Thermistor NTC-3950 1M Cable

1m NTC 3950 thermistor cable for 3D-printer temperature inputs. A spare cable-style temperature sensor for hotends, heated beds, chambers, or electronics projects configured for a standard 100KΩ NTC / B3950 thermistor profile.

Why use this sensor

• Common firmware profile: 100K NTC / B3950 is a standard thermistor setting across Klipper, Marlin, and RepRap-style controller boards.
• 1m lead: useful for toolhead, bed, and enclosure wiring runs without an immediate splice on compact printer builds.
• Simple replacement part: keep one on hand for a failed or damaged temperature sensor before it takes the printer down.

Specifications

• Sensor type: NTC thermistor
• Thermistor curve: B3950 / NTC 3950 family
• Nominal resistance class: 100KΩ at 25°C
• Cable length: 1m
• Visible construction: white two-wire lead with a black sleeved sensor end and 2-pin connector
• Use case: 3D-printer hotend, heated bed, chamber, or controller temperature-sensor input where a 100K B3950 NTC sensor is specified

Fitment notes

• Use this where your controller and firmware expect a 100K NTC 3950 sensor.
• For a similar standard thermistor listing, compare the Thermistor 100K ohm NTC 3950.
• Pair with a 24V 40W heater cartridge when rebuilding a standard heater block.
• For higher-temperature builds, compare against the HT-NTC100K high-temperature thermistor or the Runice high-temperature thermistor cartridge before choosing this standard sensor.

What it is not

• Not a PT100 or PT1000 RTD sensor; do not use RTD firmware settings.
• Not a universal drop-in for every hotend: match the sensor shape, connector, cable length, and firmware thermistor table before installing.
• Do not exceed the temperature limit of your hotend, insulation, connector, or firmware configuration.