Hey, trying to identify a type of diode that's in a circuit. Unfortunately my camera isn't the best but I've attached a photo. I think it's a thick yellow band then brown, yellow, gray.

Help with this would be great, thanks!

 

Hello,

The diode would be an 1N4148.

Bertus

 

Hello,

The diode would be an 1N4148.

Bertus

Many thanks! Out of interest is there a chart that I consult for future reference for identifying diodes like this?

 

Out of interest is there a chart that I consult for future reference for identifying diodes like this?

Learn to read the color code. Yellow-brown-yellow-gray = 4148.

I've never seen a diode labeled that way. My 1N4148 have the part number printed on the package.

 

Hello,

I have also seen diodes with the color code white-brown-yellow.
Those are the 1N914.

Bertus

 

The color code dl324 is referring to is the standard color code used for resistors and some other components. Color coding for diodes used to be more common than it is now. With diodes the wide band is the cathode and the first digit.

 

Hello,

Read this:
Diode part number
The part number for small JEDEC "1N"-coded diodes—in the form "1N4148"—is sometimes encoded as three or four rings in the standard color code, omitting the "1N" prefix. The 1N4148 would then be coded as yellow (4), brown (1), yellow (4), grey (8).

From this wiki page:
https://en.wikipedia.org/wiki/Electronic_color_code

Bertus

 

Many thanks guys, appreciated!