Not the same form factor but aircraft circuit breakers are rated for
high vibration (10g, 50g shock) and fairly lightweight (24g):
https://www.aircraftspruce.com/catalog/elpages/klixon2tc5.php
The main downside is a significant on resistance and the associated
voltage drop. I do worry that an unplanned surge might cause it to pop
during flight. For an amateur rocket, it might be better to take a
chance on a short than lose all power due to a circuit breaker trip.
Back in May 2016, there were some discussions on the list about switches.
-Bob
On 10/14/20 12:57 AM, Fred S wrote:
Andre, Wyatt, Troy and Craig, I appreciate and thank you for the recommendations and several of the suggestions (e.g. fingertech robotics and the rotary switch) will be used in future builds. Currently, the present AV-bay set up in part utilizes a slide switch to turn on/off 2 lipos that power a Byonics 2 watt GPS transmitter and a NMEA logging unit. The current DPDT switch is OK but probably not robust enough for significant vibration, I'd like to replace the current switch with a similar sized one due to space limitations. Any further thoughts would be much appreciated.
Thanks,
Fred
On Wed, Oct 14, 2020 at 12:31 AM Troy Prideaux <troy@xxxxxxxxxxxxxxxxxxxxx <mailto:troy@xxxxxxxxxxxxxxxxxxxxx>> wrote:
There ya go, 1^st I’ve heard of that process. Thanks for pointing
that out.
Cheers,
Troy
*From:*arocket-bounce@xxxxxxxxxxxxx
<mailto:arocket-bounce@xxxxxxxxxxxxx>
[mailto:arocket-bounce@xxxxxxxxxxxxx
<mailto:arocket-bounce@xxxxxxxxxxxxx>] *On Behalf Of *Craig Strudwicke
*Sent:* Wednesday, 14 October 2020 2:38 PM
*To:* arocket@xxxxxxxxxxxxx <mailto:arocket@xxxxxxxxxxxxx>
*Subject:* [AR] Re: question about vibration resistent slide switches
Maybe they are alodined instead of anodised ie still electrically
conductive
https://www.besttechnologyinc.com/surface-finishing/what-is-alodine-chem-film-chromate-conversion-coating/
On Wed, Oct 14, 2020 at 11:09 AM Troy Prideaux
<troy@xxxxxxxxxxxxxxxxxxxxx <mailto:troy@xxxxxxxxxxxxxxxxxxxxx>>
wrote:
Thanks for the link. I was looking very recently for something
just like this (compact high power switch) although I’m not
convinced on the choice of anodised al-alloy screw for the
primary contact load carrier; although I assume they’ve tested it.
Troy
*From:*arocket-bounce@xxxxxxxxxxxxx
<mailto:arocket-bounce@xxxxxxxxxxxxx>
[mailto:arocket-bounce@xxxxxxxxxxxxx
<mailto:arocket-bounce@xxxxxxxxxxxxx>] *On Behalf Of *André
*Sent:* Wednesday, 14 October 2020 8:26 AM
*To:* arocket@xxxxxxxxxxxxx <mailto:arocket@xxxxxxxxxxxxx>
*Subject:* [AR] Re: question about vibration resistent slide
switches
Hi Fred
If you don't absolutely need double pole, I've used switches
like this before:
https://www.fingertechrobotics.com/proddetail.php?prod=ft-mini-switch
They seem like they would be very vibration resistant. You
could also easily make your own that was effectively double
pole, the poles just wouldn't get switched at the same time.
Andre