Ceramic NTC Thermistors

Thermistors have a negative temperature coefficient (TK) and are therefore also called NTC thermistors (NTC = Negative Temperature Coefficient).

They consist of mixtures of ceramic materials which determine their properties depending on the composition. Resistance values of 10Ω ... 1MΩ and operating temperatures of -50°C...350°C are possible.

If current flows through the thermistor or if the ambient temperature increases, the resistance decreases.

This behaviour can be used, for example, for temperature sensing, overcurrent limiting, inrush current limiting and heating purposes.

DHT Series


  • Temp. sensing
  • R25: 5kΩ...100kΩ
  • B25/50: 3550K...4350K
  • B25/85: 3435K...4300K
  • Ø 2 x 4mm
  • -40°C...+200°C

TTC03 Series


  • Temp. compensation / -sensing
  • R25: 0,9kΩ...470kΩ
  • B25/85: 3935K...5200K
  • Ø3mm
  • -40°C...+125°C

TTC05 Series


  • Temp. compensation / -sensing
  • R25: 0,5kΩ...470kΩ
  • B25/50: 2400K...4750K
  • Ø5mm
  • -30°C...+125°C

TTS Series


  • Temp. compensation / -sensing
  • R25: 2kΩ...470kΩ
  • B25/50: 3380K...4120K
  • B25/85: 3435K...4570K
  • Ø 1,8mm / Ø2,6mm
  • -40°C...+100°C

TTF Series


  • Temp. compensation / -sensing
  • R25: 5kΩ...100kΩ
  • B25/85: 3435K...4080K
  • B 3,6 x L10 / 25 / 50mm
  • -40°C...+100°C
TTC03 NTC Thermistor HeißleiterTTC05 NTC Thermistor HeißleiterTTS NTC ThermistorTTF NTC Thermistor Folie Heißleiter

NTC Series


  • Temp. compensation / -sensing
  • R25: 2,2kΩ...3643kΩ
  • B25/85: 3420K...4719K
  • Ø 0,55mm...Ø 2,3mm
  • -50°C...+350°C

TTC03C Series


  • Temp. compensation / -sensing
  • R25: 2kΩ...470kΩ
  • B25/85: 3435K...4100K
  • B25/50: 5200K
  • Ø 3mm
  • -55°C...+150°C
  • Automotive

TGM Series


  • Temp. compensation / -sensing
  • R25: 10kΩ...100kΩ
  • B0/100: 3970K
  • B100/200: 4300K
  • B25/85: 3975K
  • Ø 2,5mm
  • -40°C...+250°C

TSM Series


  • Temp. compensation / -sensing
  • R25: 2kΩ...220kΩ
  • B25/85: 3200K...4360K
  • B25/50: 3380K...4800K
  • SMD 0201, 0402, 0603, 0805
  • -40°C...+125°C

INT Series


  • Temp. sensing
  • R25: 1kΩ...30kΩ
  • B0/50: 3892K
  • Ø 2,4mm
  • -40°C...+100°C
  • Tolerance ± 0,1°C...± 0,5°C

TSM-C Series


  • Temp. sensing
  • R25: 5kΩ...100kΩ
  • B25/85: 3435K...4455K
  • B25/50: 3380K
  • SMD 0402, 0603, 0805, 1206
  • -50°C...+150°C
  • Automotive
DHT NTC Thermistor DiodeTGM NTC Thermistor HeißleiterTGM NTC Thermistor HeißleiterINT NTC Thermistor Heißleiter TSM NTC Thermistor SMD Heißleiter TSM NTC Thermistor SMD HeißleiterTTC03 NTC Thermistor Heißleiter


α Therm


Alpha Therm GmbH - Your specialist for temperature-limiting

safety components, sensor elements or sensors

© 2018 Alpha Therm GmbH

v 2.4

Phone: +49 6202 / 575688 - 0

Home Products Contact About us Shop Imprint Data Protection

Temperature protection

Temperature Protection

Overload protection

Overload protection

Surge protection


Surge protection

Temperature sensor elements

Temperature Sensors

Temperature controller

Temperature controller

Online shop

Download product overview

Mechanical switches

Mechanical switches