TE Connectivity AMPSEAL Contacts AMPSEAL crimp contacts from TE Connectivity are for use with the AMPSEAL sealed connector series. These AMPSEAL receptacle contacts have a wire size of 0.5-1.25mm² and an insulation diameter of 1.7 - 2.7mm. Available with tin or gold plating these contacts are suitable for a range of applications with sturdy and reliable connection over time.