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Thermistors, RTDs and Thermostats from the UK market leaders

ATC Semitec is the UK’s leading distributor of thermal components working with world leading innovative suppliers in the NTC thermistor, platinum RTD and thermostat industries, supporting engineers across a wide range of industries with their NPD or product upgrades

ATC Semitec, UK's Leading Supplier of Thermistats and Thermistors
Stock Availability Products ready to ship
Outstanding Service Extensive technical support
Competitive Pricing Exceptional Value

Working to beat COVID-19

ATC Semitec are proud to be supplying thermistors and thermostats to our customers, supporting the manufacture of vital equipment for the NHS. As well as clinical instruments, medical sensors and battery packs, our high quality products are being used to control the temperature of humidified air in ventilators. Read the full story here.

About Us

ATC Semitec offer an extensive range of innovative thermal products which are used across a wide range of products and market sectors. Using a combination of our technical expertise and comprehensive product ranges from our world leading manufacturers, we work with you to find the optimal solution to your temperature sensor and thermal safety requirements.

Our ranges include – Semitec’s NTC thermistors and thermistor sensors provide high accuracy temperature sensing and control for electronic and programmable thermostats. Platinum RTD thermistors from Heraeus provide accurate and reliable temperature control for industrial and automotive applications, with a constant linearity and precision at very high temperatures. PEPI thermal cut-outs and Asahi thermostats offer cost-effective temperature control or over temperature protection whereas Matsuo’s long-life precision thermostats bridge the gap between electronic temperature controllers and simple mechanical thermostats. Bimetallic thermal protectors and thermostats from SEKI are ideal for high temperature control in home and industrial appliances. Reliable circuit protection is provided by NEC Sefuse thermal fuses, TKS PTC Thermistors and Semifuse PTC fuses. Constant current is supplied via Semitec CRD current limiting diodes and current surges controlled by SCK inrush current limiters. And within the HVAC market, Campini adjustable thermostats provide accurate room temperature control and TKS humidity sensors can help provide a comfortable environment.

Latest News

Accurate High Temperature Platinum Micro Heater

Accurate High Temperature Platinum Micro Heater

September 4, 2020

Accurate Localised Heating From ATC Semitec Ideal for heating liquids, gases and solids that require quick, highly accurate localised heating. […]

Reliable Secondary Protection for High Power Battery Packs

Reliable Secondary Protection for High Power Battery Packs

August 14, 2020

Safe operation is the top priority for Li-ion batteries. While conventional current fuses only offer protection against high current incidents, […]

Together – ATC Semitec & their customers supplying components for the fight against COVID-19

Together – ATC Semitec & their customers supplying components for the fight against COVID-19

April 20, 2020

Whilst not at the very front-line of ventilator manufacturing, ATC Semitec are proud to be supporting our customers in their […]

What are NTC Thermistors used for?

What are NTC Thermistors used for?

July 3, 2019

With over 20 year’s experience in the thermal controls industry, ATC Semitec is the country’s leading distributor of thermal components.  […]

Smaller, Faster, More Responsive

Smaller, Faster, More Responsive

August 9, 2018

ATC Semitec’s robust glass-bead NT-4 series of thermistors have very high heat resistance and are highly sensitive, making them ideal […]