Document
KTY82 series
Silicon temperature sensors
Rev. 04 — 14 January 2008
Product data sheet
1. Product profile
1.1 General description
The temperature sensors in the KTY82 series have a positive temperature coefficient of resistance and are suitable for use in measurement and control systems. The sensors are encapsulated in the small plastic Surface Mounted Device (SMD) SOT23 package.
Other special selections are available on request.
1.2 Features
I High accuracy and reliability I Positive temperature coefficient;
fail-safe behavior
I Long-term stability I Virtually linear characteristics
1.3 Quick reference data
Table 1. Quick reference data Tamb = 25 °C; in liquid; unless otherwise specified.
Symbol Parameter
Conditions
R25
sensor resistance
Isen(cont) = 1 mA KTY82/110
KTY82/120
KTY82/121
KTY82/122
KTY82/150
KTY82/151
KTY82/210
KTY82/220
KTY82/221
KTY82/222
KTY82/250
KTY82/251
KTY82/252
Min Typ Max Unit
990 980 980 1000 950 950 1980 1960 1960 2000 1900 1900 2000 -
1010 Ω 1020 Ω 1000 Ω 1020 Ω 1050 Ω 1000 Ω 2020 Ω 2040 Ω 2000 Ω 2040 Ω 2100 Ω 2000 Ω 2100 Ω
NXP Semiconductors
KTY82 series
Silicon temperature sensors
2. Pinning information
Table 2. Pin 1 2 3
Pinning Description electrical contact electrical contact substrate (must remain potential free)
Simplified outline
3
1
2
3. Ordering information
Table 3. Ordering information
Type number Package
Name
Description
KTY82/110
-
plastic surface-mounted package; 3 leads
KTY82/120
KTY82/121
KTY82/122
KTY82/150
KTY82/151
KTY82/210
KTY82/220
KTY82/221
KTY82/222
KTY82/250
KTY82/251
KTY82/252
Version SOT23
KTY82_SER_4
Product data sheet
Rev. 04 — 14 January 2008
© NXP B.V. 2008. All rights reserved.
2 of 17
NXP Semiconductors
KTY82 series
Silicon temperature sensors
4. Marking
Table 4. Marking codes Type number KTY82/110 KTY82/120 KTY82/121 KTY82/122 KTY82/150 KTY82/151 KTY82/210 KTY82/220 KTY82/221 KTY82/222 KTY82/250 KTY82/251 KTY82/252
Marking code 110 120 121 122 150 151 210 220 221 222 250 251 252
5. Limiting values
Table 5. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter
Conditions
Isen(cont) continuous sensor current
in free air; Tamb = 25 °C in free air; Tamb = 150 °C
Tamb
ambient temperature
Min Max Unit
- 10 mA
-2
mA
−55 +150 °C
KTY82_SER_4
Product data sheet
Rev. 04 — 14 January 2008
© NXP B.V. 2008. All rights reserved.
3 of 17
NXP Semiconductors
KTY82 series
Silicon temperature sensors
6. Characteristics
Table 6. Characteristics Tamb = 25 °C; in liquid; unless otherwise specified.
Symbol Parameter
Conditions
Min
Typ
Max
Unit
R25
sensor resistance
Isen(cont) = 1 mA KTY82/110
990
-
1 010
Ω
KTY82/120
980
-
1 020
Ω
KTY82/121
980
-
1 000
Ω
KTY82/122
1 000
-
1 020
Ω
KTY82/150
950
-
1 050
Ω
KTY82/151
950
-
1 000
Ω
KTY82/210
1 980
-
2 020
Ω
KTY82/220
1 960
-
2 040
Ω
KTY82/221
1 960
-
2 000
Ω
KTY82/222
2 000
-
2 040
Ω
KTY82/250
1 900
-
2 100
Ω
KTY82/251
1 900
-
2 000
Ω
KTY82/252
2 000
-
2 100
Ω
TC
temperature coefficient
-
0.79
-
%/K
R100/R25 R−55/R25 ∆R25
resistance ratio
resistance ratio
drift of sensor resistance at 25 °C
Tamb = 100 °C and 25 °C Tamb = −55 °C and 25 °C 10000 h continuous operation; Tamb = 150 °C
KTY82/1 series
1.676 0.480
1.696 0.490
1.716 0.500
-
1.6
-
Ω
KTY82/2 series
-
3.2
-
Ω
τth
thermal time constant
in still air
in still liquid
[1] -
7
-
s
[1] -
1
-
s
in flowing liquid
[1] -
0.5
-
s
[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.
KTY82_SER_4
Product data sheet
Rev. 04 — 14 January 2008
© NXP B.V. 2008. All rights reserved.
4 of 17
NXP Semiconductors
KTY82 series
Silicon temperature sensors
Table 7. Ambient temperature, corresponding resistance, temperature coefficient and maximum expected temperature error for KTY82/110 and KTY82/120
Isen(cont) = 1 mA.
Ambient temperature
(°C) (°F)
Temperature KTY82/110
coefficient
(%/K)
Resistance (Ω)
Min
Typ
Max
KTY82/120
Temperature Resistance (Ω)
error (K)
Min
Typ
Max
Temperature error (K)
−55 −67 0.99
475
490
505
±3.02
470
490
510
±4.02
−50 −58 0.98
500
515
530
±2.92
495
515
535
±3.94
−40 −40 0.96
552
567
582
±2.74
547
567
588
±3.78
−30 −22 0.93
609
624
638
±2.55
603
624
645
±3.62
−20 −4
0.91
669
684
698
±2.35
662
684
705
±3.45
−10 14
0.88
733
747
761
±2.14
726
747
769
±3.27
0
32
0.85
802
815
828
±1.91
793
815
836
±3.08
10
50
0.83
874
886
898
±1.67
865
886.