X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=j90XQfC63CGqmd/dXBUM7Qasm086VhGpq7+/q/hhP+o=; b=n/sem+8Ktion1zxSK3Pb9z4HUxANIolyFFykFAi/WtH0rdS7V/1bv2luaWVGyX65sE w9qGcTdGZx/q6WeE/stXvB5aeFG2OQJHTqtJWQw6RcsrGv0ZWNm1bsppXVXsRGQJkJqg N74w7WvrtMqm1WhJDFIOmEw1Ao1x131qurroxjazx4A+NhFrZac+B4hpV3atd6MDMBw8 z6Z18kB3+N8DNxoHlWtd9tuTf+SawrYBKVyYCtpifFHWTCTbGnkNZgeGIuGNicDb2LPy BAgTGv8EAkDO/Enun6kB5NsKuUQBl8xSlTAzlKM5cnc3uzPkTfDHDq3DrnE0lRR2i3sl yj7A== X-Received: by 10.194.92.177 with SMTP id cn17mr5393197wjb.18.1397631291693; Tue, 15 Apr 2014 23:54:51 -0700 (PDT) Message-ID: <534E2921.2020800@gmail.com> Date: Wed, 16 Apr 2014 07:54:25 +0100 From: selsinork AT gmail DOT com User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121011 Thunderbird/16.0.1 MIME-Version: 1.0 To: geda-user AT delorie DOT com CC: Richard Bown Subject: Re: [geda-user] printed meter shunts References: <20140415195425 DOT 37808583 AT richard-laptop> <20140415213102 DOT 7714447a AT richard-laptop> <20140415223808 DOT 5df05324 AT richard-laptop> In-Reply-To: <20140415223808.5df05324@richard-laptop> Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Reply-To: geda-user AT delorie DOT com On 15/04/14 22:38, Richard Bown wrote: > Hmmm, you've got me thinking Nathan, 2512 package directly on the pcb > may get warm , but if mounted piggy back on a high value resistor or > cap with the same footprint may well do it, Have you seen ones like this ? http://uk.farnell.com/international-resistive/oarsxpr001flf/resistor-current-sense-0-001ohm/dp/2112985 There's a nice thermal image in the datasheet showing what happens under load.