This part is a kind of semiconductor called KTY10.

Function of this product has Silicon Spreading Resistance Temperature Sensor in Leaded Plastic Package.

Manufacturers : Siemens Semiconductor Group

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Some of the text within the PDF file :

Silicon Spreading Resistance Temperature Sensor in Leaded Plastic Package Features • Temperature dependent Resistor with Positive Temperature Coefficient • Small plastic package • Fast response • High reliability due to multilayer gold contacts • n-conducting silicon crystal • Polarity independent due to symmetrical construction • Available selected in ± 1% tolerance groups Electrical Characteristics at TA = 25 ˚C unless otherwise specified Parameter Symbol min. Temperature sensor resistance IB = 1 mA R25 KT 100 KTY 10-5 KTY 10-6 KTY 10-62 KT 10-7 Thermal time constant (63% of ∆TA) in still air in still oil (Freon FC40/PP7) τair τoil 1940 1950 1980 1990 2010 – – Limit Values typ. – – – – – 40 4 max. KT 100 KTY 10 Modified TO-92 Unit Ω 2060 1990 2020 [ ... ]

KTY10 PDF Datasheet Download