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KWM-37881XY Datasheet, PDF (1/1 Pages) Lucky Light Electronic – 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.
ABSOLUTE MAXIMUM RATINGS: (Ta=25oC)
Parameter
Max
Reverse Voltage per segment
5V
Reverse Current per segment (Vr = 5V)
100µA
Derating Linear from 25oC per segment
0.4mA/ oC
Operating Temperature Range
-40oC To 85oC
Storage Temperature Range
-40oC To 100oC
Soldering Temperature 1.6mm(1/16") from body for 5 sec. at 260oC
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.
TESTING CONDITION FOR EACH PARAMETER :
Parameter
Symbol Unit Test Condition
Forward Voltage
Vf
V
If=20mA
Peak Emission Wave Length
λρ
nm
If=20mA
Spectral Line Half-Width
∆λ
nm
If=20mA
Reverse Current
Ir
µA
Vr=5V
Average Luminous Intensity
Iv
µ cd
If=10mA
KWM-37881XY SERIES
8 x 8 Dot Matrix (3.7mm Dot)
Multi-Color
LED Display
PACKAGE DIMENSIONS
COL 1 2 3 4 5 6 7 8
1
2
3
4
5
6
7
PIN1
4.70*7=32.90(1.102)
38.0(1.496)
φ3.70(0.146)
8
ROW
10.3(0.406)
2.54*11=27.9(1.098)
4.50(0.177)
φ0.5(0.020)
28.20(1.110)
INTERNAL CIRCUIT DIAGRAM
ROW CATHODE
COL 1 2 3 4 5 6 7 8
PNION. 5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13
ROW ANODE
COL 1 2 3 4 5 6 7 8
PNION. 5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13
ROW PNION.
1 24
ROW PNION.
1 24
2 23
2 23
3 22
3 22
4 21
4 21
54
54
63
63
72
72
81
GREEN
RED
81
GREEN
RED
PART NO. SELECTION AND APPLICATION INFORMATION (RATINGS AT 25oC AMBIENT)
Part No.
Chip
Raw
Material
Emitted
Color
Wave Absolute Maximum Ratings Electro-optical Characteristic
C.C
or
Length ∆λ Pd If
If
Vf (V)
If Iv (µcd)
C.A
(Peak) Per Dot (Rec) Per Dot
λρ (nm) (nm) (mW) (mA) (mA) Min. Typ. Max. mA Min. Typ.
GaAsP/GaP Hi-Eff Red
635
KWM-37881A32
GaP
Green
565
GaAlAs Super Red Common 660
KWM-37881ASG
GaP
Super Green Anode
570
45 100 50 100 1.7 1.9 2.6 10-20 850 1500
30 100 50 100 1.7 2.2 2.6 10-20 750 1400
20 100 50 100 1.5 1.9 2.6 10-20 1500 3000
30 100 50 100 1.7 2.2 2.6 10-20 800 1550
GaAsP/GaP
KWM-37881A62
GaP
Yellow
Green
585 30 100 50 100 1.7 1.9 2.6 10-20 750 1400
565 30 100 50 100 1.7 2.2 2.6 10-20 750 1400
GaAsP/GaP Hi-Eff Red
635
KWM-37881C32
GaP
Green
565
GaAlAs Super Red Common 660
KWM-37881CSG
GaP Super Green Cathode 570
45 100 50 100 1.7 1.9 2.6 10-20 850 1500
30 100 50 100 1.7 2.2 2.6 10-20 750 1400
20 100 50 100 1.5 1.9 2.6 10-20 1500 3000
30 100 50 100 1.7 2.2 2.6 10-20 800 1550
GaAsP/GaP
KWM-37881C62
GaP
Yellow
Green
585 30 100 50 100 1.7 1.9 2.6 10-20 750 1400
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).