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| BRIGHT LED ELECTRONICS CORP. SINCE 1981 BM-41257ND 1. 2. 3. 4. 5. 6. 7. 8. 9. Features : 4.118 inch (104.6mm) matrix height. Square size 12.0 x 12.0mm. Low power requirement. Excellent characters appearance. Solid state reliability. Multiplex drive , column cathode com. and row anode com. Single color available. Categorized for luminous intensity. Stackable vertically and horizontally. Package Dimensions : 74.80(2.945) 104.60(4.118) 76.20(3.000) PIN 1. 12.0x12.0 (.472x.472) 12.80(.504) 0.80(.031) 3.00(.118) MIN. 5.08x6=30.48(1.200) 1. 2. 3. 4. Description : The BM-41257ND is a 104.6mm (4.118") matrix height 5x7 square matrix display. This product use green chips, which are made from GaP on GaP substrate. This product have a black face and white squares. 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 BM-41257ND Absolute Maximum Ratings(Ta=25) Parameter Power Dissipation Per Square Forward Current Per Square Peak Forward Current Per Square Reverse Voltage Per Square 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 Square Luminous Intensity Per Square Reverse Current Per Square Peak Wave Length Dominant Wave Length Symbol Condition VF Iv IR p d IF=10mA IF=10mA VR=5V IF=10mA IF=10mA Min. 569 - Typ. 4.2 15.0 568 - Max. 5.0 100 574 - Unit V mcd A nm nm nm Spectral Line Half-width http://www.brtled.com IF=10mA 30 Ver.1.0 Page 2 of 3 BRIGHT LED ELECTRONICS CORP. SINCE 1981 BM-41257ND 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 0 460 490 520 Wavelength(nm) 550 580 610 640 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 2.0 Forward Current(mA) 1.0 http://www.brtled.com 30 20 10 0 10 20 30 40 50 20 40 60 80 100 120 0.0 0 Forward Current(mA) Ambient Temperature Ta( C) Ver.1.0 Page 3 of 3 |
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