KWT-542 SERIES
Alphanumeric LED Display
Dual Digit (0.54")
DESCRIPTION:
The KWT-542 series is 0.54 inch (13.72mm) height 14-segment dual digit
alphanumeric displays with the right DPs.
This series is suitable for use in instrument panels, digital readout displays.
All devices are available as either common anode or common cathode.
PACKAGE DIMENSIONS
5.0
o
8.00
1.10
DIG. 1
F
DIG. 2
A
13.72(.54")
21.10
H J K
G1 G2
NM L
B
C
DP
E
+
PIN 1.
12.70
25.20
7.80
D
ABSOLUTE MAXIMUM RATINGS: (Ta=25 C)
Parameter
Max
Reverse Voltage per segment
5V
Reverse Current per segment (Vr = 5V)
100µA
Derating Linear from 25
o
C per segment
0.4mA/
o
C
Operating Temperature Range
-40
o
C To 85
o
C
Storage Temperature Range
-40
o
C To 100
o
C
Soldering Temperature 1.6mm(1/16") from body for 5 sec. at 260
o
C
NOTES : 1. All dimensions are in millimeters (inches).
2. Tolerance is +0.25mm(0.010) unless otherwise specified.
3. Specifications are subject to change without notice.
4. NP: No Pin.
5. NC: No Connect.
o
φ0.50
2.54*8=20.32
15.24
INTERNAL CIRCUIT DIAGRAM
15 5
DIG 1
8 10
DIG 2
A B C D E F G1 G2 H J K L M N DP A B C D E F G1 G2 H J K L M N DP
12 14 4
1
15 5
18 17
3
6
2, 7, 11, 13&16 No PIN
8 10
9
TESTING CONDITION FOR EACH PARAMETER :
Parameter
Forward Voltage
Peak Emission Wave Length
Spectral Line Half-Width
Reverse Current
Average Luminous Intensity
Symbol
Vf
λρ
∆λ
Ir
Iv
Unit
V
nm
nm
µA
µ
cd
Test Condition
If=20mA
If=20mA
If=20mA
Vr=5V
If=10mA
DIG 1
DIG 2
A B C D E F G1 G2 H J K L M N DP A B C D E F G1 G2 H J K L M N DP
12 14 4
1
18 17
3
6
2, 7, 11, 13&16 No PIN
9
PART NO. SELECTION AND APPLICATION INFORMATION (RATINGS AT 25 C AMBIENT)
Chip
Part No.
Raw
Material
GaAsP/GaP
GaAlAs
GaP
GaP
GaAsP/GaP
GaAsP/GaP
GaAlAs
GaP
GaP
GaAsP/GaP
Emitted
Color
Hi-Eff. Red
Super Red
Common
Green
Anode
Super Green
Yellow
Hi-Eff Red
Super Red
Common
Green
Cathode
Super Green
Yellow
570
585
30
30
100
100
50
50
100
100
1.7
1.7
2.2
1.9
2.6 10-20 850
2.6 10-20 700
2200
1600
565
30
100
50
100
1.7
2.2
2.6 10-20 750
2000
570
585
635
660
30
30
45
20
100
100
100
100
50
50
50
50
100
100
100
100
1.7
1.7
1.7
1.5
2.2
1.9
1.9
1.9
2.6 10-20 850
2.6 10-20 700
2.6 10-20 750
2200
1600
2000
565
30
100
50
100
1.7
2.2
2.6 10-20 750
2000
C.C
or
C.A
Wave
Length
λρ
(nm)
635
660
Absolute Maximum Ratings
∆λ
Pd
If
Electro-optical Data(at 10mA)
o
If
If
Vf (V)
Iv (µcd)
(Peak) Per Segment (Rec) Per Segment
(nm) (mW) (mA) (mA) Min. Typ. Max. mA Min. Typ.
45
20
100
100
50
50
100
100
1.7
1.5
1.9
1.9
2.6 10-20 750
2000
KWT-542A3
KWT-542AS
KWT-542A2
KWT-542AG
KWT-542A6
KWT-542C3
KWT-542CS
KWT-542C2
KWT-542CG
KWT-542C6
2.6 10-20 5600 21000
2.6 10-20 5600 21000
REMARKS : 1. The average luminous intensity is obtained by summing the luminous intensity of each segment and dividing by the total number of segments.
2. Luminous intensity is measured with a light sensor and filter combination that approximates the CIE (International Commission on Illumination) eye-response curve.
3. Clean only by pure water, isopropanol, ethanol, Freon TF (or equivalent).
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