LightKey Datasheet of 0.30 inch Dual Digit 7 Segment LED Display LD3021A/B Series - 0.30 inch dual Digit 7 Segment LED Display ATTENTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC DISCHARGE SENSITIVE DEVICES Features Available options ¾ 7.62 mm (0.30 inch) digit high ¾ ¾ Excellent digit appearance ¾ Wide viewing angle ¾ Range of emitted colors ¾ I.C. compatible ¾ Low power consumption ¾ White segment ¾ RoHS compliant Alternative emitting luminosity: Standard or high brightness version ¾ ¾ ¾ ¾ ¾ Alternative emitted color Alternative segment color Alternative font Common Cathode is available Cropped terminal pins Package Dimensions 10.0 4.00 0.70 DIG.2 A F 15.00 7.62(.3") DIG.1 G B C E D DP 6.30 PIN 1 6.20 0.50 7.20 15.50 0.51 10.16 2.54*4=10.16 Notes: 1. All dimensions are in millimeters(inches), Tolerance is + 0.25mm(0.01inch)unless other wise noted. 2. Specifications are subject to change without notice. 3. The gap between the reflector and PCB shall not exceed 0.25mm. SPEC NO: DS10121577 REV: A.4 HTTP://WWW.DISPLAY-LEDS.COM CHECKED: Emily Zhou APPROVED: M.H. Lin TEL: 0086-574-86322282 PAGE: 1/3 DATE: Jul/20/2011 LightKey Datasheet of 0.30 inch Dual Digit 7 Segment LED Display Internal Circuit Diagram LD3021A (Common Cathode) 10 LD3021B (Common Anode) 5 10 5 DIG.1 DIG.2 DIG.1 DIG.2 A B C D E F G DP A B C D E F G DP A B C D E F G DP A B C D E F G DP 3 9 8 6 7 4 1 2 3 9 8 6 7 4 1 2 Selection Guide Dual Digit 7 Segment LED Display, Digit Height: 7.62mm(0.30inch), External Dimensions: 15.50x15.00x7.20mm (L x W x H) Part No. Chip Common Common Cathode Anode Material Color WLD Iv@IF=20mA Iv@IF=20mA One Seg One DP Min. Typ. Min. Typ. LD3021AR LD3021BR GaAlAs Super Red 640 8 10 8 10 LD3021AD LD3021BD GaAlAs Hi-Red 640 18 25 18 25 LD3021AO LD3021BO GaAsP Orange 625 7 9 7 9 LD3021AY LD3021BY GaAsP Yellow 588 8 10 8 10 LD3021AG LD3021BG GaP Green 568 7 9 7 9 LD3021AUR LD3021BUR AlGaInP Ultra Red 640 30 45 30 45 LD3021AUO LD3021BUO AlGaInP Ultra Orange 625 45 60 45 60 LD3021AUA LD3021BUA AlGaInP Ultra Amber 605 30 45 30 45 LD3021AUY LD3021BUY AlGaInP Ultra Yellow 595 30 45 30 45 LD3021AUG LD3021BUG AlGaInP Ultra Green 573 30 45 30 45 LD3021APG LD3021BPG InGaN Pure Green 525 120 300 120 300 LD3021AUB LD3021BUB InGaN Ultra Blue 470 30 45 30 45 LD3021AUW LD3021BUW InGaN Ultra White \ 100 120 100 120 nm mcd mcd mcd mcd Unit: \ SPEC NO: DS10121577 \ REV: A.4 HTTP://WWW.DISPLAY-LEDS.COM \ CHECKED: Emily Zhou APPROVED: M.H. Lin TEL: 0086-574-86322282 PAGE: 2/3 DATE: Jul/20/2011 LightKey Datasheet of 0.30 inch Dual Digit 7 Segment LED Display Electrical Characteristics & Absolute Maximum Ratings Electrical Characteristics[1] Forward Color Reverse Voltage@ Current IF=20mA Super Red Hi-Red Orange Yellow Green Ultra Red Ultra Orange Ultra Amber Ultra Yellow Ultra Green Pure Green Ultra Blue Ultra White Unit: Absolute Maximum Ratings[1] VR=5V Power Dissipation DC Peak Forward Forward Current Current[2] Typ. Max. Per Seg. 1.8 2.2 30 60 25 100 Per DP 1.8 2.2 30 60 25 100 Per Seg. 1.8 2.2 30 60 25 100 Per DP 1.8 2.2 30 60 25 100 Per Seg. 2.1 2.5 30 80 30 100 Per DP 2.1 2.5 30 80 30 100 Per Seg. 2.1 2.5 30 80 30 100 Per DP 2.1 2.5 30 80 30 100 Per Seg. 2.2 2.5 30 80 30 100 Per DP 2.2 2.5 30 80 30 100 Per Seg. 1.9 2.6 30 60 30 100 Per DP 1.9 2.6 30 60 30 100 Per Seg. 2 2.6 30 65 30 100 Per DP 2 2.6 30 65 30 100 Per Seg. 2 2.6 30 65 30 100 Per DP 2 2.6 30 65 30 100 Per Seg. 2 2.6 30 65 30 100 Per DP 2 2.6 30 65 30 100 Per Seg. 2.1 2.6 30 75 30 100 Per DP 2.1 2.6 30 75 30 100 Per Seg. 3.5 4 30 110 30 100 Per DP 3.5 4 30 110 30 100 Per Seg. 3.5 4 30 120 30 100 Per DP 3.5 4 30 120 30 100 Per Seg. 3.5 4 30 120 30 100 Per DP 3.5 4 30 120 30 100 V V uA mW mA mA \ Notes: 1. At Ta = 25 °C. 2. Peak forward current at 1/10 Duty Cycle, 0.1ms Pulse. SPEC NO: DS10121577 REV: A.4 HTTP://WWW.DISPLAY-LEDS.COM CHECKED: Emily Zhou APPROVED: M.H. Lin TEL: 0086-574-86322282 PAGE: 3/3 DATE: Jul/20/2011