... C): 1-2 (in still air)· 7. Thermal time constant(s): within 10-25 sec (in air) Parameters:· R@25°c : 1k-100k ... Ω. · R@25°c precision value: ±1%, ±2%, ±3%, ±5 ... %, ±10%. B@25°c/50°c: 3270, 3380, 3470, 3550, ... value:_____K ohm ±________% at _____°c,*6, The B value: (_____°c/____°c) = ______K ± _____%7, ...