LITE-ON TECHNOLOGY CORPORATION
Pro p er t y o f L it e -O n O n l y
Electrical Optical Characteristics At Ta=25
℃
℃℃
℃
Parameter Symbol
Part No
.
LTST-
Min. Typ. Max.
Unit Test Condition
Luminous Intensity IV C190KRKT 18.0 - 180.0
mcd
IF = 20mA
Note 1
Viewing Angle
2
θ
1/2
C190KRKT
130 deg Note 2 (Fig.5)
Peak Emission Wavelength
λ
P
C190KRKT
639 nm
Measurement
@Peak (Fig.1)
Dominant Wavelength
λ
d
C190KRKT
631 nm
IF = 20mA
Note 3
Spectral Line Half-Width
Δλ
C190KRKT
20 nm
Forward Voltage VF
C190KRKT
1.60 - 2.40 V IF = 20mA
Reverse Current IR
C190KRKT
10
μ
A
VR = 5V
Notes: 1. Luminous intensity is measured with a light sensor and filter combination that approximates the
CIE eye-response curve.
2.
θ
1/2 is the off-axis angle at which the luminous intensity is half the axial luminous intensity.
3. The dominant wavelength,
λ
d is derived from the CIE chromaticity diagram and represents the
single wavelength which defines the color of the device.
4. Caution in ESD:
Static Electricity and surge damages the LED. It is recommend to use a wrist band or anti-electrostatic
Glove when handing the LED. All devices, equipment and machinery must be properly grounded.
Part No. : LTST-C190KRKT Page : 4 of 12
BNS-OD-C131/A4
