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| BRIGHT LED ELECTRONICS CORP. SINCE 1981 BM-40K57MD 1. 2. 3. 4. 5. 6. Features : 4.2 inch (106.20mm) matrix height. Dot size 10.0mm. Low power requirement. Excellent characters appearance. Solid state reliability. Multiplex drive , column anode com and row cathode com. Package Dimensions : 7. 8. 9. Single color available. Categorized for luminous intensity. Stackable vertically and horizontally. 1. 2. Description : The BM-40K57MD is a 106.20mm(4.2") matrix height 5x7 dot matrix display. This product use super yellow chips, which are made from AlGaInP on GaAs substrate. 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. 3. 4. This product have a black face and white dots. This product doesn't contain restriction substance, comply ROHS standard. Internal Circuit Diagram : Ver.2.0 Page 1 of 3 BRIGHT LED ELECTRONICS CORP. SINCE 1981 BM-40K57MD Absolute Maximum Ratings(Ta=25) Parameter Power Dissipation Per Dot Forward Current Per Dot Peak Forward Current Per Dot Reverse Voltage Per Dot Operating Temperature Storage Temperature Soldering Temperature (1/16" From Body) Symbol Pd IF IFP (Duty 1/10, 1KHZ) VR Topr Tstg Tsol Rating 160 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 Dot Luminous Intensity Per Dot Reverse Current Per Dot Peak Wave Length Dominant Wave Length Spectral Line Half-width Symbol Condition VF Iv IR p d IF=10mA IF=10mA VR=5V IF=10mA IF=10mA IF=10mA Min. 582 - Typ. 4.2 35.0 590 Max. 5.0 100 592 Unit V mcd A nm nm nm 15 - Ver.2.0 Page 2 of 3 BRIGHT LED ELECTRONICS CORP. SINCE 1981 BM-40K57MD 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 0 500 530 560 Wavelength(nm) 590 620 650 680 Relative Luminous Intensity (@20mA) 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 20 10 0 2.0 1.0 0.0 Forward Current(mA) 10 20 30 40 50 20 40 60 80 100 120 Forward Current(mA) Ambient Temperature Ta( C) Ver.2.0 Page 3 of 3 |
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