KWM-37881XY SERIES
8 x 8 Dot Matrix (3.7mm Dot)
Multi-Color
LED Display
DESCRIPTION:
The KWM-37881XY series is 38.00mm (1.496") height 8 x 8 multi-color dot
matrix display.
This multi-color series is suitable for use in single/multi-line message display,
large area graphics display and electronic games.
All devices are available as either common row anode or common row cathode.
PACKAGE DIMENSIONS
COL 1
2
3
4
5
6
7
8
1
2
4.70*7=32.90(1.102)
38.0(1.496)
3
4
5
6
7
8
ROW
PIN1
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
4.70*7=32.90(1.102)
38.0(1.496)
φ3.70(0.146)
10.3(0.406)
4.50(0.177)
2.54*11=27.9(1.098)
φ0.5(0.020)
28.20(1.110)
INTERNAL CIRCUIT DIAGRAM
ROW CATHODE
COL
1
2
3
4
5
6
7
8
PIN
5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13
NO.
ROW ANODE
COL
1
2
3
4
5
6
7
8
PIN
5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13
NO.
ROW
PIN
NO.
1
2
ROW
PIN
NO.
1
2
3
4
5
6
7
8
GREEN
RED
24
23
22
21
4
3
2
1
24
23
22
21
4
3
2
1
GREEN
RED
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
3
4
5
6
7
8
PART NO. SELECTION AND APPLICATION INFORMATION (RATINGS AT 25 C AMBIENT)
Chip
Part No.
Raw
Material
GaAsP/GaP
KWM-37881A32
GaP
GaAlAs
KWM-37881ASG
GaP
GaAsP/GaP
KWM-37881A62
GaP
GaAsP/GaP
KWM-37881C32
GaP
GaAlAs
KWM-37881CSG
GaP
GaAsP/GaP
KWM-37881C62
GaP
Green
565
30
100
50
100
1.7
2.2
2.6 10-20 750
1400
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).
o
Wave
Emitted
Color
Hi-Eff Red
Green
Super Red
Common
Anode
C.C
or
C.A
Length
λρ
(nm)
635
565
660
570
585
565
635
565
Common
660
570
585
Absolute Maximum Ratings
∆λ
Pd
If
Electro-optical Characteristic
If
If
Vf (V)
Iv (µcd)
(Peak)
(Rec)
Per Dot
Per Dot
(nm) (mW) (mA) (mA) Min. Typ. Max. mA Min. Typ.
45
30
20
30
30
30
45
30
20
30
30
100
100
100
100
100
100
100
100
100
100
100
50
50
50
50
50
50
50
50
50
50
50
100
100
100
100
100
100
100
100
100
100
100
1.7
1.7
1.5
1.7
1.7
1.7
1.7
1.7
1.5
1.7
1.7
1.9
2.2
1.9
2.2
1.9
2.2
1.9
2.2
1.9
2.2
1.9
2.6 10-20 850
2.6 10-20 750
1500
1400
2.6 10-20 1500 3000
2.6 10-20 800
2.6 10-20 750
2.6 10-20 750
2.6 10-20 850
2.6 10-20 750
1550
1400
1400
1500
1400
Super Green
Yellow
Green
Hi-Eff Red
Green
Super Red
2.6 10-20 1500 3000
2.6 10-20 800
2.6 10-20 750
1550
1400
Super Green Cathode
Yellow
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