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| Surface Mount Chip LEDs Description The MSL-174UG, a YELLOW GREEN source Chip LED device, is designed in an indnstry standard package suitable for SMT assembly method. It utilizes AlGaInP on GaAs LED chip technology and water clear epoxy package. 2.0 ( 0.079) 1.40 (0.055) 0.80 (0.031) 1.25 ( 0.049 ) MSL-174UG Package Dimensions CATHODE MARK POLARITY 1.25 (0.049) Applications l l l l 0.30 ( 0.012 ) Small Size Industry Standard Footprint(0805) Compatible with IR Solder process Availalble in 8 mm Tape on 7"(178mm) Diameteer Reels R0.2 (0.008) PCB 0.40 (0.016) SOLDERING TERMINAL Recommended Solder Patterns Features l l l l Push-Button Backlighting LCD Backlighting Symbol Backlighting Front Panel Indicator 1.20 (0.047) 0.90 (0.035) 1.20 (0.047) Absolute Maximum Ratings NOTE: 1. All dimensions are in millimeter (inches) 2. Tolerance is 0.1mm (.004") unless otherwise specified. @ TA=25oC Parameter Peak Forward Current(1/10 Duty Cycle@1KHz ) DC Forward Current Power Dissipation Reverse Voltage Operating Temperature Range Storage Temperature Range Symbol IFP IF PD VR TOPR TSTG Maximum Rating 100 25 68 5 -20 C to +80 C o o Unit mA mA mW V -30oC to +100oC Unity Opto Technology Co., Ltd. 1.20 (.047) 11/24/2000 MSL-174UG Optical-Electrical Characteristics Parameter Luminous Intensity Forward Voltage Reverse Current Peak/Dominant Wavelength Spectral Linewidth Viewing Angle Test Conditions IF=20mA IF=20mA VR=5V IF=20mA IF=20mA IF=20mA Symbol IV VF IR p/d 21/2 Min . 30 Typ . 80 2.2 575/574 20 130 Max . 2.5 10 - @ TA=25oC Unit . mcd V A nm nm deg. Typical Optical-Electrical Characteristic Curves 1 50 40 Relative Luminous Intensity 0.5 Forward Current IF (mA) 30 20 10 0 0 1 2 3 4 0 520 560 590 630 670 Wavelength (nm) FIG.1 RELATIVE INTENSITY LUMINOUS VS. WAVELENGTH Forward Current IF (mA) 40 Forward Voltage (V) FIG.2 FORWARD CURRENT VS. FORWARD VOLTAGE. 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 5 10 15 20 25 30 20 10 0 0 25 50 75 100 Ambient Temperature( ) FIG. 3 FORWARD CURRENT VS. AMBIENT TEMPERATURE. Relative Luminous Intensity 10 Relative Luminous Intensity ( Normalized at IF=20 mA ) Forward current (mA) FIG. 4 RELATIVE LUMINOUS INTENSITY VS. FORWARD CURRENT. Relative Luminous Intensity 0o 10o 20o 30 40 1.0 0.9 0.8 0.5 0.3 0.1 0.2 0.4 0.6 50 60 70 80 90 1 0.1 0 20 30 50 70 90 o Ambient Temperature ( C) FIG.5 LUMINOUS INTENSITY VS. AMBIENT TEMPERATURE FIG.6 RADIATION DIAGRAM Unity Opto Technology Co., Ltd. 11/24/2000 |
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