NXP Semiconductors
KTY81 series
Silicon temperature sensors
3
R
(kΩ)
2
1
150 °C
125 °C
100 °C
75 °C
50 °C
25 °C
0 °C
−25 °C
−50 °C
mgg699
5
R
(kΩ)
4
3
2
1
150 °C
125 °C
100 °C
75 °C
50 °C
25 °C
0 °C
−25 °C
−50 °C
mgg700
0
10−1
1
10
Isen(cont) (mA)
0
10−1
1
10
Isen(cont) (mA)
To keep the temperature error low, an operating current of Isen(cont) = 1 mA is recommended for temperatures above 100 °C
a. KTY81/1 series
b. KTY81/2 series
Fig 1. Sensor resistance as a function of operating current
20
∆R
(Ω)
10
0
mgg704
30
∆R
(Ω)
20
10
0
mgg703
−10
0
1
2
Isen(cont) (mA)
−10
0
Tamb = 25 °C
a. KTY81/1 series
Tamb = 25 °C
b. KTY81/2 series
Fig 2. Deviation of sensor resistance as a function of operating current
1
2
Isen(cont) (mA)
KTY81_SER_5
Product data sheet
Rev. 05 — 25 April 2008
© NXP B.V. 2008. All rights reserved.
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