Accurate, reliable
temperature measurement
throughout the car
KTY silicon temperature sensors
Combining accuracy, reliability and stability, NXP’s silicon temperature sensors are the ideal
choice for automotive applications from climate control to engine monitoring. An extensive
selection of operating ranges, packages, resistances and tolerances ensures designers can find
the perfect solution to their temperature monitoring needs.
Key features
Ñ
High accuracy and reliability
Ñ
Long-term stability
Ñ
Positive temperature coefficient – fail-safe behavior
Ñ
Virtually linear characteristics
Key applications
Ñ
Oil temperature
Ñ
Oil module
Ñ
Transmission
Ñ
Engine cooling
Ñ
Climate control
Ñ
Overheating protection
Ñ
Heating control systems
From engine management to climate control, systems
throughout today’s vehicles rely on accurate and reliable
temperature measurement to improve safety, performance
and comfort. And that’s precisely what NXP KTY silicon
temperature sensors deliver. Thanks to a number of intrinsic
characteristics, they boast better performance and
operational advantages over traditional passive-based
techniques using thermistors.
KTY sensors display a virtually linear temperature coefficient
over their entire temperature range, ensuring highly accurate
measurements. A linearization resistor can be easily added
where further linearization is required. As the temperature
coefficient is positive, the sensors exhibit fail-safe operation
when a system overheats. Furthermore silicon is inherently
stable, so KTY sensors are extremely reliable and have very
long operational lifetimes.
2500
KTYB1
R (kΩ)
2000
1500
1000
Linearized
with Rp=2870Ω
500
0
-100
-50
0
25 50
100
150
200
Temperature T (ºC)
RT curve of KTY81, linearized with parallel resistor
An unbeatable range
NXP has one of widest ranges of silicon temperature sensors on the market, with families specified according to package,
nominal resistance, tolerance and operating range. The KTY81 and KTY82 families use a twin-sensor technology for
polarity-independent sensing. Delivered in a hermetically sealed glass package, the KTY83 and KTY84 series are designed for
use in fluids such as oil or water. The KTY84 range offers operating temperatures up to 300 ºC so is ideal for use in exhaust and
heating systems.
Product overview
Family type
KTY81-1
KTY81-2
KTY82-1
KTY82-2
KTY83-1
KTY84-1
Package
SOD70
SOD70
SOT23
SOT23
SOD68
SOD68
R
25
(Ohm)
1000
2000
1000
2000
1000
1000 (R
100
)
Available tolerances
+/- 5% down to +/-1%
+/- 5% down to +/-1%
+/- 5% down to +/-1%
+/- 5% down to +/-1%
+/- 5% down to +/-1%
+/- 5% down to +/- 3%
T
oper
Range
(°C)
-55 to 150
-55 to 150
-55 to 150
-55 to 150
-55 to 175
-40 to 300
Customized tolerances / selections are available on request
KTY sensors are supplied in a choice of leaded (glass or plastic) and
SMD (plastic) packages.
www.nxp.com
© 2007 NXP B.V.
All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and
reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use.
Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.
Date of release: August 2007
Document order number: 9397 750 16148
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