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PCB/Through Hole Thermistors

Our wide range of NTC thermistors includes several rigid-lead versions ideal for PCB mounting and incorporation into temperature sensors. When surface mount thermistors simply cannot offer the accuracy required, our radial lead designs can sense or control down to ±0.2°C or better.

Our thermistor series can be summarised as follows;

  • AT-2 Series – 1% tolerance industry standard thermistors from 1k to 100k ohms
  • AT-5 Series – 1% tolerance NTCs with tape & reel availability
  • AP-2 Series – 0.5% tolerance thermistors offering RT curve-matched accuracy
  • ATC3 Series – 1% tolerance NTCs with a wide range of values from 1k to 490kohms

We offer a comprehensive range of R25 resistance values, B values and bespoke lengths.

Using our extensive technical knowledge and innovative supplier base, we will work with you to provide the optimum solution for your application. Call us today on 01606 871680 to discuss your thermal sensor requirements. 

  • Semitec AT-2 High Accuracy NTC Thermistors

    The Semitec AT-2 range of NTC thermistors were the first to use lead-frame production technology, creating consistently accurate 1% tolerance thermistors at a significantly lower cost than other NTCs.

    • R25 values from 1k ohm to 100k ohms
    • Uniform shape aids automatic assembly
    • Excellent long term reliability
  • Semitec AT-5 Lead In NTC Thermistor

    Semitec 103AT-5 thermistors incorporate the same NTC element as the 103AT-2 but are fitted with 30mm long solid bare lead-wires (0.5mm dia).

    • ±1 % accuracy or better between – 5°C and + 80°C
    •  Tight R25 and B25/85 tolerances (± 1%)
  • Semitec AP-2 Ultra High Accuracy NTC Thermistors

    Semitec AP-2 thermistors offer RT curve-matched accuracy in a rigid lead format, making them ideal for over-moulded temperature probes, p.c.b. mounting and automotive applications.

    • High accuracy ±0.5% R25 & Beta value tolerances
    • Temperature Range: –60°C to +150°C
    • Extensive range stock, 9 values from 2kΩ to 200kΩ
  • High accuracy over wide temperatures: -40°C to +125°C
    ATC3 Series 1% Accuracy NTC Thermistors

    Our ATC3 series of rigid lead NTC thermistors offers the widest range of resistance values from 900ohms to 470kohms.  ±1% accuracy plus tape/reel options makes this range very flexible and cost-effective.

    • High accuracy over wide temperatures: -40°C to +125°C
    • Epoxy-coated lead-frame NTC thermistors
    • Rigid form-factor, available in bulk, taped reel or ammo pack
  • Miniature temperature sensors
    Semitec ET Miniature Epoxy NTC Thermistor

    Originally designed for clinical thermometer applications, this small bead NTC thermistor is very versatile and suitable for a range of applications from heat detectors to miniature temperature sensors.

    • Small bead design ensures a very fast response
    • Operating temperature range: -40°C to+100°C
    • Various insulated lead-wire options