA
GaAlAs
KW4-252CSA
Chip
Material
Source Color
Super Bright
Red
Super Bright
Red
Description
Common Anode
Common Cathode
Spec No.: R256
Approved: JoJo
Rev No.: V.2
Checked: Wu
Date: Nov/03/2005
Drawn: Zhang
Page: 2 OF 6
Lucky Light Electronics Co., Ltd.
Http://www.luckylight.cn
Luckylight
Package Dimension:
8.4 [0.331]
5.2(.205)±0.5
3.5 [0
.138]
0.8 [0
.032]
10°
11 [0.433]
+
PIN 1
6.00*3=18.0(.709)
36 [1.418]
5.1 [0.201]
5.1 [0.201]
36 [1.418]
DIG.1 DIG.2 DIG.3 DIG.4
A
? 0.5 [0.020]
11 [0.433]
6.20(.25)
F G B
E
D
C
UC
LC
? 0.5 [0.020]
8
(COM)
6
(COM)
DIG.3
DIG.4
B
C
D
E
F
G DP
A
B
C
D
E
F
G
8
(COM)
6
(COM)
DIG.3
DIG.4
C
D
E
F
G DP
A
B
C
D
E
F
G
DP
5.2(.205)±0.5
2.54*5=12.70(0.500)
KW4-252CSA
12
(COM)
DIG.1
9
(COM)
DIG.2
A
B
C
D
E
F
G
A
B
C
D
E
F
G UC LC
A
11 7
4
2
1 10 5
3
KW4-252ASA
12
(COM)
DIG.1
9
(COM)
DIG.2
A
B
C
D
E
F
G
A
B
C
D
E
F
G UC LC
A
B
11 7
4
2
1 10 5
3
Notes:
1. All dimensions are in millimeters (inches).
2. Tolerance is ±0.25 mm (.010″) unless otherwise noted..
3. Specifications are subject to change without notice.
Spec No.: R256
Approved: JoJo
Rev No.: V.2
Checked: Wu
Date: Nov/03/2005
Drawn: Zhang
Page: 3 OF 6
Lucky Light Electronics Co., Ltd.
Http://www.luckylight.cn
Luckylight
Absolute Maximum Ratings at Ta=25℃
Parameters
Power Dissipation Per Segment
Peak Forward Current Per Segment
(1/10 Duty Cycle, 0.1ms Pulse Width)
Forward Current Per Segment
Derating Linear From 50℃
Reverse Voltage
Operating Temperature Range
Storage Temperature Range
Soldering Temperature
VR
Topr
Tstg
Tsld
Symbol
PD
IFP
IF
Max.
60
100
25
0.4
5
Unit
mW
mA
mA
mA/℃
V
-40℃ to +80℃
-40℃ to +100℃
260℃ for 5 Seconds
Electrical Optical Characteristics at Ta=25℃
Parameters
Luminous Intensity
Peak Emission Wavelength
Dominant Wavelength
Spectral Line Half-Width
Forward Voltage
Reverse Current
Symbol
Iv
λp
λd
△λ
VF
IR
Min.
1.0
655
635
19
1.60
---
Typ.
1.8
660
640
24
1.8
---
Max.
---
665
645
29
2.4
10
Unit
mcd
nm
nm
nm
V
µA
Test Condition
IF=20mA (Note 1)
IF=20mA
IF=20mA (Note 2)
IF=20mA
IF=20mA
VR=5V
Notes:
1. Luminous intensity is measured with a light sensor and filter combination that
approximates the CIE eye-response curve.
2. The dominant wavelength (λd) is derived from the CIE chromaticity diagram and
represents the single wavelength which defines the color of the device.
Spec No.: R256
Approved: JoJo
Rev No.: V.2
Checked: Wu
Date: Nov/03/2005
Drawn: Zhang
Page: 4 OF 6
Lucky Light Electronics Co., Ltd.
Http://www.luckylight.cn
Luckylight
Typical Electrical / Optical Characteristics Curves
(25℃ Ambient Temperature Unless Otherwise Noted)
Spectral Radiance (Peak @ 660nm)
1.0
0.8
Normalized
Response
0.6
0.4
0.2
0.0
520
540
560
580
600
620
640
660
680
700
720
740
760
780
Wave Length(nm)
Spec No.: R256
Approved: JoJo
Rev No.: V.2
Checked: Wu
Date: Nov/03/2005
Drawn: Zhang
Page: 5 OF 6
Lucky Light Electronics Co., Ltd.
Http://www.luckylight.cn
