KWM-37881 series 8 x 8 dot matrix (3.7mm dot) led display internal circuit diagram row cathode row anode row 1 2 3 4 5 6 7 8 1 col 2345678 pin1 3.70(0.146) 10.3(0.406) 4.50(0.177) 2.54 * 7=17.78(0.700) 28.20(1.110) 38.0(1.496) 4.70*7=32.90(1.102) 38.0(1.496) 4.70*7=32.90(1.102) 0.5(0.020) row 1 2 3 4 5 6 7 8 pin no. pin no. 1 col 2345678 13 9 14 8 12 7 2 5 1 3 4 10 6 11 15 16 row 1 2 3 4 5 6 7 8 pin no. pin no. 1 col 2345678 13 9 14 8 12 7 2 5 1 3 4 10 6 11 15 16 part no. selection and application information (ratings at 25 o c ambient) c.c or c.a bright red hi-eff red super red green super green yellow bright red hi-eff red super red green super green yellow emitted color gap gaasp/gap gaalas gap gap gaasp/gap gap gaasp/gap gaalas gap gap gaasp/gap raw material chip 700 635 660 565 570 585 700 635 660 565 570 585 90 45 20 30 30 30 90 45 20 30 30 30 ? (nm) 100 100 100 100 100 100 100 100 100 100 100 100 pd (mw) 100 100 100 100 100 100 100 100 100 100 100 100 if (peak) (ma) if (rec) ma absolute maximum ratings 50 50 50 50 50 50 50 50 50 50 50 50 if (ma) 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 2.6 2.6 2.6 2.6 2.6 2.8 2.6 2.6 2.6 2.6 2.6 10-20 10-20 10-20 10-20 10-20 10-20 10-20 10-20 10-20 10-20 10-20 10-20 450 900 1600 800 850 800 450 900 1600 800 850 800 950 1800 3000 1700 1850 1700 950 1800 3000 1700 1850 1700 electro-optical characteristic KWM-37881a5 KWM-37881a3 KWM-37881as KWM-37881a2 KWM-37881ag KWM-37881a6 KWM-37881c5 KWM-37881c3 KWM-37881cs KWM-37881c2 KWM-37881cg KWM-37881c6 part no. common anode common cathode wave length ? (nm) vf (v) per dot min. typ. max. iv ( cd) per dot min. typ. package dimensions remarks : 1. the average luminous intensity is obtained by summing the luminous intensity of each segment and dividing by the t otal number of segments. 2. luminous intensity is measured with a light sensor and filter combination that approximates the cie (international commissi on on illumination) eye-response curve. 3. clean only by pure water, isopropanol, ethanol, freon tf (or equivalent). description: the KWM-37881 series is 38.00mm (1.496") 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. 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 absolute maximum ratings: (ta=25 o c) max 5 v 100 a 0.4ma/ o c -40 o c to 85 o c -40 o c to 100 o c parameter reverse voltage per segment reverse current per segment (vr = 5v) derating linear from 25 o c per segment operating temperature range storage temperature range 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.
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