Just looking to buy a crystal for a real time clock and I came across these, one is listed as "Crystal, Watch, A" and the other is "Crystal, Watch, B"
http://cpc.farnell.com/ael-crystals/x32k768l104/crystal-watch-a-32-768khz/dp/SC08198
http://cpc.farnell.com/ael-crystals/x32k768l009/crystal-watch-b-32-768khz/dp/SC08199
Apart from one costing more, what is the difference, the specs seem to be the same.
http://cpc.farnell.com/ael-crystals/x32k768l104/crystal-watch-a-32-768khz/dp/SC08198
http://cpc.farnell.com/ael-crystals/x32k768l009/crystal-watch-b-32-768khz/dp/SC08199
Apart from one costing more, what is the difference, the specs seem to be the same.