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Forum Index : Microcontroller and PC projects : IC tube packing

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zeitfest
Guru

Joined: 31/07/2019
Location: Australia
Posts: 581
Posted: 03:09am 23 Mar 2024
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Buying ics -  some years ago some arrived in tubes with an antistatic packing strip keeping the ic's from rattling around, a fairly robust and conductive black foam strip approx 6 mm wide and maybe2  mlllimeter or so thick, looks like a carbon black/polymer/rubber material. I think they have been replaced with conductive tube material now.

As it happens those strips were very useful !!! Anyone know suppliers ?
 
vegipete

Guru

Joined: 29/01/2013
Location: Canada
Posts: 1132
Posted: 04:13am 23 Mar 2024
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Look for "Desco 12250" ESD protective foam.
Visit Vegipete's *Mite Library for cool programs.
 
oh3gdo
Regular Member

Joined: 18/11/2021
Location: Finland
Posts: 47
Posted: 05:50am 23 Mar 2024
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I do not where you can buy these strips, but I do why they were used.
I was working in Nokia Capacitor Factory in Tampere Finland at years 1974 to 1985.
At two first years the ICs were very fragile, they went broke quite easily, if you have not grounded.
Every package of ICs were filled the strips.

But about year 1986 every IC start to to last.
I do not to use grounding wires when I was touching the circuits.
The manufacturers has found the similar problem and found a solution to it.
They have added a zener diode to power supply and it was a good solution.
 
 
Geoffg

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Joined: 06/06/2011
Location: Australia
Posts: 3292
Posted: 07:51am 23 Mar 2024
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  vegipete said  Look for "Desco 12250" ESD protective foam.

Wow!!!  AU$172.50 for one sheet.

Geoff
Geoff Graham - http://geoffg.net
 
zeitfest
Guru

Joined: 31/07/2019
Location: Australia
Posts: 581
Posted: 12:23pm 24 Mar 2024
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Yes thats a bit expensive !!
I was after the tape/strip format instead of sheet, I suspect it is all overpriced  though.
 
PhenixRising
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Joined: 07/11/2023
Location: United Kingdom
Posts: 1383
Posted: 09:05am 25 Mar 2024
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Is this the same thing?
 
JohnS
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Joined: 18/11/2011
Location: United Kingdom
Posts: 4044
Posted: 12:33pm 25 Mar 2024
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If it is, the price is much better!

John
 
zeitfest
Guru

Joined: 31/07/2019
Location: Australia
Posts: 581
Posted: 12:48am 27 Mar 2024
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Yes it looks like the substance is the same thing, but in bulk ..maybe it can be sliced into strips
 
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