Na matou afifiina nei 680nm LED leai se fanau ma le 3.5 * 2.8 * 1.9mm SMD LED mataupu. O le wavelength tufatufaina o wavelength uma o le malamalama i lenei utupoto e le o le tutusa tutusa ma le tuaoi o lambda λp . O le mea matou te lagona o le maopoopo faʻaiuga o gaioiga a taʻitasi wavelength. E tutusa ma le tasi wavelength o malamalama. O le wavelength aoga o lambda λ D. E pei ona tatou iloa, o le ai ai ni faʻailoga o le a faʻaalia i le LED datasheet: " λp " ma le " λ D ". Ona o le a le uiga? E masani ona e vaʻai i se moli o le malamalama, e le o se tasi wavelength o le malamalama, e aofia ai le tuʻufaʻatasia o le tele wavelengths. O le malosiʻaga o le wavelength o le malamalama e tele atu nai lo o isi wavelengths , o lenei wavelength o le wavelength tumutumu o le laau faalava. i le piʻoga tufatufaina wavelength, o se tūsaʻo laina i le va o le abscissa ma le vaevaeina piʻoga le eria i lalo o le piʻoga i itu tutusa e lua. o le tūsaʻo taua wavelength tutusa o lambda λ D.

- tulaga tapulaa -

O nei SMD LED mataupu o loʻo avanoa foi mo IR LED, UV LED, Blue SMD LED, Red SMD LED, Amber LED ect.

- Emitting Lanu -

- Parakalafa eletise -

Parameter	Symbol	Rating
Power Dissipation	Pd	250mw
Pulse Forward Current	IFP	300mA
Forward Current	IF	100mA
Reverse Voltage	VR	5V
Junction Temperature	Tj	115°C
Operating Tempertature	Topr	-40 - +80°C
Storage Tempertature	Tstg	-40 - +100°C
Soldering Temperature	Tsol	260°C
Electro-Static-Discharge(HBM)	ESD	3000v
Warranty	Time	5Years
Antistatic bag	Piece	2000Bag
*Pulse Forward Current Condition:Duty 1% and Pulse Width=10us.
*Soldering Condition:Soldering condition must be completed with 3 seconds at 260°C

Parameter	Symbol	Min	Typ	Max	Unit	Test Condition
Luminous Intensity	IV	0.2	0.3	0.5	lm	IF=20mA
		0.5		1		IF=50mA
			1.5			IF=100mA
Viewing Angle	2q1/2		120		deg	IF=100mA
Peak Wavelength	λp	680	690	695	nm	IF=100mA
Spectral Bandwidth	Dl		45		nm	IF=100mA
Forward Voltage	VF	1.8	2.0	2.4	V	IF=20mA
		1.9	2.2	2.5		IF=50mA
			2.5			IF=100mA
Reverse Current	IR			5	uA	VR=5V
*Luminous Intensity is measured by ZWL600.
*2q1/2 is the off-axis angle at which the luminous intensity is half the axial luminous intensity.
*lD is derived from the CIE chromaticity diagram and represents the single wavelength which defines the color of the device.

- Soʻotaga uaea Auro -

* Ina ia mafai ona tausia uma o Umi umi uumi olaga, BestLED fale gaosi faʻaaoga maualuga mama auro uaea mo totonu liʻo fesoʻotaʻiga

- Teuina-

* Ina ia mafai ona tausia uma o Umi umi uumi olaga, BestLED fale gaosi faʻaaoga maualuga mama auro uaea mo totonu liʻo fesoʻotaʻiga

-Apalai-

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