KWT-541 SERIES Alphanumeric LED Display Dual Digit (0.54") DESCRIPTION: PACKAGE DIMENSIONS The KWT-541 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. 8.00 o 5.0 1.10 DIG. 1 DIG. 2 21.10 13.72(.54") A F H J K NM L E D + PIN 1. B G1 G2 C DP 12.70 25.20 o 7.80 ABSOLUTE MAXIMUM RATINGS: (Ta=25 C) 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 φ0.50 15.24 2.54*8=20.32 INTERNAL CIRCUIT DIAGRAM 16 11 DIG 1 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 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. 3 NO CONNECT 12 10 9 7 1 18 13 6 17 15 14 5 4 2 8 16 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 DIG 2 Test Condition If=20mA If=20mA If=20mA Vr=5V If=10mA 11 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 3 NO CONNECT 12 10 9 7 1 18 13 6 17 15 14 5 4 2 8 o PART NO. SELECTION AND APPLICATION INFORMATION (RATINGS AT 25 C AMBIENT) Chip Part No. Wave Raw Material Emitted Color KWT-541A3 GaAsP/GaP Hi-Eff. Red KWT-541AS GaAlAs Super Red KWT-541A2 C.C or C.A Electro-optical Data(at 10mA) Absolute Maximum Ratings ∆λ Pd If 635 45 100 50 100 1.7 1.9 2.6 10-20 750 660 20 100 50 100 1.5 1.9 2.6 10-20 5600 21000 565 30 100 50 100 1.7 2.2 2.6 10-20 750 2000 Length λρ (nm) If If Vf (V) Iv (µcd) (Peak) Per Segment (Rec) Per Segment (nm) (mW) (mA) (mA) Min. Typ. Max. mA Min. Typ. 2000 Common GaP Green Anode KWT-541AG GaP Super Green 570 30 100 50 100 1.7 2.2 2.6 10-20 850 2200 KWT-541A6 GaAsP/GaP Yellow 585 30 100 50 100 1.7 1.9 2.6 10-20 700 1600 KWT-541C3 GaAsP/GaP Hi-Eff Red 635 45 100 50 100 1.7 1.9 2.6 10-20 750 2000 KWT-541CS GaAlAs Super Red 660 20 100 50 100 1.5 1.9 2.6 10-20 5600 21000 565 30 100 50 100 1.7 2.2 2.6 10-20 750 2000 KWT-541C2 Common GaP Green Cathode KWT-541CG GaP Super Green 570 30 100 50 100 1.7 2.2 2.6 10-20 850 2200 KWT-541C6 GaAsP/GaP Yellow 585 30 100 50 100 1.7 1.9 2.6 10-20 700 1600 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).