Return-Path: Received: from rly-dc03.mx.aol.com (rly-dc03.mail.aol.com [172.19.136.32]) by air-dc05.mail.aol.com (v121_r4.4) with ESMTP id MAILINDC053-b11497a3067178; Fri, 23 Jan 2009 16:02:55 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dc03.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINDC035-b11497a3067178; Fri, 23 Jan 2009 16:02:34 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LQTA8-0007qV-3Q for rs_out_1@blacksheep.org; Fri, 23 Jan 2009 21:02:00 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LQTA7-0007qM-M8 for rsgb_lf_group@blacksheep.org; Fri, 23 Jan 2009 21:01:59 +0000 Received: from fk-out-0910.google.com ([209.85.128.188]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LQTA6-00030h-OV for rsgb_lf_group@blacksheep.org; Fri, 23 Jan 2009 21:01:59 +0000 Received: by fk-out-0910.google.com with SMTP id e30so1501292fke.4 for ; Fri, 23 Jan 2009 13:01:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=hdqvme8/aHEIrRn9AEjuM6jsZskwNN4Pwn+qvZxV2RM=; b=HwvqbCeZ6kEm6tMqK/tiqKoYOj0M/0uAOTD9JIMz9knXPjOC3vgizIEXa5nxc4tFom H81v9mLZY2nHiVh7kwX2Wurjx1VPUUqwAtdo1KlFgaPVDRkGcEc6CWd7xZ0IBuaSla3/ K29uFpE278qYixj15MbukrxNSZ8N0QqEri9nM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=Ttm7VlOEw8RgGJx0uirFUoOkWmAfHeNcyzjQglu+aYzEieZVjptXQGkpJx05mofTTw FW8dhO9OfFgsGFNBTX011SfHuPgXtd6nG7Om209bdlMAx44L53R2M8YSkOVKMV7wM+XL krkZGMFdmTNNmii0sGmh3o5KzqDGmaaAce9QA= MIME-Version: 1.0 Received: by 10.181.149.7 with SMTP id b7mr3833815bko.210.1232744516251; Fri, 23 Jan 2009 13:01:56 -0800 (PST) In-Reply-To: <00e501c97d9d$0d918d70$0301a8c0@mal769a60aa920> References: <002e01c97d73$3576f7f0$0301a8c0@mal769a60aa920> <006501c97d7b$3b80b570$0301a8c0@mal769a60aa920> <00e501c97d9d$0d918d70$0301a8c0@mal769a60aa920> Date: Fri, 23 Jan 2009 21:01:56 +0000 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org X-Karma: unknown: DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Re: rectifiers Content-Type: text/plain; charset=ISO-8859-1 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=0.0 required=5.0 tests=none 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 X-AOL-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m210.1 ; domain : googlemail.com DKIM : pass X-Mailer: Unknown (No Version) No, but I don't see any reason why they won't work at 50Hz just as well as normal ones. In fact better, due to the lower Vf. Andy G4JNT www.g4jnt.com 2009/1/23 mal hamilton : > Andy > Have you used these diodes in a linear psu > mal/g3kev > > ----- Original Message ----- From: "Andy Talbot" > To: > Sent: Friday, January 23, 2009 6:29 PM > Subject: Re: LF: Re: rectifiers > > >> Quite likely Schottky diodes. Much lower forward voltage drop - >> typical 0.15 to 0.3V at rated current, and OK for fasr SMPSUs. >> Reverse leakage can be very high. >> >> >> Andy G4JNT >> www.g4jnt.com >> >> >> >> 2009/1/23 mal hamilton : >>> >>> MF/LF >>> For interest, nearly every diode that I have tested varies one from >>> another >>> even a matched batch. I suppose normally constructers just grab the >>> required >>> number for a project and start soldering. Perhaps its not that important >>> as >>> long as they are conducting in one direction and offer some resistance in >>> the reverse direction. >>> mal/g3kev >>> >>> >>> ----- Original Message ----- >>> From: mal hamilton >>> To: rsgb >>> Sent: Friday, January 23, 2009 3:56 PM >>> Subject: LF: rectifiers >>> I have found some rectifiers MBR 6045 and although these would do the >>> job, I >>> notice the FORWARD/REVERSE resistance is a lot lower than normal silicon >>> high curent rectifiers. >>> de mal/g3kev >>> >>> >>> >>> >>> ________________________________ >>> >>> No virus found in this incoming message. >>> Checked by AVG - http://www.avg.com >>> Version: 8.0.176 / Virus Database: 270.10.12/1910 - Release Date: >>> 1/22/2009 >>> 6:28 PM >>> >> > > > -------------------------------------------------------------------------------- > > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.176 / Virus Database: 270.10.12/1910 - Release Date: 1/22/2009 > 6:28 PM > > >