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Re: [Amps] Noisy relay

To: <amps@contesting.com>
Subject: Re: [Amps] Noisy relay
From: "Paul Christensen" <w9ac@arrl.net>
Date: Mon, 12 Dec 2022 08:11:57 -0500
List-post: <mailto:amps@contesting.com>
The table shown on page 2 of this P&B white paper compares drop-out time from a 
common 12V frame relay relative to coil suppression type.  In this example, a 
Zener with a breakdown voltage of 2X the supply voltage was chosen.  The table 
clearly shows a tradeoff between drop-out time and measured transient voltage 
created by the collapsing coil field.

https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=13C3311_AppNote&DocType=CS&DocLang=EN

Paul, W9AC

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