BS-A844BD

BRIGHT LED ELECTRONICS CORP. SINCE 1981 BS-A844BD ● 1. 2. 3. 4. 5. 6. 7. Features : 0.80 inch (20.40mm) Digit Height. Continuous uniform segments. Low power requirement. Excellent characters appearance. Solid state reliability. Categorized for luminous intensity. Direct drive common anode. ● Package Dimensions : 11.00(.433) 8 2.54(.100) 20.40(.800) 27.70(1.091) 19.90(.783) 1.5(.059) 1.00(.039) 8.40(.331) ● 1. 2. 3. 4. Description : The BS-A844BD is a 20.40mm (0.80") high single digit seven segments display. 0.50(.020) 15.24(.600) 6.3±0.5(.248±020) Notes: 1. All dimensions are in millimeters(inches). This product use hi-eff red chips, which 2. Tolerance is ±0.25mm(.01")unless otherwise are made from GaAsP on GaP substrate specified. This product have a black face and white 3. Specifications are subject to change without notice. segments This product doesn't contain restriction substance, comply ROHS standard. ● Internal Circuit Diagram : 佰鴻工業股份有限公司 http://www.brtled.com Ver.1.0 Page 1 of 3 BRIGHT LED ELECTRONICS CORP. SINCE 1981 BS-A844BD ● 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 3.2 - Max. 2.5 100 - Unit V mcd µA nm nm nm Dominant Wave Length Spectral Line Half-width 佰鴻工業股份有限公司 http://www.brtled.com λp IF=10mA 640 λd IF=10mA IF=10mA 626 ∆λ 40 - 636 Ver.1.0 Page 2 of 3 BRIGHT LED ELECTRONICS CORP. SINCE 1981 BS-A844BD ● 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 2.0 Forward Current(mA) 1.0 佰鴻工業股份有限公司 http://www.brtled.com 20 10 0 0 10 20 30 40 50 0 20 40 60 80 100 120 0.0 Forward Current(mA) Ambient Temperature Ta( C) Ver.1.0 Page 3 of 3