Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w8KH73uX005796 for ; Thu, 20 Sep 2018 19:07:06 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1g32JL-0004sS-N0 for rs_out_1@blacksheep.org; Thu, 20 Sep 2018 18:00:15 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1g32JK-0004sJ-VJ for rsgb_lf_group@blacksheep.org; Thu, 20 Sep 2018 18:00:14 +0100 Received: from smtp-out-3.talktalk.net ([62.24.135.67]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91_59-0488984) (envelope-from ) id 1g32JJ-0005kt-Dd for rsgb_lf_group@blacksheep.org; Thu, 20 Sep 2018 18:00:13 +0100 Received: from malcoHP ([79.69.133.251]) by smtp.talktalk.net with SMTP id 32JHgNhFSbZX532JHgMUI2; Thu, 20 Sep 2018 18:00:11 +0100 X-DKIM-Result: Domain=talktalk.net Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=talktalk.net; s=cmr1711; t=1537462811; bh=nAi4eBMzBMvEACcnoPXa1Xct1iOT2XlN9Tclmu/vdFI=; h=From:To:References:In-Reply-To:Subject:Date; b=Vrd8ijCMsoB3uAzI6hIWTj7mfTZK+XqRoeoiPnSnLxkcKIdYxckynlxu9k6cCEWue gmH0h0KYkg2SD1LppUPs8zEz6bxtLj1DEqqhJ4jKtEi1YAwnEdV/C8OeK1OKXM+VDI JatvsIY/X6C9J/8Jb9N7ZibPPIzKqiNqs3RLF5ls= X-Originating-IP: [79.69.133.251] X-Spam: 0 X-OAuthority: v=2.3 cv=Poq9kTE3 c=1 sm=1 tr=0 a=qnylMyfBFOqhtNdCjFDDBw==:117 a=qnylMyfBFOqhtNdCjFDDBw==:17 a=8nJEP1OIZ-IA:10 a=nN7BH9HXAAAA:8 a=F3M5lZpKAAAA:8 a=lAiCvNETAAAA:8 a=pGLkceISAAAA:8 a=1gbsLkn6HR7xtk8vrRAA:9 a=wPNLvfGTeEIA:10 a=slCku8JSH3TyizEDQ3pD:22 a=qvpwSYz13qjZuk0A6Wuf:22 Message-ID: From: "mal hamilton" To: References: <1402307201.20180918094016@gmail.com> <31f7c601-0496-7a6a-144e-86e7e3eaff0c@n1bug.com> <1405681597.20180918113832@gmail.com> <19864612.20180918121009@gmail.com> <9cfaf19b-3c17-31a4-c253-3d39018c616e@n1bug.com> <84266593.20180918144032@gmail.com> <6a3c36b4-95b8-5ca6-eef8-cdf433f01dcb@n1bug.com> <1683505786.20180918153216@gmail.com> In-Reply-To: Date: Thu, 20 Sep 2018 18:00:11 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3508.1109 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3508.1109 X-CMAE-Envelope: MS4wfJstuvLzHQ1c9YKD1HoZby4FUJXv3T7j3VNk5iUD8ymoV+X+vRqsjXoX0yqlxHAbXOOTF/UJF6YB1/0HVOpB7PljyTM193gJdMhWtRZwivee55rjvgZ4 2s6z/UHSwIqyxO6nhvSp0pH6LqhksXxsSLeiha/AKP3+Dftgpyz+c3DmN6apI1yvD6AGFKXi/AYqOQ== X-Spam-Score: -0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: Almost indestructible Content analysis details: (-0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [62.24.135.67 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 49f0f587e44d6711c57b8a4e950ba850 Subject: Re: LF: Re: And again! Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.1 required=5.0 tests=MISSING_OUTLOOK_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Almost indestructible -----Original Message----- From: g3kevmal@talktalk.net Sent: Thursday, September 20, 2018 4:02 PM To: rsgb_lf_group@blacksheep.org Subject: LF: Re: And again! Consider FET type MRFE6VP61K25H DE MAL/G3KEV -----Original Message----- From: Chris Wilson Sent: Tuesday, September 18, 2018 3:32 PM To: N1BUG Subject: Re: LF: Re: And again! Hello Paul, Yes I use the still available 32N20 devices, but so long as you watch the input capacitance you should be able to substitute quite a few others. I was given a load of these, which are kind of nice and work superbly : https://www.wolfspeed.com/media/downloads/176/C3M0065090D.pdf Tuesday, September 18, 2018, 3:08:35 PM, you wrote: > Interesting. It remains to be seen how many FET deaths will occur > here. Perhaps running them at 36V maximum (summer) will help them > survive less than ideal operating conditions. I was a bit worried > about the 34N20 no longer being available in the large package but > if I am not mistaken you had been able to use 32N20 as a substitute. > Presently I have no spares which is a situation deserving of attention. > Paul -- Best regards, Chris mailto:dead.fets@gmail.com