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Three NTC 3950 100K thermistors with 1 m PTFE wires and 2.54 mm female connectors

Unique-Bargains

Unique-Bargains 3950 100K Thermistor 1 m 2.54 mm 3 pcs

SKU CH-RMA1-TVY0Z MPN 3950

Pack of three NTC 3950 100K thermistors with 1 m PTFE-insulated leads and 2.54 mm connectors for 3D printer hot ends

  • Measures -40 °C to 300 °C for high-temp filament printing
  • ±1 % accuracy gives reliable temperature control
  • 1 m PTFE-insulated wire withstands hot-end heat
  • 54 mm pitch connector fits common printer boards
  • Pack of three thermistors covers spares or multi-extruder setups

Three-Pack Pre-Wired Thermistors

This pack contains three NTC 3950 thermistors, each with a 1 metre PTFE-insulated lead terminated by a 2.54 mm pitch black female two-pin connector. They are intended for temperature sensing in 3D printer hot ends and heated beds. The nominal resistance is 100K Ohm with a stated accuracy of ± 1%.

Makers Replacing or Upgrading Sensors

The parts suit anyone fitting a standard thermocouple-compatible heating block on a RepRap-style machine. Builders who need a different resistance curve, a smaller connector pitch, or a bare-bead sensor without a wired harness should look at other options.

100K Ohm Nominal Resistance

The single specification that decides fit is the 100K Ohm nominal resistance at the reference point; the controller firmware must be configured for this value. The sensor covers a range of -40 °C to +300 °C, making it suitable for high-temperature filaments.

Highlights

  • Measures -40 °C to 300 °C for high-temp filament printing
  • ±1 % accuracy gives reliable temperature control
  • 1 m PTFE-insulated wire withstands hot-end heat
  • 54 mm pitch connector fits common printer boards
  • Pack of three thermistors covers spares or multi-extruder setups

Specifications

BrandUnique Bargains

Questions about this item

What printer board header matches the 2.54 mm pin pitch on these thermistors?

The black female 2-pin connector has a 2.54 mm pitch, so it plugs directly into any control board header spaced at that same pitch.

Will the PTFE-insulated leads survive the 300 °C upper limit of the sensor?

Yes, the high-temperature PTFE wiring insulation is rated for the full -40 °C to +300 °C range specified for the thermistor.

How can I confirm the three units are within the stated ±1 % tolerance?

Measure each thermistor at a known reference temperature and verify the resistance falls within ±1 % of the expected 100K Ohm curve for a 3950 beta device.

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