3
Electrical/Optical Characteristics at TA = 25°C
Parameter Symbol Min. Typ. Max. Units Test Conditions
Forward Voltage IF = 20 mA
Amber (λd = 590 nm) 2.02
Red-Orange (λd = 615 nm) VF1.94 2.4 V
Red (λd = 626 nm) 1.90
Reverse Voltage VR520 VI
R
= 100 µA
Peak Wavelength Peak of Wavelength of
Amber 592 Spectral Distribution
Red-Orange λPEAK 621 nm at IF = 20 mA
Red 635
Spectral Halfwidth ∆λ1/2 17 nm Wavelength Width at
Spectral Distribution
1/2 Power point at
IF = 20 mA
Speed of Response τs20 ns Exponential Time
Constant, e-t/τs
Capacitance C 40 pF VF = 0, f = 1 MHz
Thermal Resistance RΘJ-PIN 240 °C/W LED Junction-to-Cathode
Lead
Luminous Efficacy[5] Emitted Luminous
Amber 500 Power/Emitted Radiant
Red-Orange ηv235 lm/W Power
Red 155
Note:
1. The radiant intensity, Ie, in watts per steridian, may be found from the equation Ie = Iv/ηv, where Iv is the luminous intensity in
candelas and ηv is the luminous efficacy in lumens/watt.
Absolute Maximum Ratings at TA = 25°C
Parameter 5 mm 3 mm
DC Forward Current 50 mA[1,3,4] 30 mA[2,3,4]
Peak Pulsed Forward Current [3,4] 70 mA 50 mA
Average Forward Current 30 mA 30 mA
Reverse Voltage (IR = 100 µA) 5 V 5 V
LED Junction Temperature 130°C 110°C
Operating Temperature -40°C to +100°C -40°C to +80°C
Storage Temperature -40°C to +120°C -40°C to +85°C
Dip/Drag Solder Temperature 260°C for 5 seconds
Wave Solder Temperature 245°C for 3 seconds
[1.59 mm (0.060 in.) below seating plane]
Notes:
1. Derate linearly as shown in Figure 4.
2. Derate linearly as shown in Figure 5.
3. For long term performance with minimal light output degradation, drive currents between 10 and 30 mA are recommended.
4. Please contact your Agilent sales representative about operating currents below 10 mA.