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>
