KTY83_SER_6 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 06 — 4 April 2008 3 of 10
NXP Semiconductors
KTY83 series
Silicon temperature sensors
6. Characteristics
[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.
Table 6. Characteristics
T
amb
=25
°
C; in liquid; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
R
25
sensor resistance I
sen(cont)
=1mA
KTY83/110 990 - 1010 Ω
KTY83/120 980 - 1020 Ω
KTY83/121 980 - 1000 Ω
KTY83/122 1000 - 1020 Ω
KTY83/150 950 - 1050 Ω
KTY83/151 950 - 1000 Ω
TC temperature coefficient - 0.76 - %/K
R
100
/R
25
resistance ratio T
amb
= 100 °C and 25 °C 1.65 1.67 1.69
R
−55
/R
25
resistance ratio T
amb
= −55 °C and 25 °C 0.49 0.50 0.51
∆R
25
drift of sensor resistance at
25 °C
10000 h continuous
operation; T
amb
= 175 °C
-1-Ω
τ
th
thermal time constant in still air
[1]
-20-s
in still liquid
[1]
-1-s
in flowing liquid
[1]
- 0.5 - s
