NTC and PTC thermistors, thermostats and thermal cut-outs,
thermal and PTC fuses, platinum sensors and circuit protection devices are
all available from the UK market leaders.
ATC Semitec Products
We supply NTCs from the world's most innovative NTC thermistor manufacturers. NTC thermistors and temperature sensors provide high accuracy temperature sensing and control for electronic thermostats.
1% tolerance NTCs are standard and a wide degree of interchangeability means that your product design is not limited by mere mechanical constraints.
PTC thermistors are generally used for over-current and over-temperature protection. For motor protection and general circuit protection, PTCs effectively offer a solid-state thermal switch or current fuse.
PTCs can also be supplied as self-limiting heaters to offer unique solutions for cabinet heaters, mosquito-killers, small appliances and time-delay applications.
Our thermistor sensors come in all shapes and sizes. From simple plastic encapsulated probes for air-sensing applications to sophisticated leaf-spring sensors, offering precision control of surface temperatures upto 250°C. Fast response temperature sensors utilising exposed bead NTCs or thin wall tubes, help control rapidly changing temperatures in air or fluids upto 200ºC.
Our thin-film low-profile 2-wire platinum elements are some of the smallest available (just 2 x 2mm) and conform to DIN EN 60751 (IEC 751). These laser-trimmed elements offer Pt100, Pt500 or Pt1000 interchangeability and are glass-sealed to ensure complete integrity.
They are highly stable and suitable for use up to 500°C (Class B) or 300°C (Class A).
PEPI thermostats offer both accurate temperature control and over-temperature protection from 5°C to 200°C - in one degree steps if necessary! With tolerances down to ±3K and temperature differentials of 10K or better, PEPI thermostats offer the best control/cost ratio available anywhere.
PEPI FCP and 11MP thermal cut-outs offer motor protection and transformer protection from 50°C to 160°C.
The Matsuo M and MQT series bimetal thermostats use a unique internal structure that offers a combination of tolerance, differential and repeatability that is un-paralleled in the industry. The twin bimetal system minimises calibration drift and ensures a long contact life from 100k - 1m cycles depending on the applied load.
This makes them ideal for anti-frost applications in CCTV cameras, TV antennas and wind-generators.
We offer the most comprehensive range of disc thermostats available from Asahi Keiki and EAW. A wide temperature range (-20/+350°C), high switching capacity (16A/380VAC) and multi fixing/termination options, means we can meet the requirements of both surface and air-sensing applications.
Plastic or ceramic bodies, automatic, manual reset or self-hold thermostats are all available from one source.
Campini adjustable thermostats are widely used in the heating appliance industry. The large bimetal blade ensures excellent repeatability and minimum differential/hysteresis, thus ensuring accurate temperature control. There are simple air-sensing thermostats (TY53 and TY35-P) controlling from 6°C~70°C and surface-sensing thermostats (TY23) offering control from 0~260°C with loads up to 10A/250VAC.
A thermal fuse (or thermal cut-off) is a "one-shot", non-resettable, temperature- sensitive device that provides ultimate temperature protection in appliances and safety circuits. Thermal fuses are mainly defined by their temperature setting but also by the current rating, which is the maximum continuous current that can be applied.
SEFUSE SF thermal fuses are readily available from stock.
Semifuse is a current-sensitive PTC fuse based on conductive polymer technology. Up to its "hold" current rating, the PTC will pass current with no effect on the rest of the circuit. Should an over-current condition occur, the PTC's resistance will exponentially increase, thus limiting the through current to safe levels.
Strap, radial and SMD formats offer current values from 0.1A to 15A at voltages now upto 240V.
PTC fuses and PTC SMD thermistors offer resettable over-current protection. CRD current regulating or CLD current-limiting diodes offer constant current levels with fluctuating voltages. ICLs and SCKs offer inrush-current protection for power-supplies and low-impedance circuits. Zenamics and TVRs offer over-voltage protection and SEFUSE thermal fuses offer ultimate temperature protection.