LED info
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Posted by H. Dixon on July 27, 2008, 10:46 pm
Please log in for more thread options LED's mean? H. Dixon | |||||||||||||||||||
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Posted by Tom Biasi on July 27, 2008, 11:15 pm
Please log in for more thread options Not a stupid question. See here: http://www.oselectronics.com/ose_p69.htm | |||||||||||||||||||
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Posted by John Popelish on July 27, 2008, 11:55 pm
Please log in for more thread options H. Dixon wrote:
> Stupid question probably but what does the (T1) specification for
> LED's mean? Diameter. For a long time, small electric lamps have been sized by eighths of an inch diameter. The number of eighths of an inch diameter is preceded by the letter T. T1=1/8th inch diameter T1 3/4=1.75/8th inch diameter (~.219 inch). T2=2/8th = 1/4 inch diameter, etc. The same diameter standard was carried over for many LED lamps, though mm diameters are also very common. 3mm is about a T1. 5mm is about a T1 1/2. -- Regards, John Popelish | |||||||||||||||||||
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Posted by H. Dixon on July 28, 2008, 9:14 am
Please log in for more thread options > H. Dixon wrote:
> > Stupid question probably but what does the (T1) specification for
> > LED's mean? >
> Diameter. =A0For a long time, small electric lamps have been > sized by eighths of an inch diameter. =A0The number of eighths > of an inch diameter is preceded by the letter T. =A0T1=3D1/8th > inch diameter =A0T1 3/4=3D1.75/8th inch diameter (~.219 inch). > T2=3D2/8th =3D 1/4 inch diameter, etc. The same diameter > standard was carried over for many LED lamps, though mm > diameters are also very common. =A03mm is about a T1. =A05mm is > about a T1 1/2. > > -- > Regards, > > John Popelish Thank you! | |||||||||||||||||||
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Posted by Don Klipstein on July 28, 2008, 3:15 pm
Please log in for more thread options > H. Dixon wrote:
> > Stupid question probably but what does the (T1) specification for
> > LED's mean? >
> Diameter. For a long time, small electric lamps have been > sized by eighths of an inch diameter. The number of eighths > of an inch diameter is preceded by the letter T. T1=1/8th > inch diameter T1 3/4=1.75/8th inch diameter (~.219 inch). > T2=2/8th = 1/4 inch diameter, etc. The same diameter > standard was carried over for many LED lamps, though mm > diameters are also very common. 3mm is about a T1. 5mm is > about a T1 1/2. The common 5 mm size bullet shape LEDs are the ones known as T1-3/4 LEDs. - Don Klipstein (don@misty.com) | |||||||||||||||||||
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> LED's mean?
>
> H. Dixon