SPEC NO: DSAF2550 REV NO: V.6B DATE: JAN/22/2015 PAGE: 2 OF 6
APPROVED: WYNEC CHECKED: Allen Liu DRAWN: Q.M.Chen ERP: 1101004804
Selection Guide
Notes:
1. θ1/2 is the angle from optical centerline where the luminous intensity is 1/2 of the optical peak value.
2. Luminous intensity/ luminous Flux: +/-15%.
3. Luminous intensity value is traceable to the CIE127-2007 compliant national standards.
Absolute Maximum Ratings at TA=25°C
Electrical / Optical Characteristics at TA=25°C
Notes:
1. 1/10 Duty Cycle, 0.1ms Pulse Width.
2. 2mm below package base.
3. 5mm below package base.
Part No. Dice Lens Type
iewing
Angle [1]
Min. Typ. 2θ1/2
WP483YDT Yellow (GaAsP/GaP) Yellow Diffused 1.2 3
100
°
Iv (mcd) [2]
@ 10mA
Symbol Parameter Device Typ. Max. Units Test Conditions
λpeak Peak Wavelength Yellow 590 nm I
F=20mA
λD [1] Dominant Wavelength Yellow 588 nm I
F=20mA
Δλ1/2 Spectral Line Half-width Yellow 35 nm I
F=20mA
C Capacitance Yellow 20 pF V
F=0V;f=1MHz
V
F [2] Forward Voltage Yellow 2.1 2.5 V IF=20mA
I
R Reverse Current Yellow 10 uA VR = 5V
Parameter Yellow Units
Power dissipation 75 mW
DC Forward Current 30 mA
Peak Forward Current [1] 140 mA
Reverse Voltage 5 V
Operating/Storage Temperature -40°C To +85°C
Lead Solder Temperature [2] 260°C For 3 Seconds
Lead Solder Temperature [3] 260°C For 5 Seconds
Notes:
1.Wavelength: +/-1nm.
2.Forward Voltage: +/-0.1V.
3.Wavelength value is traceable to the CIE127-2007 compliant national standards.
4.Excess driving current and/or operating temperature higher than recommended conditions may result in severe light degradation or
premature failure.
