Philips Semiconductors
Silicon temperature sensors
Product specification
KTY85-1 series
CHARACTERISTICS
Tamb = 25 °C, in liquid, unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
R25
TC
R100/R25
R−40/R25
τ
sensor resistance
KTY85-110
KTY85-120
KTY85-121
KTY85-122
KTY85-150
KTY85-151
KTY85-152
temperature coefficient
resistance ratio
resistance ratio
thermal time constant; note 1
rated temperature range
Icont = 1 mA
Tamb = 100 °C and 25 °C
Tamb = −40 °C and 25 °C
in still air
in still liquid; note 2
in flowing liquid; note 2
MIN. TYP. MAX. UNIT
990
−
1010 Ω
980
−
1020 Ω
980
−
1000 Ω
1000 −
1020 Ω
950
−
1050 Ω
950
−
1000 Ω
1000 −
1050 Ω
−
0.76 −
%/K
1.65 1.67 1.69
0.569 0.577 0.585
−
20
−
s
−
1
−
s
−
0.5
−
s
−40
−
+125 °C
Notes
1. The thermal time constant is the time taken for the sensor to reach 63.2% of the total temperature difference.
For example, if a sensor with a temperature of 25 °C is moved to an environment with an ambient temperature of
100 °C, the time for the sensor to reach a temperature of 72.4 °C is the thermal time constant.
2. Inert liquid, e.g. FC43 manufactured by the 3M company.
1998 Mar 26
3