Feature： 1:Resistant to high temperature. 2:Quick temperature response. 3:Resistance：R200=1KΩ±5% 4:B Value：B100/200=4537K±3% 5:Thermal time constant(in water) ：5 sec 6:Thermal dissipation constant：1.3MW/°C 7:Operating temperature range：-30°C～+300°C