Datasheet

LITE-ON TECHNOLOGY CORPORATION
Pr o p e r t y o f L i t e - O n O n ly
Electrical Optical Characteristics At Ta=25
℃
Parameter
Symbol
Part No.
LTST-
Min.
Typ.
Max.
Unit
Test Condition
Luminous Intensity
IV
C191TBKT
28.0
-
180.0
mcd
IF = 20mA
Note 1
Viewing Angle
2
θ
1/2
C191TBKT
130
deg
Note 2 (Fig.6)
Peak Emission Wavelength
λ
P
C191TBKT
468
nm
Measurement
@Peak (Fig.1)
Dominant Wavelength
λ
d
C191TBKT
465.0
-
475.0
nm
IF = 20mA
Note 3
Spectral Line Half-Width
Δλ
C191TBKT
25
nm
Forward Voltage
VF
C191TBKT
2.80
-
3.80
V
IF = 20mA
Reverse Current
IR
C191TBKT
10
μ
A
VR = 5V
Note 5
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 handling the LED. All devices, equipment and machinery must be properly grounded.
5. Reverse voltage (VR) condition is applied to IR test only. The device is not designed for reverse operation.
Part No. : LTST-C191TBKT
Page : 4 of 12
BNS-OD-C131/A4