ROHS question - smd resistors with LFP designation ROHS or not?

- S
- SioL
  
  Contact options for registered users
posted
17 years ago

Mon, Sep 25, 2006 10:49 AM

Hi!

I'm sorting out non-rohs components from our storage.

I've been told that Yageo SMD resistors with LFP marking are in fact ROHS, even though there is no green sticker and pb-free is not written on the label.

Is there any truth to this?

In general, is there any way besides PB-free sticker or text to differentiate the components (resistors/capacitors).

I guess a spectrometer would be the only sure way to tell, but it probably costs way more than the cost of just dumping any suspect components.

SioL

- Y
- Yuriy K.
  
  Contact options for registered users
Vote on answer
posted
17 years ago

Mon, Sep 25, 2006 11:55 AM

Truth is out there...

It depends on the particular manufacturer. Check the information on the manufacturer web site.

--
WBR, Yuriy.
"Resistance is futile"

- G
- Genome
  
  Contact options for registered users
Vote on answer
posted
17 years ago

Mon, Sep 25, 2006 11:09 PM

Apparently the London assay office does bits of silver at £0.52 a pop (20,000 a day) and stick it under a spectromotor so they should be able to sort you out for cheaper because they won't be malleting it.

DNA

- P
- Peter
  
  Contact options for registered users
Vote on answer
posted
17 years ago

Wed, Sep 27, 2006 9:46 AM

This is THE problem with many components. A great deal of stuff is lead free and has been for many years, but without the ROHS mark it is treated as suspect and most of it cannot be verified.

I have many thousands of expensive processors in stock which I think are lead free but Hitachi (Renesas) refuse to communicate with anybody but their distributor, and this disti no longer has the franchise... luckily I have the control/monitoring exemption so can just use them up. What a load of complete wankers these people are.

I think your SMD resistors will actually be lead free - these components have been lead free for as long as I remember. Anyway, who cares? Nobody is going to take your product to bits to check. Just use them up.