[quote=Lexel]
Then you need nothing special, a single soldering Iron + a blob of solder will unsolder these without any problems.
But if I look at this board - one resistor, 16 tiny LEDs and a very thin PCB - buying those in different colours should be very cheap
Ah, thank you for the correction. I’ve only got 0805 and 0604 on hand, so guess I need to place a parts order before my light gets here.
0403 as if I dont need more stress
[quote=L4M4]
I like the way you think! Just get it done.
Now to track down some 0403s.
Regarding color, it seems like I read somewhere on one of millions of threads that the color green is the best for signalling or seeing in a busy environment because something to do with how we see colors. Does that sound like BS?
I intend to use the secondary emitters for location purposes only. Other people may be handling it or it may get jumbled into the mess while camping or something. Wanted to put a color on that is most conspicuous to our eyes.
Also, if anyone hasn’t had the luxury of using a battery with this capacity yet: if you don’t try to light up the night it will last for an amazing length of time. Unbelievable.
Finally, for size reference, if anyone has a Convoy BD06 this is very similar in size if you were to cut the head off the BD06 at the groove directly above the switch.
I am a novice but I would like to replace led to red.
I have some 0805 led they measure 3.21mm x 1.5mm.
That leads me to believe that the 0403 led is less than a millimeter,that seems too small??
Where do you get the 0403 LED’s at Lexel?
Green is the sun’s peak wavelength, and most living creatures with eyes are sensitive to green light because that’s the strongest component of natural light. It also tends to be the brightest or most efficient color for emitters and for glow-in-the-dark stuff. Given the same power level for each color, green aux LEDs will generally tend to be the brightest.
However, blue works really well too, and will generally look pretty bright. Most of our high-power LEDs are blue underneath the phosphor layer.
Other colors are generally less bright.
On Emisar’s boards, or just on yours?
Do we know the size of Emisar’s aux LEDs for sure?
Edit: I don’t have good tools for measuring things that small, but I think Emisar might be using 0603-sized LEDs. I’m seeing about 1.7mm x 0.8mm. They appear to be smaller than the clock kit LEDs, which I think are 0805.
It’d be nice if these things all used metric units, instead of inches.
perzackly 1/5th this big
please use THIS application tool…
Thanks for the info!
I finally got the code published…
I also added a UI diagram. It’s sort of an awkward mix of Anduril and RampingIOS V2, but I hope the diagram is readable:
It’s not exactly a bad thing for manufacturers to have people primed to buy the next revision/model/etc.
Not in that context eas, but when they hold off buying til the impending next revision, already sure at announcement that there will be changes, then things get a bit wonky.
My sense is that, at least among likely buyers of Emisar lights, the % of people who will wait for an anticipated update is relatively small compared to the % who will buy one now, and one later.
But that’s really just a guess.
True that!
You can usually reflow a 0603 on a bigger 0402 footprint like I am using
this is what I did on my new Generation 3 tail board a dual footprint, I changed the wideness of 0402 a bit
on the D4 I had to use normal 0402 footprint as its very limited space
I found this info on the WWW.
SMD LEDs are available in four sizes, which are designated 1206, 0805, 0603 and 0402 . 0402 is the smallest, with overall package size of 1.0 mm x 0.5 mm x 0.45 mm (L x W x H). Then 0603 at 1.6 mm x 0.8 mm x 0.6 mm. 0805 are slightly larger, at 2.0 mm x 1.25 mm x 0.8 mm.
I measured the 0805 at 3.21 x 1.5,I measured from flange to flange on the bottom.
Looks like they are all available for reasonable price.
They are available in many more sizes, not only 4…
Note: on the back side there’s an arrow. The arrow points to the negative wire.
there are also 0201 LEDs by now
I ordered one time instead of 0603 inch, 0603(0201) metric resistors
they can be soldered by hand but not easy
