KTY84 series PTC Silicon temperature sensors Characteristics Tamb = 100 °C; in liquid; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit R100 sensor resistance Isen(cont) = 2 mA KTY84/130 970 - 1030 W KTY84/150 950 - 1050 W KTY84/151 950 - 1000 W TC temperature coefficient - 0.61 - %/K R250/R100 resistance ratio Tamb = 250 °C and 100 °C 2.111 2.166 2.221 R25/R100 resistance ratio Tamb = 25 °C and 100 °C 0.595 0.603 0.611 The thermal time constant in still air [1]- 20 - s In still liquid [1]- 1 - s In flowing liquid [1] - 0.5 - s | 
