-----Original Message----- >From: Denny Esterline >Sent: Feb 22, 2012 4:23 PM >To: "Microcontroller discussion list - Public." >Subject: Re: [EE] Normally closed reed switch > >On Wed, Feb 22, 2012 at 1:37 PM, Charles Craft wr= ote: > >> >> http://www.ebay.com/itm/5-SMD-NC-Security-Window-Magnetic-Contact-Reed-S= witches-free-shipping-/160744436147 >> >> I'm looking for an inexpensive (preferably magnetic) switch to turn on a >> cabinet light when the door is opened. >> Initially the LED lamp will be battery powered so need a basic mechanica= l >> switch that doesn't draw >> power when the door is closed. >> >> The security switch on eBay looks like what I want but is there a better >> way to do it? >> I've looked at mechanical (plunger or micro-switch) and they are all mor= e >> expensive. >> >> thanks >> chuckc >> >> >Normally closed reed switches are readily available and (subject to >shipping cost...) considerably cheaper than what you linked. >A brief search on Digikey shows >59140-040-ND >about >4,000 in stock, less than $5 each in singles. Mounts similar to the one yo= u >linked, other mounting options were available as well. > >-Denny Thanks! At least I'm on the right track. The eBay listing was for a five pack so about $2.16 each delivered. I could drive to Thief River Falls in a couple hours but hard for them to b= eat Hong Kong on price. thanks chuckc >--=20 >http://www.piclist.com PIC/SX FAQ & list archive >View/change your membership options at >http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .