Atc semitec glass encapsulated miniature thermistors atc semitec 103nt 4 r025h41g a hermetically sealed 10k 3 thermistor from atc semitec that provides excellent long term stability the glass coating ensures a fast response moisture proofing and use up to 300degc atc semitec 103nt 4 r025h41g 10k 3 nt thermistor