LG Y870
21 Version 1.2 | 2018-04-05
Glossary
1) Brightness: Brightness values are measured during a current pulse of typically 25 ms, with an internal
reproducibility of ±8 % and an expanded uncertainty of ±11 % (acc. to GUM with a coverage factor of
k = 3).
2) Reverse Operation: Reverse Operation of 10 hours is permissible in total. Continuous reverse opera-
tion is not allowed.
3) Wavelength: The wavelength is measured at a current pulse of typically 25 ms, with an internal repro-
ducibility of ±0.5 nm and an expanded uncertainty of ±1 nm (acc. to GUM with a coverage factor of k =
3).
4) Forward Voltage: The forward voltage is measured during a current pulse of typically 8 ms, with an
internal reproducibility of ±0.05 V and an expanded uncertainty of ±0.1 V (acc. to GUM with a coverage
factor of k = 3).
5) Thermal Resistance: Rth max is based on statistic values (6
σ
).
6) Thermal Resistance: RthJA results from mounting on PC board FR 4 (pad size 16 mm² per pad)
7) Typical Values: Due to the special conditions of the manufacturing processes of LED, the typical data
orcalculatedcorrelationsoftechnicalparameterscanonlyreectstatisticalgures.Thesedonotnec-
essarilycorrespondtotheactualparametersofeachsingleproduct,whichcoulddierfromthetypical
data and calculated correlations or the typical characteristic line. If requested, e.g. because of technical
improvements, these typ. data will be changed without any further notice.
8) Characteristic curve:Intherangewherethelineofthegraphisbroken,youmustexpecthigherdier-
ences between single LEDs within one packing unit.
9) Tolerance of Measure:Unlessotherwisenotedindrawing,tolerancesarespeciedwith±0.1and
dimensionsarespeciedinmm.
10) Tape and Reel:Alldimensionsandtolerancesarespeciedacc.IEC60286-3andspeciedinmm.