X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient: geda-user AT delorie DOT com
X-Ironport-SBRS: None
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: A2ExBQApgq5V/52AA4BcgxOqZQYFAYEElnmCXgKBPDwQAQEBAQEBAQOBB4QjAQEBAwF+CwsYCRMSDwWJAggFzAkBAQEBAQUBAQEBAQEchh6FLoQ3VhaDAYEUBY0phyqCNolzjmyKIyaEHB6CfAEBAQ
X-IronPort-AV: E=Sophos;i="5.15,517,1432623600"; 
   d="scan'208";a="94198886"
Date: Tue, 21 Jul 2015 10:34:21 -0700
From: Larry Doolittle <ldoolitt AT recycle DOT lbl DOT gov>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] [OT] I need help with selecting components
Message-ID: <20150721173421.GA20472@recycle.lbl.gov>
References: <1507211704 DOT AA02900 AT ivan DOT Harhan DOT ORG>
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="a8Wt8u1KmwUX3Y2C"
Content-Disposition: inline
In-Reply-To: <1507211704.AA02900@ivan.Harhan.ORG>
User-Agent: Mutt/1.5.21 (2010-09-15)
Reply-To: geda-user AT delorie DOT com
Errors-To: nobody AT delorie DOT com
X-Mailing-List: geda-user AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com
Precedence: bulk


--a8Wt8u1KmwUX3Y2C
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

SF -

On Tue, Jul 21, 2015 at 05:04:29PM +0000, Spacefalcon the Outlaw wrote:
> 1. A pushbutton switch for power-on and reset buttons.

Like DJ, I like the parts that Digi-Key categorizes as Tactile Switches
(6069 items).

>    And if someone here has
>    used such a pushbutton switch in his/her boards and already has a
>    vetted PCB footprint for it, that would be ever more awesome. :)

E-Switch TL1105AF100Q, over 12000 on the shelf at Digi-Key,
PCB footprint attached.

> 2. A simple LED that shines upward from the board.  Again, I'm looking
>    for the kind of LED one would expect to see on a random chip
>    vendor's eval board that is meant to be used bare on a lab bench,
>    without fitting to any enclosure or chassis.  Ditto regarding a PCB
>    footprint to go with it.

Just use standard 1206, 0805, or even 0603 footprints.
Here's one simple on-the-shelf 1206 part: Lumex SML-LX1206GC-TR.
I've started moving to smaller sizes.

> 3. What would be a "good" or "reasonable" connector to use for
>    connecting a lab bench power supply?

Somehow I got in the habit of using MTA-156 connectors for this.
It does require you to have and use a crimping tool for the cable
end, but it's simple, cheap, "transparent", maintainable, robust, ...
Lots of options in pin count.  Friction lock is good.

TE 644752-2 (tin) $0.25 in 1's
TE 641119-2 (gold) $0.97 in 1's

  - Larry

--a8Wt8u1KmwUX3Y2C
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=switch_6mm

Element[0x00000000 "" "" "" 1000 1000 0 -7937 0 100 0x00000000]
(
	Pin[ -12795 -8859 7000 1200 7600 4000 "1" "1" 0x00000100]
	Pin[ -12795 8858 7000 1200 7600 4000 "2" "2" 0x00000000]
	Pin[ 12795 8858 7000 1200 7600 4000 "3" "3" 0x00000000]
	Pin[ 12795 -8859 7000 1200 7600 4000 "4" "4" 0x00000000]
	ElementLine [21654 17717 -21654 17717 1000]
	ElementLine [-21654 17717 -21654 -17717 1000]
	ElementLine [-21654 -17717 21654 -17717 1000]
	ElementLine [21654 -17717 21654 17717 1000]
	ElementLine [-21654 -17717 -3937 -17717 1000]
	ElementLine [-3937 -17717 -3937 0 1000]
	ElementLine [-3937 0 -21654 0 1000]
	ElementLine [-21654 0 -21654 -17717 1000]
)

--a8Wt8u1KmwUX3Y2C--