BRIGHT LED ELECTRONICS CORP. BT-A412ND SINCE 1981 ● Features : 1. 0.40 inch (10.20mm) Digit Height. 2. Continuous uniform segments. 3. Low power requirement. 4. Excellent characters appearance. 5. Solid state reliability. 6. Categorized for luminous intensity. 7. Direct drive common anode. ● 1. Description : The BT-A412ND is a 10.20 mm (0.40") high three digit seven segments display. 2. This product use green chips, which are made from GaP on GaP substrate. 3. This product have a black face and ● Package Dimensions : 5.20(.205) 8 10.20(.402) PIN 1. 16.00(.630) 12.7(.500) 0.51(.020) 20.10(.791) 7.0(.276) 2.54x7=17.78 (.100x7=.700) 3.0(.118) MIN. 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. white segments. ● Internal Circuit Diagram : Ver.1.0 Page 1 of 3 BRIGHT LED ELECTRONICS CORP. BT-A412ND 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 - 2.1 2.5 V Luminous Intensity Per Segment Iv IF=10mA - 3.0 - mcd Reverse Current Per Segment IR VR=5V - - 100 µA Peak Wave Length λp IF=10mA - 568 - nm Dominant Wave Length λd IF=10mA 569 - 574 nm Spectral Line Half-width ∆λ IF=10mA - 30 - nm Ver.1.0 Page 2 of 3 BRIGHT LED ELECTRONICS CORP. BT-A412ND 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 0 460 490 520 550 Wavelength(nm) Fig.2 Forward Current VS. Forward Voltage Relative Luminous Intensity (@20mA) Forward Current (mA) 50 40 30 20 10 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 50 610 640 Fig.3 Relative Luminous Intensity VS. Ambient Temperature 2.5 2.0 1.5 1.0 0.5 0 -40 50 Forward Current(mA) 3.0 580 -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 20 40 60 80 100 120 Ambient Temperature Ta( C) Ver.1.0 Page 3 of 3