SMD LED
Product Data Sheet
LTST-T680KGWT
Spec No.: DS22-2013-0344
Effective Date: 09/26/2014
Revision: A
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
SMD LED
LTST-T680KGWT
1. Description
SMD LEDs from Lite-On are available in miniature sizes and special configurations for automated PC board assembly and
space-sensitive applications. These SMD LEDs are suitable for use in a wide variety of electronic equipment, including cordless
and cellular phones, notebook computers, network systems, home appliances, and indoor signboard applications.
.
1.1 Features
1.2 Applications
Meet ROHS
Package in 8mm tape on 7" diameter reels
EIA STD package
I.C. compatible
Compatible with automatic placement equipment
Compatible with infrared reflow solder process
Preconditioning: accelerate to JEDEC level 3
Telecommunication, Office automation, home appliances,
industrial equipment
Status indicator
Signal and Symbol Luminary
Front panel backlighting
2. Package Dimensions
Part No.
LTST-T680KGWT
Notes:
1.
2.
Lens Color
Diffused
Source Color
AlInGaP Yellow Green
All dimensions are in millimeters.
Tolerance is ±0.2 mm (.008") unless otherwise noted.
1/11
Part No. : LTST-T680KGWT
BNS-OD-FC002/A4
SMD LED
LTST-T680KGWT
3. Rating and Characteristics
3.1 Absolute Maximum Ratings at Ta=25°C
Parameter
LTST-T680KGWT
Unit
Power Dissipation
Peak Forward Current
(1/10 Duty Cycle, 0.1ms Pulse Width)
DC Forward Current
Operating Temperature Range
Storage Temperature Range
72
mW
80
mA
30
mA
-40°C to + 85°C
-40°C to + 100°C
3.2 Suggest IR Reflow Condition for Pb Free Process:
IR-Reflow Soldering Profile for lead free soldering (Acc. to J-STD-020B)
2/11
Part No. : LTST-T680KGWT
BNS-OD-FC002/A4
SMD LED
LTST-T680KGWT
3.3 Electrical / Optical Characteristics at Ta=25°C
Part No.
Parameter
Symbol
LTST-
Luminous Intensity
IV
T680KGWT
56.0
-
180.0
mcd
Min.
Typ.
Max.
Unit
Test
Condition
IF = 20mA
Note 1
Note 2 (Fig.5)
Measurement
@Peak (Fig.1)
IF = 20mA
Note 3
Viewing Angle
2
1/2
P
d
VF
T680KGWT
-
120
-
deg
Peak Emission Wavelength
T680KGWT
-
575
-
nm
Dominant Wavelength
Spectral Line Half-Width
Forward Voltage
T680KGWT
T680KGWT
T680KGWT
-
-
-
571
15
2.0
-
-
2.4
nm
nm
V
μA
IF = 20mA
VR = 5V
Note 4
Reverse Current
IR
T680KGWT
-
-
10
Notes:
1.
Luminous intensity is measured with a light sensor and filter combination that approximates the CIE
eye-response curve
2.
3.
θ1/2 is the off-axis angle at which the luminous intensity is half the axial luminous intensity.
The dominant wavelength, λd is derived from the CIE chromaticity diagram and represents the single
wavelength which defines the color of the device.
4.
Reverse voltage (VR) condition is applied to IR test only. The device is not designed for reverse operation.
3/11
Part No. : LTST-T680KGWT
BNS-OD-FC002/A4
SMD LED
LTST-T680KGWT
4. Bin Rank
Vf Rank
Forward Voltage
Bin Code
D2
D3
D4
Min
1.8
2.0
2.2
Tolerance on each Forward Voltage bin is +/-0.1 volt
Unit: V @20mA
Max.
2.0
2.2
2.4
IV Rank
Luminous Intensity
Bin Code
P2
Q1
Q2
R1
R2
Min.
56.0
71.0
90.0
112.0
140.0
Tolerance on each Intensity bin is +/-11%
Unit : mcd @20mA
Max.
71.0
90.0
112.0
140.0
180.0
Wd Rank
Dominant Wavelength
Bin Code
B
C
D
E
Min.
564.5
567.5
570.5
573.5
Unit : nm @20mA
Max.
567.5
570.5
573.5
576.5
Tolerance for each Dominate Wavelength bin is +/- 1nm
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Part No. : LTST-T680KGWT
BNS-OD-FC002/A4
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