Considering a fusiblealloy as a solution really starts withthe applications temperature profile. When cooking a turkey (pop-up timer)or supressing a fire (sprinkler systems), its all about the heat and what thefusible alloy does in response to it. Reliability is achieved through ensuring that each alloy is homogenious andnot subjected to segregation. Take a look at ourlist of alloys, and you'll find that there are manyoptions to choose from, many of which are Bismuth containing.These can be manufactured in many shapes and sizes and due to the high volume nature of these applications, the need for tape and reel is almost a given.