Received: from PCH.mit.edu (18.7.21.50) by mail.efplus.com (192.168.0.8) with Microsoft SMTP Server (TLS) id 8.3.485.1; Fri, 3 Jul 2020 09:29:39 -0700 Received: from PCH.MIT.EDU (localhost.localdomain [127.0.0.1]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 063GIuhp022172; Fri, 3 Jul 2020 12:19:31 -0400 Received: from outgoing-exchange-1.mit.edu (OUTGOING-EXCHANGE-1.MIT.EDU [18.9.28.15]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 063GItBR022169 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 3 Jul 2020 12:18:55 -0400 Received: from oc11exedge1.exchange.mit.edu (OC11EXEDGE1.EXCHANGE.MIT.EDU [18.9.3.17]) by outgoing-exchange-1.mit.edu (8.14.7/8.12.4) with ESMTP id 063GHsNV008050 for ; Fri, 3 Jul 2020 12:17:56 -0400 Received: from oc11exhyb2.exchange.mit.edu (18.9.1.98) by oc11exedge1.exchange.mit.edu (18.9.3.17) with Microsoft SMTP Server (TLS) id 15.0.1293.2; Fri, 3 Jul 2020 12:18:08 -0400 Received: from oc11exhyb2.exchange.mit.edu (18.9.1.98) by oc11exhyb2.exchange.mit.edu (18.9.1.98) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 3 Jul 2020 12:18:51 -0400 Received: from NAM11-DM6-obe.outbound.protection.outlook.com (104.47.57.173) by oc11exhyb2.exchange.mit.edu (18.9.1.98) with Microsoft SMTP Server (TLS) id 15.0.1395.4 via Frontend Transport; Fri, 3 Jul 2020 12:18:51 -0400 Received: from DM5PR1401CA0013.namprd14.prod.outlook.com (2603:10b6:4:4a::23) by DM6PR01MB3931.prod.exchangelabs.com (2603:10b6:5:88::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3153.20; Fri, 3 Jul 2020 16:18:49 +0000 Received: from DM3NAM03FT044.eop-NAM03.prod.protection.outlook.com (2603:10b6:4:4a:cafe::8f) by DM5PR1401CA0013.outlook.office365.com (2603:10b6:4:4a::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3153.23 via Frontend Transport; Fri, 3 Jul 2020 16:18:49 +0000 Received: from mail-ej1-f43.google.com (209.85.218.43) by DM3NAM03FT044.mail.protection.outlook.com (10.152.82.211) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3153.24 via Frontend Transport; Fri, 3 Jul 2020 16:18:49 +0000 Received: by mail-ej1-f43.google.com with SMTP id l12so34803678ejn.10 for ; Fri, 03 Jul 2020 09:18:49 -0700 (PDT) From: Jason White To: Microcontroller discussion list - Public. Sender: "piclist-bounces@mit.edu" Date: Fri, 3 Jul 2020 09:18:11 -0700 Subject: Re: [EE] Specifying the right electrolytic capacitors for long (10 year) operating life? Thread-Topic: [EE] Specifying the right electrolytic capacitors for long (10 year) operating life? Thread-Index: AdZRVyaFTszg++NxSMGMIaJJJUK5eQ== Message-ID: References: List-Help: List-Subscribe: , List-Unsubscribe: , In-Reply-To: Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: Pass X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: Pass (protection.outlook.com: domain of gmail.com designates 209.85.218.43 as permitted sender) receiver=protection.outlook.com; client-ip=209.85.218.43; helo=mail-ej1-f43.google.com; dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=vm50hdq7Ju/gA8G7VZ/6iEHfSI8kuXzHtzW2K2XDiK0=; b=lagUBEiBYVO96WEs4PmZh9BhHmS5t6unC0b0Kl9TWtEckefvVUa8i9oth7U8SPLtG9 QXurR37Ff2/58u4Tc00UXX8gumsz4fDtcFNH3S5Niu59YkE7gjIL4DTeRnRnCPdSMyjv t0oEQULJoFwd0As5vuuJX+8Ze15Lh7eU0/CXNf0FadQQBY2R61F7WA54jIewn40oMs5F vt40h9eyicrvuowPASfvSMjo5hsV1E9WDbZYLZku1h/vttAZQQ5dXkW+1KShYcCi4RgF PFwIM9hNJZJ6iVvhhcTaCFMRj2sKvjbOr9Z9e3ZvfEyXZEioTDgwoBBHESq6GlcoMsWb TCzQ== authentication-results: spf=pass (sender IP is 209.85.218.43) smtp.mailfrom=gmail.com; mit.edu; dkim=pass (signature was verified) header.d=gmail.com; mit.edu; dmarc=pass action=none header.from=gmail.com; errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-received: by 2002:a17:906:1414:: with SMTP id p20mr32240472ejc.247.1593793128089; Fri, 03 Jul 2020 09:18:48 -0700 (PDT) x-topics: [EE] x-content-filtered-by: Mailman/MimeDel 2.1.6 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Tmin=3D -55C (very cold) Thanks everyone for the RC timer advice. I will use an alternate chemistry. What about the motor capacitor? --=20 Jason White --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .