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Five NTC 3950 100K thermistors with one metre PTFE wires and white 2.54mm connectors

Unique-Bargains

Unique-Bargains 3950 100K Thermistor 1m Wire 2.54mm 5pcs

SKU CH-NTDX-BZ1D2 MPN 3950

Pre-wired 100K NTC thermistor with 1m PTFE-insulated wire, 2.54mm connector, ±1% accuracy from -40°C to +200°C, pack of 5

  • Pre-wired for quick installation with 2.54 mm connector
  • Five thermistors per pack for multiple printer setups
  • ±1 % accuracy ensures reliable temperature control
  • PTFE insulation withstands up to 200 °C operating temperature
  • Compatible with Ender 3, Ender 5 and CR-10 series printers

Direct replacement for popular printers

These NTC 3950 thermistors ship as a five-piece pack with one-metre PTFE-insulated leads and a 2.54 mm pitch two-pin female header. They drop straight into the extruder or heated bed of Ender 3, Ender 3 Pro, Ender 5, CR-10 and CR-10S machines. Each sensor is rated ±1 % accuracy across a -40 °C to +200 °C range, covering both standard and high-temperature filaments. The pre-wired construction removes the need for crimping or soldering during installation.

Not suited for non-standard connectors

Builders whose control boards use a different pin pitch or a three-pin header cannot use these without an adapter. The 100 K resistance curve also means they are not a match for printers that expect a 10 K or 50 K thermistor table in firmware. Users needing longer than 3.28 feet of cable or a bare-wire termination should look at other sensor kits.

100 K nominal resistance decides fit

The single specification that determines compatibility is the 100 K nominal resistance value; the controller firmware must contain the matching 3950 beta curve table for accurate temperature reporting.

Highlights

  • Pre-wired for quick installation with 2.54 mm connector
  • Five thermistors per pack for multiple printer setups
  • ±1 % accuracy ensures reliable temperature control
  • PTFE insulation withstands up to 200 °C operating temperature
  • Compatible with Ender 3, Ender 5 and CR-10 series printers

Specifications

BrandUnique Bargains

Questions about this item

Will the 2.54mm pitch connector fit the existing wiring harness on my Ender 3?

The 2.54mm pin pitch matches the standard JST connector used on Ender 3, Ender 3 Pro, Ender 5, CR-10 and CR-10S printers, so it plugs directly into the stock harness.

How can I confirm the 3950 100K thermistor is reading correctly after installation?

At room temperature the resistance should measure near 100K Ohm with a multimeter; the printer firmware should then report a temperature close to ambient, typically within the ±1% accuracy range.

Does the pack of five include any mounting hardware or crimp tools for the 1 metre PTFE leads?

The package contains only the five pre‑wired thermistors with 2.54mm female connectors; no screws, heat‑shrink or crimping tools are supplied.

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