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PDF LTST-C190KSKT Data sheet ( Hoja de datos )
| Número de pieza | LTST-C190KSKT | |
| Descripción | SMD LED | |
| Fabricantes | Lite-On Technology | |
| Logotipo |  |
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SMD LED
Product Data Sheet
LTST-C190KSKT
Spec No.: DS-22-99-0189
Effective Date: 10/26/2012
Revision: I
LITE-ON DCC
RELEASE
BNS-OD-FC001/A4
LITE-ON Technology Corp. / Optoelectronics
No.90,Chien 1 Road, Chung Ho, New Taipei City 23585, Taiwan, R.O.C.
Tel: 886-2-2222-6181 Fax: 886-2-2221-1948 / 886-2-2221-0660
http://www.liteon.com/opto
1 page  
LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
Electrical Optical Characteristics At Ta=25℃
Parameter
Symbol
Part No.
LTST-
Min. Typ. Max. Unit Test Condition
Luminous Intensity
IV
C190KSKT 28.0
- 180.0 mcd
IF = 20mA
Note 1
Viewing Angle
2θ1/2 C190KSKT
130
deg Note 2 (Fig.5)
Peak Emission Wavelength λP C190KSKT
588
nm
Measurement
@Peak (Fig.1)
Dominant Wavelength
λd C190KSKT 584.5 - 597.0 nm
IF = 20mA
Note 3
Spectral Line Half-Width
Δλ C190KSKT
15
nm
Forward Voltage
VF C190KSKT 1.80 - 2.40 V
IF = 20mA
Reverse Current
IR C190KSKT
10 μA
VR = 5V
Notes: 1. Luminous intensity is measured with a light sensor and filter combination that approximates the
CIE eye-response curve.
2. θ1/2 is the off-axis angle at which the luminous intensity is half the axial luminous intensity.
3. The dominant wavelength, λd 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.
Part No. : LTST-C190KSKT
BNS-OD-C131/A4
Page : 4 of 12
5 Page 
LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
5. Drive Method
An LED is a current-operated device. In order to ensure intensity uniformity on multiple LEDs connected in
parallel in an application, it is recommended that a current limiting resistor be incorporated in the drive circuit,
in series with each LED as shown in Circuit A below.
Circuit model A
LED
Circuit model B
LED
(A) Recommended circuit.
(B) The brightness of each LED might appear different due to the differences in the I-V characteristics
of those LEDs.
6. ESD (Electrostatic Discharge)
Static Electricity or power surge will damage the LED.
Suggestions to prevent ESD damage:
Use of a conductive wrist band or anti-electrostatic glove when handling these LEDs.
All devices, equipment, and machinery must be properly grounded.
Work tables, storage racks, etc. should be properly grounded.
Use ion blower to neutralize the static charge which might have built up on surface of the LED’s plastic
lens as a result of friction between LEDs during storage and handling.
ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current, low forward voltage,
or “ no lightup ” at low currents.
To verify for ESD damage, check for “ lightup ” and Vf of the suspect LEDs at low currents.
The Vf of “ good ” LEDs should be >[email protected] for InGaN product and >[email protected] for AlInGaP product.
Part No. : LTST-C190KSKT
BNS-OD-C131/A4
Page : 10 of 12
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