Return-Path: Received: from rly-mh05.mx.aol.com (rly-mh05.mail.aol.com [172.21.166.141]) by air-mh08.mail.aol.com (v121_r5.5) with ESMTP id MAILINMH082-bd7497a0ca679; Fri, 23 Jan 2009 13:30:15 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-mh05.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINMH057-bd7497a0ca679; Fri, 23 Jan 2009 13:29:59 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LQQmO-0005Ly-0B for rs_out_1@blacksheep.org; Fri, 23 Jan 2009 18:29:20 +0000 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LQQmN-0005Lp-GR for rsgb_lf_group@blacksheep.org; Fri, 23 Jan 2009 18:29:19 +0000 Received: from mail-fx0-f13.google.com ([209.85.220.13]) by relay2.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LQQmM-0007zd-C2 for rsgb_lf_group@blacksheep.org; Fri, 23 Jan 2009 18:29:19 +0000 Received: by fxm6 with SMTP id 6so1162303fxm.4 for ; Fri, 23 Jan 2009 10:29:11 -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=7bBNXUmLr8xgmV4tZHbKuMoJeh+ScrDPYVu9rj3Unok=; b=skp+y649TlwxFVybKUBkCjiM14RTgHr7cdky94hevqN13wnwYGvDugH9vS6JzIZAKg efOslNWpds/YWWHHg3TdqWKD82eiTQEczxLNkI5WoIzf93wHIbZWWeZMjKRJYxg3Ilcd f7vv6mJqWxMoXEo4MMrcsfEVGVmPKpHmU2Bnw= 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=USkgC6wzwv1oM6ucbeZl8a3l2LG6CyETn1QKYLcefzLgXtw5lsce+qmJ4F/g4wO+Wi BpLAkTiJ6NpQJC3mTfUhLxJeVOnNGKFMYbDO4yTBXBA1g0/txD9W9BJE1MK28zNGvmYm 9oGunYUOTx5MssBI/vijN+viUYTm4krz54sDM= MIME-Version: 1.0 Received: by 10.181.226.19 with SMTP id d19mr3797218bkr.38.1232735351461; Fri, 23 Jan 2009 10:29:11 -0800 (PST) In-Reply-To: <006501c97d7b$3b80b570$0301a8c0@mal769a60aa920> References: <002e01c97d73$3576f7f0$0301a8c0@mal769a60aa920> <006501c97d7b$3b80b570$0301a8c0@mal769a60aa920> Date: Fri, 23 Jan 2009 18:29:11 +0000 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org 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-m271.2 ; domain : googlemail.com DKIM : pass X-Mailer: Unknown (No Version) 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 >