This part is a kind of semiconductor called 10K3A1I.

Function of this product has Thermistor.

Manufacturers : Measurement

Image and pinout :

Some of the text within the PDF file :

10K3A1I Series II Thermistor  Thermally conductive epoxy coating  Ø 2.4 mm Maximum Diameter  30 AWG Solid Silver Plated Copper Leads with White PTFE Insulation  Choice of 4 temperature tolerance classifications  RoHS Compliant DESCRIPTION The BetaCURVE Chip is Soldered to 30 AWG Solid Silver Plated Copper Leads with White PTFE Insulation. Device is Encapsulated in Stycast Epoxy Resin. FEATURES Interchangeability Proven Stability and Reliability Rapid time response PTFE Insulated lead Wires Thermally Conductive Epoxy Coating Temperature range -40 ºC to +125ºC APPLICATIONS Temperature sensing, control and compensation Tight Tolerance Instrumentation Assembly into probes for a wide variety of applications General Instrumentation applications PERFORMANCE SPECS Parameters [ ... ]

10K3A1I PDF Datasheet Download