Storage Hazards

From: Dwight K. Elvey <>
Date: Fri Oct 8 19:35:51 2004

>From: "Philip Pemberton" <>
>In message <>
> "Dwight K. Elvey" <> wrote:
>> This is really bad stuff. One of the things I've seen with mouse
>> piss is that the legs of many IC's are steel cores with tin plating.
>Steel? Are you sure?
>Most of the manufacturers' datasheets I've seen say something along the lines
>of "Pin material: Copper with [x]um tin-lead plating"...
>> I've seen where the IC leg will look fiine but the entire insides
>> are rotted out from mouse piss.
>Chinchilla urine seems to do the same sort of thing - had a steel cage that
>was rendered unsafe in a year or so by a family of three chinchillas.

Hi Phil
 Check for your self. Use a magnet. If it sticks, it is steel inside,
if not, it is copper. At a previous company I worked at, we always
trimmed the leads of IC's and passives. I would say that about 75%
of the IC leads would stick to a magnet and some 20% of the passive
leads would also stick.
Received on Fri Oct 08 2004 - 19:35:51 BST

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