PTC-2000

Alternative to KTY81/210, KTY81/220, KTY81/221, KTY81/222, KTY81/250, KTY82/210, KTY82/220, KTY82/221, KTY82/222, KTY82/250, KTY82/251, KTY82/252
-55°C … +150°C
R25: 2000Ω ±1% … ±5%
DO-35 glass housing
axial wire connections
VPE: 500 in bag
VPE: 5.000 T&R
Fabrication on demand

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FAQ: Is the PTC series also available in SMD design (SOT23)?
The PTC series is not available in SOT23 design and is not being developed.
As an SMD alternative to the KTY82, we offer our CRFC series, which has a different characteristic, but is significantly better in terms of temperature range, long-term stability, accuracy and response time. In addition, the CRFC series is cost-optimized.


The Alpha Therm PTC-2000 series is an outstanding alternative to NXP’s KTY series silicon temperature sensors. It provides a reliable solution for precise temperature measurement and control in a wide range of applications. With different models, nominal resistances and tolerances, these sensors are ideal for industrial use.
Common applications include drives, motors, spindles, inverters, control systems, instruments, equipment, compressors and process control.

The Alpha Therm PTC series includes models with various nominal resistances and tolerances, including:

  • Alpha Therm PTC-600with 1025 Ohm nominal resistance at 100°C and tolerances of 3% and 5%.
  • Alpha Therm PTC-1000 with 1000 Ohm nominal resistance at 25°C and tolerances of 1%, 2%, 3% and 5%.
  • Alpha Therm PTC-2000 with 2000 Ohm nominal resistance at 25°C and tolerances of 1%, 2%, 3% and 5%.

These sensors are compatible with the following KTY series models:

  • KTY81/110, KTY81/120, KTY81/121, KTY81/122, KTY81/150, KTY81/210, KTY81/220, KTY81/221, KTY81/222, KTY81/250
  • 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
  • KTY83-1, KTY83-110, KTY83-120, KTY83-121, KTY83-122, KTY83-150, KTY83-151, KTY83-152
  • KTY84-130, KTY84-150, KTY84-151

The Alpha Therm PTC series is a reliable and cost-effective solution for temperature measurement and control in a wide variety of applications including drives, motors, spindles, inverters, control systems, instruments, equipment, compressors and process control.

Thanks to its robust design and excellent performance, the PTC-2000 series is particularly suitable for industrial use. It provides accurate temperature sensing and monitoring to ensure optimal functionality and efficiency of your equipment and systems.

In addition to their high performance and compatibility, Alpha Therm PTC-2000 sensors offer long life and reliability. They are designed to withstand the stresses and challenges of the industrial environment and provide long-term, accurate temperature measurement and control.

For further information and individual advice, please do not hesitate to contact us. Contact us today to learn how the Alpha Therm PTC-2000 Series can best meet your temperature measurement and control needs.