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| BRIGHT LED ELECTRONICS CORP. SINCE 1981 BQ-N404RD 1. 2. 3. 4. 5. 6. 7. Features : 0.40 inch (10.16mm) Digit Height. Continuous uniform segments. Low power requirement. Excellent characters appearance. Solid state reliability. Categorized for luminous intensity. Multiplex drive common cathode. Package Dimensions : 1. 2. 3. 4. Description : The BQ-N404RD is a 10.16mm (0.40") high four digit seven segments display. This product use hi-eff red chips, which are made from GaAsP on GaP substrate. This product have a black face and white segments. This product doesn't contain restriction substance, comply ROHS standard. 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. Internal Circuit Diagram : http://www.brtled.com Ver.1.0 Page 1 of 3 BRIGHT LED ELECTRONICS CORP. SINCE 1981 BQ-N404RD Absolute Maximum Ratings(Ta=25) Parameter Power Dissipation Per Segment Forward Current Per Segment Peak Forward Current Per Segment Reverse Voltage Per Segment Operating Temperature Storage Temperature Soldering Temperature (1/16" From Body) Symbol Pd IF IFP (Duty 1/10, 1KHZ) VR Topr Tstg Tsol Rating 80 30 150 5 -40~80 -40~85 260 For 5 Seconds Unit mW mA mA V - Electrical And Optical Characteristics(Ta=25) Parameter Forward Voltage Per Segment Luminous Intensity Per Segment Reverse Current Per Segment Peak Wave Length Symbol Condition Vf Iv IR IF=10mA IF=10mA VR=5V Min. - Typ. 1.9 3.0 - Max. 2.5 - Unit V mcd A nm nm nm Dominant Wave Length http://www.brtled.com p IF=10mA 640 d IF=10mA 626 IF=10mA 40 - 100 636 Spectral Line Half-width Ver.1.0 Page 2 of 3 BRIGHT LED ELECTRONICS CORP. SINCE 1981 BQ-N404RD Typical Electro-Optical Characteristics Curves (25 Ambient Temperature Unless Otherwise Noted) Fig.1 Relative Radiant Intensity VS. Wavelength 1.0 Relative Radiant Intensity 0.5 0 560 590 620 Wavelength(nm) 650 680 710 740 Relative Luminous Intensity (@20mA) 0 1 2 3 4 5 50 Fig.2 Forward Current VS. Forward Voltage 3.0 2.5 2.0 1.5 1.0 0.5 Fig.3 Relative Luminous Intensity VS. Ambient Temperature Forward Current (mA) 40 30 20 10 0 Forward Voltage (V) Fig.4 Relative Luminous Intensity VS. Forward Current 0 -40 Ambient Temperature Ta( C) Fig.5 Forward Current Derating Curve VS. Ambient Temperature -20 0 20 40 60 Relative Luminous Intensity (@20mA) 3.0 50 40 30 http://www.brtled.com 20 1.0 10 0.0 0 0 10 20 30 40 50 0 20 40 60 80 100 120 2.0 Forward Current(mA) Forward Current(mA) Ambient Temperature Ta( C) Ver.1.0 Page 3 of 3 |
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