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KWM-19881 SERIES
8 x 8 Dot Matrix (1.9mm Dot) LED Display
DESCRIPTION:
The KWM-19881 series is 20.00mm (0.79") height 8 x 8 dot matrix display. This 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.
PIN1
PACKAGE DIMENSIONS
1.90(0.075) 2.54*7=17.50(0.689)
COL 1 2 3 4 5 6 7 8
ABSOLUTE MAXIMUM RATINGS: (Ta=25 C)
Parameter Max Reverse Voltage per segment 5V Reverse Current per segment (Vr = 5V) 100A 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.
5.90(0.232) 6.30(0.248) 15.0(0.591) 2.50*7=17.50(0.689)
o
2.54*7=17.50(0.689) 20.00(0.787)
1 2 3 4 5 6 7 8 ROW
0.5(0.020)
INTERNAL CIRCUIT DIAGRAM
ROW CATHODE
PIN 13 NO. ROW PIN NO. 19
20.00(0.787)
ROW ANODE 3
4
COL 1
2
3
4
10
5
6
6
7
8
11 15 16
TESTING CONDITION FOR EACH PARAMETER :
Parameter Forward Voltage Peak Emission Wave Length Spectral Line Half-Width Reverse Current Average Luminous Intensity Symbol Vf Ir Iv Unit V nm nm A cd Test Condition If=20mA If=20mA If=20mA Vr=5V If=10mA
PIN 13 NO. ROW PIN NO. 19
COL 1
2
3
3
4
4
10
5
6
6
7
8
11 15 16
2 3 4 5 6 7 8
14 8 12 1 7 2 5
2 3 4 5 6 7 8
14 8 12 1 7 2 5
PART NO. SELECTION AND APPLICATION INFORMATION (RATINGS AT 25 C AMBIENT)
Chip Part No. Raw Material GaP GaAsP/GaP GaAlAs GaP GaP GaAsP/GaP GaP Emitted Color Bright Red Hi-Eff Red Super Red Green Super Green Yellow Bright Red Hi-Eff Red Super Red Green Super Green Yellow Common Cathode Common Anode C.C or C.A Wave Length (nm) 700 635 660 565 570 585 700 635 660 565 570 585 Absolute Maximum Ratings Pd If Electro-optical Characteristic
o
If If Vf (V) Iv (cd) (Peak) (Rec) Per Dot Per Dot (nm) (mW) (mA) (mA) Min. Typ. Max. mA Min. Typ. 90 45 20 30 30 30 90 45 20 30 30 30 100 100 100 100 100 100 100 100 100 100 100 100 50 50 50 50 50 50 50 50 50 50 50 50 100 100 100 100 100 100 100 100 100 100 100 100 1.7 1.7 1.5 1.7 1.7 1.7 1.7 1.7 1.5 1.7 1.7 1.7 2.4 1.9 1.9 2.2 2.2 1.9 2.4 1.9 1.9 2.2 2.2 1.9 2.8 10-20 400 2.6 10-20 850 600 1500
KWM-19881A5 KWM-19881A3 KWM-19881AS KWM-19881A2 KWM-19881AG KWM-19881A6 KWM-19881C5
2.6 10-20 1500 2800 2.6 10-20 750 2.6 10-20 800 2.6 10-20 750 2.8 10-20 400 2.6 10-20 850 1400 1600 1400 600 1500
KWM-19881C3 GaAsP/GaP KWM-19881CS KWM-19881C2 KWM-19881CG GaAlAs GaP GaP
2.6 10-20 1500 2800 2.6 10-20 750 2.6 10-20 800 2.6 10-20 750 1400 1600 1400
KWM-19881C6 GaAsP/GaP
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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