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[82.70.254.222]) by smtp.gmail.com with ESMTPSA id x65-v6sm3112243wmg.39.2018.09.18.07.32.17 (version=TLS1 cipher=AES128-SHA bits=128/128); Tue, 18 Sep 2018 07:32:18 -0700 (PDT) Date: Tue, 18 Sep 2018 15:32:16 +0100 From: Chris Wilson X-Priority: 3 (Normal) Message-ID: <1683505786.20180918153216@gmail.com> To: N1BUG In-Reply-To: <6a3c36b4-95b8-5ca6-eef8-cdf433f01dcb@n1bug.com> 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> MIME-Version: 1.0 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: 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 : [...] 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 [2a00:1450:4864:20:0:0:0:32c listed in] [list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dead.fets[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: f62c7cf8eeb8e5a327b71719e9bffff1 Subject: Re: LF: Re: And again! Content-Type: text/plain; charset=us-ascii 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=0.8 required=5.0 tests=PRIORITY_NO_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 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