LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
ROUND TYPE LED LAMPS
LY42840
DATA SHEET
DOC. NO : REV. DATE : :
QW0905-LY42840 A 12 - Oct. - 2005
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LY42840 Page 1/4
Package Dimensions
3.35
6.0
1.5MAX
3.4 25.0MIN
• 0.5TYP 1.0MIN 2.54TYP
+Note : 1.All dimension are in millimeter tolerance is ±0.25mm unless otherwise noted. 2.Specifications are subject to change without notice.
Directivity Radiation
0° -30° 30°
-60°
60°
100% 75% 50%
25%
0
25% 50% 75% 100%
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LY42840 Page 2/4
Absolute Maximum Ratings at Ta=25 ℃
Ratings Parameter Symbol Y Forward Current Peak Forward Current Duty 1/10@10KHz Power Dissipation Reverse Current @5V Operating Temperature Storage Temperature Soldering Temperature IF IFP PD Ir Topr Tstg Tsol 20 80 60 10 -40 ~ +85 -40 ~ +100 Max 260 ℃ for 5 sec Max (2mm from body) mA mA mW UNIT
μA ℃ ℃
Typical Electrical & Optical Characteristics (Ta=25 ℃)
PART NO
MATERIAL Emitted
COLOR
Forward Peak Spectral voltage wave halfwidth length △λ nm @20mA(V) λPnm
Luminous intensity
@10mA(mcd)
Viewing angle 2θ 1/2 (deg)
Lens
Yellow Diffused
Min. Max. Min. Typ. 585 35 1.7 2.6 20 50 68
LY42840
GaAsP/GaP Yellow
Note : 1.The forward voltage data did not including ±0.1V testing tolerance. 2. The luminous intensity data did not including ±15% testing tolerance.
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LY42840 Page3/4
Typical Electro-Optical Characteristics Curve
Y CHIP
Fig.1 Forward current vs. Forward Voltage
1000
Fig.2 Relative Intensity vs. Forward Current
3.0
Forward Current(mA)
100 10 1.0
Relative Intensity Normalize @20mA
1.0 2.0 3.0 4.0 5.0
2.5 2.0 1.5 1.0 0.5 0.0 1.0 10 100 1000
0.1
Forward Voltage(V) Fig.3 Forward Voltage vs. Temperature
1.2
Forward Current(mA) Fig.4 Relative Intensity vs. Temperature
Forward Voltage@20mA Normalize @25℃
Relative Intensity@20mA Normalize @25℃
3.0 2.5 2.0 1.5 1.0 0.5 0.0 -40 -20 0 20 40 60 80 100
1.1
1.0
0.9 0.8 -40 -20 0 20 40 60 80 100
Ambient Temperature( ℃)
Ambient Temperature( ℃)
Fig.5 Relative Intensity vs. Wavelength
Relative Intensity@20mA
1.0
0.5
0.0 500 550 600 650 700
Wavelength (nm)
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LY42840 Page 4/4
Reliability Test:
Test Item
Test Condition
1.Under Room Temperature 2.If=20mA 3.t=1000 hrs (-24hrs, +72hrs)
Description
This test is conducted for the purpose of detemining the resisance of a part in electrical and themal stressed.
Reference Standard
MIL-STD-750: 1026 MIL-STD-883: 1005 JIS C 7021: B-1
Operating Life Test
High Temperature Storage Test
1.Ta=105 ℃±5 ℃ 2.t=1000 hrs (-24hrs, +72hrs)
The purpose of this is the resistance of the device which is laid under ondition of high temperature for hours.
MIL-STD-883:1008 JIS C 7021: B-10
Low Temperature Storage Test
1.Ta=-40 ℃±5℃ 2.t=1000 hrs (-24hrs, +72hrs)
The purpose of this is the resistance of the device which is laid under condition of low temperature for hours.
JIS C 7021: B-12
High Temperature High Humidity Test
1.Ta=65 ℃±5℃ 2.RH=90 %~95 % 3.t=240hrs ±2hrs
The purpose of this test is the resistance of the device under tropical for hous.
MIL-STD-202:103B JIS C 7021: B-11
Thermal Shock Test
1.Ta=105 ℃±5℃&-40 ℃±5℃ (10min) (10min) 2.total 10 cycles
The purpose of this is the resistance of the device to sudden extreme changes in high and low temperature. This test intended to determine the thermal characteristic resistance of the device to sudden exposures at extreme changes in temperature when soldering the lead wire.
MIL-STD-202: 107D MIL-STD-750: 1051 MIL-STD-883: 1011
Solder Resistance Test
1.T.Sol=260 ℃±5℃ 2.Dwell time= 10 ±1sec.
MIL-STD-202: 210A MIL-STD-750: 2031 JIS C 7021: A-1
Solderability Test
1.T.Sol=230 ℃±5℃ 2.Dwell time=5 ±1sec
This test intended to see soldering well performed or not.
MIL-STD-202: 208D MIL-STD-750: 2026 MIL-STD-883: 2003 JIS C 7021: A-2
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