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Color rings on diode

I saw color rings on the diode, which is yellow, brown , yellow and
grey. I know this is simply a diode. what does the color means. Thanks
 
T

Tilmann Reh

Jan 1, 1970
0
I saw color rings on the diode, which is yellow, brown , yellow and
grey. I know this is simply a diode. what does the color means. Thanks

The same as for resistor color coding: (1N) 4148 in this case.
 
W

Watson A.Name - \Watt Sun, the Dark Remover\

Jan 1, 1970
0
I saw color rings on the diode, which is yellow, brown , yellow and
grey. I know this is simply a diode. what does the color means. Thanks

Makes perfect sense. It's a 1N4148.
 
R

RST Engineering \(jw\)

Jan 1, 1970
0
The more important question is: Were the rings (bands) all on one end
scrunched together or spread out? If spread out, was there a black band
you didn't tell us about?

Jim
 
R

RST Engineering \(jw\)

Jan 1, 1970
0
How do you know which end is the cathode?

Jim
 
R

Remove _ for valid address

Jan 1, 1970
0
The same as for resistor color coding: (1N) 4148 in this case.

How does one know which end to start reading from?

Mike.
 
M

mmm

Jan 1, 1970
0
Remove said:
How does one know which end to start reading from?

usually one band is larger then others and it marks the ... ( anode
cathode ? I never, never remember the name of the N-side of the diode
junction )

this band is the most significant digit in the code

1N4148 is: yellow ( larger band ) black yellow grey

P.S. I am not sure if japanese (1S.... ) diode coding is similar
 
S

Spehro Pefhany

Jan 1, 1970
0
That is true, I believe this is some custome made component. Cause I
couldn't find any colour coding diode in the market.

It used to be popular with European component makers. I bought an ammo
box of 5,000 Philips diodes once which were so marked.


Best regards,
Spehro Pefhany
 
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