LITE-ON
Features
TECHNOLOGY
CORPORATION
Property of Lite-On Only
* Super thin (0.55H mm) Chip LED.
* Ultra bright InGaN White Chip LED.
* Package in 8mm tape on 7" diameter reels.
* Compatible with automatic placement equipment.
* Compatible with infrared and vapor phase reflow solder process.
* EIA STD package.
* I.C. compatible.
Package
Dimensions
Part No.
LTW-191TS
Notes:
1. All dimensions are in millimeters (inches).
Lens
Yellow
Emitted Color
InGaN White
2. Tolerance is ± 0.10 mm (.004") unless otherwise noted.
Part
No. : LTW-191TS
Page :
1
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11
BNS-OD-C131/A4
LITE-ON
Absolute
Maximum
Ratings
At
TECHNOLOGY
Ta=25℃
LTW-191TS
70
100
20
0.25
5
CORPORATION
Property of Lite-On Only
Parameter
Power Dissipation
Peak Forward Current
(1/10 Duty Cycle, 0.1ms Pulse Width)
DC Forward Current
Derating Linear From 25°C
Reverse Voltage
Operating Temperature Range
Storage Temperature Range
Wave Soldering Condition
Suggest IR Reflow Condition :
Unit
mW
mA
mA
mA/°C
V
-20°C to + 80°C
-55°C to + 105°C
260°C For 5 Seconds
R e c o m m e n d e d P ro file B e t w e e n A s s e m b le A n d H e a t-R e s is t a n c e L in e
T h e P ro file is a v a ila b le th a t m u s t t o u s e S n A g
Cu
s o ld e r p a s te
Part
No. : LTW-191TS
Page :
2
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BNS-OD-C131/A4
LITE-ON
Electrical
Optical
Characteristics
TECHNOLOGY
At
Ta=25℃
CORPORATION
Property of Lite-On Only
Parameter
Symbol
Part No.
LTW-
Min.
Typ.
Max.
Unit
Test Condition
Luminous Intensity
IV
191TS
250.0
mcd
IF = 20mA
Note 1, 2, 5
Viewing Angle
2
θ
1/2
191TS
130
deg
Fig.6
IF = 20mA
Note 3, 5
Fig.1
x
Chromaticity Coordinates
y
191TS
0.294
0.286
Forward Voltage
VF
191TS
2.8
3.2
3.8
V
IF = 20mA
Reverse Current
IR
191TS
10
µA
VR = 5V
Note : 1. Luminous intensity is measured with a light sensor and filter combination that approximates the
CIE eye-response curve.
2. Iv classification code is marked on each packing bag.
3. The chromaticity coordinates (x, y) is derived from the 1931 CIE chromaticity diagram.
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. Tester
PR704 is for the chromaticity coordinates (x, y).
EG&G is for Iv
6. The chromaticity coordinates (x, y) guarantee should be added ± 0.01 tolerance.
Part
No. : LTW-191TS
Page :
3
of
11
BNS-OD-C131/A4
LITE-ON
TECHNOLOGY
CORPORATION
Property of Lite-On Only
Typical
(25
℃
Electrical
Ambient
/
Optical
Characteristics
Unless
Otherwise
Curves
Noted)
Temperature
Part
No. : LTW-191TS
Page :
4
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11
BNS-OD-C131/A4
LITE-ON
Bin Code List
TECHNOLOGY
CORPORATION
Property of Lite-On Only
VF Spec. Table
VF Bin
2
3
4
5
6
Forward Voltage
(V) at IF = 20mA
Min.
Max.
2.80
3.00
3.00
3.20
3.20
3.40
3.40
3.60
3.60
3.80
Tolerance on each Forward Voltage bin is +/-0.1 volt
IV Spec. Table
IV Bin
Luminous Intensity (mcd) at IF = 20mA
Min.
Max.
S
180.0
280.0
T
280.0
450.0
Tolerance on each Luminous Intensity bin is +/- 15%.
Hue Spec. Table
Hue Bin
S1
S2
S3
S4
S5
S6
x
y
x
y
x
y
x
y
x
y
x
y
Color bin limits at IF = 20mA
CIE 1931Chromaticity coordinates
0.274
0.274
0.294
0.226
0.258
0.286
0.274
0.274
0.294
0.258
0.291
0.319
0.294
0.294
0.314
0.254
0.286
0.315
0.294
0.294
0.314
0.286
0.319
0.347
0.314
0.314
0.334
0.282
0.315
0.343
0.314
0.314
0.334
0.315
0.347
0.376
0.294
0.254
0.294
0.286
0.314
0.282
0.314
0.315
0.334
0.311
0.334
0.343
Tolerance on each Hue (x, y) bin is +/- 0.01.
C. I. E. 1931 Chromaticity Diagram
0.4
0.35
Y-coordinate
S6
S4
S5
S2
S1
0.3
S3
0.25
0.2
0.25
0.27
0.29
0.31
X-coordinate
0.33
0.35
Part
No. : LTW-191TS
Page :
5
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BNS-OD-C131/A4
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