FAQ
FAQ
Q01 How to use LITEON LED Lamp in circuit design?
(1) Circuit model A: One lamp connects one resistor. Brightness can be uniform.
(2) Circuit molde B: Two or more lamps connect one resistor. Brightness will be a little different due to I-V characteristics.
Q02 Can LITEON LED LAMP be passed with IR-reflow process?
IR-reflow is for SMD type LED. Normal lamp LED is thro-hole type, so it can’t be passed with IR-reflow process.
Q03 How many colors can Thru-Hole LED LAMPS of LITEON support?
Color
Wavelength
Chip
White
X: 0.31~0.41
Y: 0.32~0.39
InGaN
Blue
460~475nm
InGaN
Cyan
500~510nm
InGaN
Green
520~535nm
InGaN
Yellow Green
565~575nm
AlGaInP / GaP / GaAsP
Yellow
584~594nm
AlGaInP / GaP / GaAsP
Amber
600~610nm
AlGaInP / GaP / GaAsP
Orange
610~620nm
AlGaInP / GaP / GaAsP
Red
620~660nm
AlGaInP / GaP / GaAsP / AlGaAs
Q04 Product Meet Rohs, Halogen Free, and Pb Free?
The whole Liteon LED Product already pass Rohs, Pb-free and Rohs, and then we provide Halogen Free product to customers, too.
Q05 What is the Luminous Flux?What is the Luminous Flux?
Unit : lumen, Luminous Flux is a measure of the power of visible light. Photopic flux, express in lumens, is weighted to match the responsivity of human eyes.
Q06 SMD LED Category?
(1) PCB Substrate, call Chip LED.
(2) Lead - Frame Substrate, call PLCC.
Q07 What is soldering condition of LED Lamp?

 Soldering iron and wave soldering is only one time.

Soldering iron
Wave soldering
Temperature
Soldering time
300°C Max.
3 sec. Max.
(one time only)
Pre-heat
Pre-heat time
Solder wave
Soldering time
100°C Max.
60 sec. Max.
260°C Max.
5 sec. Max.
Q08 How to select LED Lamp in Liteon Data sheet?
In LITEON Data sheet, we will show IV, Hue, Vf, and view angle. Users can select the suitable spec. from LITEON’s LED lamp.
Q09 How to check view angle in LED lamp?
Circuit model A: One lamp connects one resistor. Brightness can be uniform.
(1) 3mm & 5mm lamps are normal lens, so view angle will be uniform in any direction.
(2) Oval lamp is ellipse lens, so view angle is different in X-Y axis.
Q10 How much operation current is for LITEON LED lamp?

Indicator lamp:

Lamp LED
Operation current
Chip
White
5~20mA
InGaN
Blue
5~20mA
InGaN
Cyan
5~20nm
InGaN
Green
5~20nm
InGaN
Yellow Green
2~20nm
GaP / GaAsP
Yellow
2~20nm
GaP / GaAsP
Amber
2~20nm
GaP / GaAsP
Orange
2~20nm
GaP / GaAsP
Red
2~20nm
AlGaInP / GaP / GaAsP / AlGaAs
 
High brightness lamp
Lamp LED
Operation current
Chip
White
20~30mA
InGaN
Blue
20~30mA
InGaN
Cyan
20~30nm
InGaN
Green
20~30nm
InGaN
Yellow Green
20~30nm
AlGaInP
Yellow
20~50nm
AlGaInP
Amber
20~50nm
AlGaInP
Orange
20~50nm
AlGaInP
Red
20~50mA
AlGaInP
of
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