X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient: geda-user AT delorie DOT com
X-Injected-Via-Gmane: http://gmane.org/
To: geda-user AT delorie DOT com
From: Kai-Martin Knaak <knaak AT iqo DOT uni-hannover DOT de>
Subject: Re: [geda-user] 5630 LED footprint
Date: Fri, 18 Sep 2015 23:37:39 +0200
Organization: Institut =?ISO-8859-1?Q?f=FCr?= Quantenoptik
Lines: 34
Message-ID: <mti074$bef$1@ger.gmane.org>
References: <20150910201416 DOT GG16766 AT fi DOT muni DOT cz> <mtd92r$k0i$1 AT ger DOT gmane DOT org> <20150918121209 DOT GG9273 AT fi DOT muni DOT cz>
Mime-Version: 1.0
Content-Type: text/plain; charset="ISO-8859-1"
X-Complaints-To: usenet AT ger DOT gmane DOT org
X-Gmane-NNTP-Posting-Host: 130.75.102.197
User-Agent: KNode/4.14.1
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id t8ILbtgj005177
Reply-To: geda-user AT delorie DOT com

Jan Kasprzak wrote:

> I am thinking about modifying it to use one big pad for cathode and one
> for anode (instead of two smaller on each side). According to the
> datasheet, the pad near cathode is unconnected, so it can safely be
> joined to the cathode pad, and for the anode, both pads are
> interconnected inside the LED. What do you think about it?
> 
If the diode is soldered in a reflow oven, the small pads are actually 
beneficial. They increase the force of surface tension to pull a slightly 
misaligned component to the center. For manual soldering this does not 
apply. Maybe, I will follow your suggestion.

---<)kaimartin(>---

PS: Note, that the pin  numbers in my footprints are "anode" and "cathode" 
to make extra sure, nets are not messed up. If your symbols use "1" and 
"2" the footprint should reflect this enumeration.
-- 
Kai-Martin Knaak                                  tel: +49-511-762-2895
Universität Hannover, Inst. für Quantenoptik      fax: +49-511-762-2211	
Welfengarten 1, 30167 Hannover           http://www.iqo.uni-hannover.de
GPG key:    http://pgp.mit.edu:11371/pks/lookup?search=Knaak+kmk&op=get