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SMC490
v 2.1 06.11.2014
Description
SMC490 is a surface mount InGaN LED with a typical peak wavelength of 490 nm and radiation of
6.1 mW. It comes in SMD package (ceramic) and is sealed with silicone or epoxy resin.
Maximum Ratings
(TCASE=25°C)
Parameter
Values
Symbol
Min.
PD
IF
IFP
VF
RTHJA
TJ
TCASE
TSTG
TSLD
Power Dissipation
Forward Current
1
Pulse Forward Current *
Reverse Voltage
Thermal Resistance
Junction Temperature
Operating Temperature
Storage Temperature
2
Lead Solder Temperature *
Unit
Max.
190
50
100
5
150
120
+ 100
+ 100
+ 250
- 40
- 40
mW
mA
mA
V
K/W
°C
°C
°C
°C
1
* duty=1%, pulse width = 10 µs
2
* must be completed within 3 seconds
Electro-Optical Characteristics
Parameter
Symbol Conditions
λP
∆λ
VF
VFP
Peak Wavelength
Half Width
Forward Voltage
1
Radiated Power *
2
(TCASE=25°C)
PO
Radiant Intensity *
IE
Brightness
Viewing Angle
Rise Time
Fall Time
IV
φ
tR
tF
IF=20mA
IF=20mA
IF=20mA
IFP=100mA
IF=20mA
IFP=100mA
IF=20mA
IFP=100mA
IF=20mA
IF=20mA
IF=20mA
IF=20mA
Min.
480
Values
Typ.
490
32
3.4
4.6
6.1
22
4.2
15
430
128
70
140
Max.
500
3.8
Unit
nm
nm
V
mW
mW/sr
mcd
deg.
ns
ns
1
* measured by S3584-08
2
* measured by CIE127-2007 Condition B
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Typical Performance Curves
Rel. Radiant Intensity vs. Forward Current
Forward Current [mA]
Relative Radiant Intensity [A.U.]
Forward Current vs. Forward Voltage
Forward Current [mA]
Forward Current vs. Pulse Duration
Allowed Forward Current vs. Ambient
Temperature
Forward Current [mA]
Allowable Forward Current [mA]
Forward Voltage [V]
Ambient Temperature [°C]
Forward Voltage vs. Ambient Temperature
Rel. Radiant Intensity vs. Ambient Temperature
Forward Voltage [V]
Relative Radiant Intensity [A.U.]
Duration tw [ms]
Ambient Temperature [°C]
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Ambient Temperature [°C]
2
Relative Spectral Emission
Peak Wavelength [nm]
Relative Radiant Intensity [A.U.]
Peak Wavelength vs. Ambient Temperature
Wavelength [nm]
Radiation Characteristics
Radiation Characteristics
Angle (deg.)
Relative Radiant Intensity [A.U.]
Ambient Temperature [°C]
Relative Radiant Intensity (A.U.)
Angle [edg.]
Outline Dimensions
SMC490
flat
Lead
Description
Pin 1 (mark)
Pin 2
LED Cathode
LED Anode
All Dimensions in mm
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Precautions
Soldering:
•
•
•
•
•
Do avoid overheating of the LED
Do avoid electrostatic discharge (ESD)
Do avoid mechanical stress, shock, and vibration
Do only use non-corrosive flux
Do not apply current to the LED until it has cooled down to room temperature after soldering
Recommended soldering conditions:
This LED is designed to be reflow soldered on to a PCB. If dip soldered or hand soldered, its
reliability cannot be guarantee.
Nitrogen reflow soldering is recommended. Air flow soldering conditions can cause optical
degradation, caused by heat and/or atmosphere.
IR Reflow Soldering Profile
(Lead-free Solder)
Recommended Soldering Patterns
Unit: mm
Above table specifies the maximum allowed duration and temperature during soldering. It is
strongly advised to perform soldering at the shortest time and lowest temperature possible.
Cleaning:
Cleaning with isopropyl alcohol, propanol, or ethyl alcohol is recommended
DO NOT USE acetone, chloroseen, trichloroethylene, or MKS
DO NOT USE ultrasonic cleaners
Static Electricity:
LEDs are sensitive to electrostatic discharge (ESD). Precautions against ESD must be taken
when handling or operating these LEDs. Surge voltage or electrostatic discharge can result in
complete failure of the device.
Radiation:
Those LEDs do emit invisible light, which is invisible and may cause cancer. Do avoid exposure
to the emitted light. It is further advised to attach a warning label on products/systems.
Operation:
Do only operate LEDs with a current source.
Running these LEDs from a voltage source will result in complete failure of the device.
Current of a LED is an exponential function of the voltage across it. Usage of current regulated
drive circuits is mandatory.
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The above specifications are for reference purpose only and subjected to change without prior notice
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