What LEDs are these?

[KamiKatze]

Hey peeps, i have a wifi card which has two green LEDs, but my rig's color scheme is black/red so i want to solder red ones on there, but i struggle finding the right ones. I attached a bunch of pictures of said wifi card's LEDs.

 

If I am not wrong, these ones would be the correct ones? I have no idea about the electrical data of the current ones, so i hope it will be okay?

 

 

I also included a poor photo of two LEDs on my motherboard, one of which i would like to replace. It's a SMD LED but i have no clue what size? I guess 1206 but idk. So I'd appraciate if someone could point me in the right direction.

[Guest]

Just cover up the LEDs with plastidip or something

[KamiKatze]

Just cover up the LEDs with plastidip or something

 

I might do this for the motherboard LEDs but for the Wifi card i would like to keep them and make them red ones. The soldering looks fairly simple because they are through-hole LEDs, so nothing fancy.

[rjshield]

For the WiFi card you may be able to solder the led with its holder.

Once removed take the 3mm LED out of the plastic holder and replace with a red LED. (make sure of correct polarity)

solder the new LED in the original holder onto the board.

 

As for the surface mount LEDs on the motherboard just cover them up. maybe liquid electrical tape, paint or nail varnish. 

[flibberdipper]

To me it just looks like a plain LED in a case, but I do think the ones in the link are the right ones.

[KamiKatze]

To me it just looks like a plain LED in a case, but I do think the ones in the link are the right ones.

 

Yeah. These kinds of LEDs come in that right angled 'case' But there are many variants so i wasn't sure.

[Scheer]

Measure the voltage of the LED on the board now, it may not be 12V.

I second the notion to just remove the LED out of the plastic holder.

[KamiKatze]

Measure the voltage of the LED on the board now, it may not be 12V.

I second the notion to just remove the LED out of the plastic holder.

 

I sadly don't have a voltage meter. Might get one though, because a proper household needs one.

Do you mean the one on the motherboard? The SMD LED? idk if there are even electrical differences. I might actually just plasti dip it, as suggested above, because i don't have the balls to do soldering on my mobo.

 

Putting a new LED in the houseing at the wifi card sounds do-able.

However I tried to get the LED off and take it apart, but they soldered it on there pretty well. It's not your regular tin. My soldering iron can't get it off.

 

Thanks anyways.

[Scheer]

I sadly don't have a voltage meter. Might get one though, because a proper household needs one.

Do you mean the one on the motherboard? The SMD LED? idk if there are even electrical differences. I might actually just plasti dip it, as suggested above, because i don't have the balls to do soldering on my mobo.

 

Putting a new LED in the houseing at the wifi card sounds do-able.

However I tried to get the LED off and take it apart, but they soldered it on there pretty well. It's not your regular tin. My soldering iron can't get it off.

 

Thanks anyways.

 

I mean the wireless card one might not be your typical 5 volt 3mm LED, not sure why I said 12V earlier...

 

It likely is 5V, but IIRC mini PCIe cards are all 1.5 and 3.3 volt and they may not have DC-DC converters on it for 5V so if you replaced it with a 5V LED it wouldn't be very bright/light up at all if it only gets 1.5V.

 

 

Sometimes there is a coating applied to prevent shorts, carefully scratch at the solder with a sharp knife to create a shinny spot and then hit the shinny spot with your iron.

 

As for a cheap multimeter, I bought a few of these to throw all over the place so I always had one on hand and they have held up surprisingly well for the price: http://www.amazon.com/dp/B000EVYGZA

The one quite annoying thing about them is the kickstand doesn't say out very well and it falls over quite a bit... but I love the large display.

[jiyang1018]

Different color LEDs May not use the same voltage. Blue is usually around 3.3v, red is 2-2.2v.you can solder a red one into a blue position, but it may not last long. You need to either put a resistor or a diode in series with red LED in order to make it work with 3.3v.

More detailed information:

http://electronicsclub.info/leds.htm