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Sender: "piclist-bounces@mit.edu" Date: Thu, 6 Feb 2020 03:42:47 -0800 Subject: Re: [EE] 78L05 (SO8) overshoot on removal of over-current event? Thread-Topic: [EE] 78L05 (SO8) overshoot on removal of over-current event? Thread-Index: AdXc5GVRDuRd0cR2SgaJss+M9dWZRw== Message-ID: References: <20200206042012.200670zz9eqi3oss@webmail.ca.inter.net> 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 209.85.208.45 as permitted sender) receiver=protection.outlook.com; client-ip=209.85.208.45; helo=mail-ed1-f45.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=61GDY7OY6xfZwB039eNZ0ZR1Ed23zoX0l0gcux+NHbY=; b=mkVSmojVUfLLoCzh/JR48OXYdWzYclG8iO2uqhJuWNrWx5F7bahKap5YQ4eVTXN1Gs Mttq0dDtRqOxFLpe3HCXMdMijDDK2z+47Wu98SfPKlCM052UVLy4R3tm54jUFQ2mgrAD T8tauyBalktq4ZmrhWRoZGDoQX6z3EgubiOqBcVVUZ+Dv57kfIAcbfdsZvfheCpQNEna +ajwz9lVjkpVn1N9Soah2Vj33yMF1qW1eFDWEgwAxrZLp6jbmjJERSbLGKbNzNyB8aRh tOQTv4kZQQK9zED29ruHivOA4YYTHfHdYmBp1ShKWox18ENuMW+CFEUiS9ECxz3B19f5 XALA== authentication-results: spf=pass (sender IP is 209.85.208.45) 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;compauth=pass reason=100 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:af82:: with SMTP id mj2mr2721279ejb.84.1580989404535; Thu, 06 Feb 2020 03:43:24 -0800 (PST) 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 > > Another factor of possible relevance - unlikely here but wort noting. Ceramic capacitors subject to a sharp voltage transient may "ring" to several times their applied voltage and this has been known to cause device failures. Magnitude of ringing depends both on the nature of the transient and the composition of the capacitor. Memory says ( and warns me that it may be wrong) that compositions with poor tempco and voltage coefficient may also be worse in this area. (The latter makes some sense). Russell > > --=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 .