BRIGHT LED ELECTRONICS CORP. BQ-N514RD SINCE 1981 ● Features : 1. 0.56 inch (14.2mm) Digit Height. 2. Continuous uniform segments. 3. Low power requirement. 4. Excellent characters appearance. 5. Solid state reliability. 6. Categorized for luminous intensity. 7. Multiplex drive common cathode. ● Package Dimensions : 8.10(.319) 14.20(.560) 8° 19.0(.748) 50.00(1.969) 15.24(.600) ? 1.6(.063) 8.00(.315) ? 0.5(.020) 2.54x5=12.70(.500) ● 1. 3.00(.118)MIN Description : The BQ-N514RD is a 14.2mm (0.56") high four digit seven segments display. 2. This product use hi-eff red chips, which are made from GaAsP on GaP substrate. 3. This product have a black face and white segments. 4. This product doesn't contain restriction Notes: 1. All dimensions are in millimeters(inches). 2. Tolerance is ±0.25mm(.01")unless otherwise specified. 3. Specifications are subject to change without notice. substance, comply ROHS standard. ● Internal Circuit Diagram : Ver.1.0 Page 1 of 3 BRIGHT LED ELECTRONICS CORP. BQ-N514RD SINCE 1981 ● Absolute Maximum Ratings(Ta=25℃) Parameter Symbol Rating Unit Power Dissipation Per Segment Pd 80 mW Forward Current Per Segment IF 30 mA IFP (Duty 1/10, 1KHZ) 150 mA VR 5 V Operating Temperature Topr -40℃~80℃ - Storage Temperature Tstg -40℃~85℃ - Soldering Temperature (1/16" From Body) Tsol 260℃ For 5 Seconds - Peak Forward Current Per Segment Reverse Voltage Per Segment ● Electrical And Optical Characteristics(Ta=25℃) Parameter Symbol Condition Min. Typ. Max. Unit Forward Voltage Per Segment Vf IF=10mA - 1.9 2.5 V Luminous Intensity Per Segment Iv IF=10mA - 3.5 - mcd Reverse Current Per Segment IR VR=5V - - 100 µA Peak Wave Length λp IF=10mA - 640 - nm Dominant Wave Length λd IF=10mA 626 - 636 nm Spectral Line Half-width ∆λ IF=10mA - 40 - nm Ver.1.0 Page 2 of 3 BRIGHT LED ELECTRONICS CORP. BQ-N514RD SINCE 1981 Typical Electro-Optical Characteristics Curves (25℃ Ambient Temperature Unless Otherwise Noted) Fig.1 Relative Radiant Intensity VS. Wavelength Relative Radiant Intensity 1.0 0.5 0 560 590 620 Fig.2 Forward Current VS. Forward Voltage 40 30 20 10 0 650 Wavelength(nm) Relative Luminous Intensity (@20mA) Forward Current (mA) 50 0 1 2 3 4 5 Fig.4 Relative Luminous Intensity VS. Forward Current 2.0 1.0 0.0 0 10 20 30 40 Forward Current(mA) 3.0 50 710 740 Fig.3 Relative Luminous Intensity VS. Ambient Temperature 2.5 2.0 1.5 1.0 0.5 0 -40 50 Forward Current(mA) 3.0 680 -20 0 20 40 60 Ambient Temperature Ta( C) Forward Voltage (V) Relative Luminous Intensity (@20mA) ● Fig.5 Forward Current Derating Curve VS. Ambient Temperature 40 30 20 10 0 0 20 40 60 80 100 120 Ambient Temperature Ta( C) Ver.1.0 Page 3 of 3