In an effort to enhance product reliability of Omron_s line of Dip Switches, OMRON will modify the structure and cover of the listed A6E-N models effective as our production beginning July 2017. The newly modified A6E-N Dip Switches will now be semi- sealed to prevent contact failures caused by flux ingress. PCB layout and overall dimensions will remain unchanged. Please carefully read through the Product Change Notification and note the differences. Please contact a Mouser Technical Sales Representative for further information. 5-0117-16