I went Miami in Dec a few years back. It was in low 50s and folks wearing sweaters and coats. I was in short sleeve shirt and asked if I was cold? Really?
Jaime Solorza On May 19, 2015 6:46 AM, "Paul McCall" <[email protected]> wrote: > There are times here when it gets really cold, around 35degrees > Fahrenheit. J > > > > *From:* Af [mailto:[email protected]] *On Behalf Of *Forrest Christian > (List Account) > *Sent:* Monday, May 18, 2015 10:09 PM > *To:* af > *Subject:* [AFMUG] Enclosure low temperature > > > > What is the lowest temperature that each of you would normally expect to > see in your enclosures? > > The reason I'm asking is that I'm in the process of developing up a few > new products. > > To date, all of the packetflux products are designed with components rated > -40 to +85C (I.E way cold to way hot). I'd like to retain this rating, > but I'm running into a minor snag: > > For storage, I'm planning on integrating a SD card (probably microSD) in a > socket. I only need a GB or so, and SD card memory is inexpensive at that > range. > > Unfortunately, all the reasonably priced SD cards are only rated down to > about -25C or -13F. which are about ~$3 in qty. "Industrial temperature > range" ones which are good down to -40C/F are available but they add at > least $30 to the cost for non-name brand, and even more for known brands. > When you're talking about a $100 end-user price, a $30 1GB SD card seems > excessive - and probably isn't even possible if I want to meet the $100 > price with some margin. > > So, I'm currently playing the 'what options do I have' game. I hate to > ship a product only rated down to -25C/-13F, but I know for at least a > large chunk of my customer base they never see below this temperature, > especially when you add a watt of power dissipation in the case with the > device. Which leads me back to my original question: What's the lowest > temperature most people would expect to see inside their enclosures. > > > -- > > *Forrest Christian* *CEO, PacketFlux Technologies, Inc.* > > Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602 > > [email protected] | http://www.packetflux.com > > <http://www.linkedin.com/in/fwchristian> <http://facebook.com/packetflux> > <http://twitter.com/@packetflux> > >
