What are these?

[billybob]

Ok I know they are resistors, but how do they work? They read 330ohms, but my multimeter reads...
.6ohms for right and left prongs
.3 for center and left
.3 for center right
these are not exact but are close enough.
how can I get the 330ohms it reads?
Thank you,
Ben

 

[billybob]

Well I did some more digging and turns out they are 3.3 ohm..... Why just why would they label it .33k?!

 

[JimB]

Look here for the resistor datasheet:

https://www.farnell.com/datasheets/72873.pdf

you will see that they are 10% tolerance.

Look here:
**broken link removed**
and scroll down to the section "BS1852 Letter Coding for Resistors"
In the table it shows that K represents 10% tolerance.

JimB

 

[billybob]

Look here for the resistor datasheet:

https://www.farnell.com/datasheets/72873.pdf

you will see that they are 10% tolerance.

Look here:
**broken link removed**
and scroll down to the section "BS1852 Letter Coding for Resistors"
In the table it shows that K represents 10% tolerance.

JimB

Thank you sir.

 

[Nigel Goodwin]

Well I did some more digging and turns out they are 3.3 ohm..... Why just why would they label it .33k?!

They aren't and they didn't.

They are clearly labelled 0.33 ohms + 0.33 ohms (two in series), intended for emitter resistors in audio amplifiers.

How did you get from clearly labelled 0.33 to 330?.

 

[rjenkinsgb]

Why just why would they label it .33k

Look again - it does not say 0.33K it says 0.33Ω K

As the saying goes, "The devil is in the details"..

 

[billybob]

They aren't and they didn't.

They are clearly labelled 0.33 ohms + 0.33 ohms (two in series), intended for emitter resistors in audio amplifiers.

How did you get from clearly labelled 0.33 to 330?.

Because as JimB noted I thought it was .33(kilo) ohms kinda like a 4.7k ohm. Didn't realize it was tolerance

 

[KeepItSimpleStupid]

They are dual emitter resistors https://consumer-parts.com/product.sc?productId=30816 , typically under 1 ohm used in audio amplifers. Sometimes hard to come by.

Here https://www.farnell.com/datasheets/72873.pdf is the datsheet for that part. None go over 3.3 ohms.

Take it form people who used to service audio amplifiers.

 

[Nigel Goodwin]

They are dual emitter resistors https://consumer-parts.com/product.sc?productId=30816 , typically under 1 ohm used in audio amplifers. Sometimes hard to come by.

Dead easy - you simply get two separate 0.33 ohm resistors

 

[KeepItSimpleStupid]

The "K" is a tolerance of +-10% See https://en.wikipedia.org/wiki/RKM_code
and the datasheet.

 

[billybob]

The "K" is a tolerance of +-10% See https://en.wikipedia.org/wiki/RKM_code
and the datasheet.

Probably for some amplifier design right? Anyway I found some others that will work. Gotta watch out for that “K“ now!

 

[KeepItSimpleStupid]

Gotta watch out for that “K“ now!

In this case, it's the Ω symbol. I missed it too initially.

 

[audioguru]

J is 5%, K is 10% and M is 20% tolerance.