T-1(3mm) CYLINDRICAL LAMPS L-474I HIGH EFFICIENCY L-474G GREEN L-
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T-1(3mm) CYLINDRICAL LAMPS
L-474I HIGH EFFICIENCY L-474G GREEN L-474Y YELLOW
Package Dimensions
VIEWING ANGLE. lLOW POWER CONSUMPTION. lRELIABLE RUGGED. lLONG LIFE SOLID STATE RELIABILITY. lBOTH TRANSPARENT WATER CLEAR TYPE AVAILABLE.
Description
Green source color devices made with Gallium Phosphide Light Emitting Diode. High Efficiency source color devices made with Gallium Arsenide Phosphide Gallium Phosphide Orange Light Emitting Diode. Yellow source color devices made with Gallium Arsenide Phosphide Gallium Phosphide Yellow Light Emitting Diode.
Notes: dimensions millimeters (inches). Tolerance ±0.25(0.01") unless otherwise noted. Lead spacing measured where lead emerge package. Specifications subjected change without notice.
Selection Guide
(mcd) Min.
L-474IT HIGH EFFICIENCY (GaAsP/GaP) L-474EC L-474GT GREEN (GaP) L-474GC L-474YT L-474YC YELLOW (GaAsP/GaP) WATER CLEAR YELLOW TRANSPARTENT WATER CLEAR 130° 130° 130° WATER CLEAR GREEN TRANSPARENT 12.5 130° 130° TRANSPARENT
Part
Dice
Lens Type
Viewing Angle 21/2
130°
Max.
12.5
Note: angle from optical centerline where luminous intensity optical centerline value.
2-L474-1
Electrical Optical Characteristics TA=25°C
Symbol Parameter Device
High Efficiency Green Yellow
Typ.
Max.
Units
Test Conditions
peak
Peak Wavelength
IF=20mA
Spectral Line Halfwidth
High Efficiency Green Yellow
IF=20mA
Capacitance
High Efficiency Green Yellow
VF=0V;f=1MHz
Forward Voltage
High Efficiency Green Yellow
IF=20mA
Reverse Current
Absolute Maximum Ratings TA=25°C
Parameter
Power dissipation Forward Current Peak Forward Current Reverse Voltage Operating/Storage Temperature Lead Soldering Temperature
Notes: 1/10 Duty Cycle, 0.1ms Pulse Width. below package base.
High Efficiency
Green
Seconds
Yellow
Units
2-L474-2
High Efficiency L-474IT, L-474EC
Green
L-474GT, L-474GC
2-L474-3
Yellow
L-474YT, L-474YC
2-L474-4
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