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NNTP-Posting-Date: Mon, 13 Jan 2003 03:40:23 -0600
From: Barry Lennox
Subject: Re: SMD Cap Test Fixture
Date: Mon, 13 Jan 2003 22:42:18 +1300
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On Mon, 13 Jan 2003 01:22:47 -0500, Mike Monett
>Does anyone know of a good method to hold SMD chip caps in place for
>testing? They have a variety of shapes and dimensions, and I don't know
>of a simple way to make a test fixture that will work.
Seems a good circuit, I'll try one as well.
I saw a cute SMD adaptor for an LCR bridge a while back. He used 2 one
cent bits, one soldered down to a PCB pad connected to one bridge
terminal, and the other was epoxied to an Delrin (TM for acetal resin)
"finger" about 3/16 inch wide and about 3 inches long, the plastic was
probably 125 thou stock. The plastic was bolted down at the far end
from the coin, and set so that the gap between the coins when relaxed
was just a few thou. A short piece of silver braid (from RG-174?) was
soldered from the moving coin to the other bridge terminal. The moving
coin was just sprung aside with your fingernail and the SMD DUT
slipped into the gap. Seemed to work pretty well.
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